%M C.CLIHC.05.1
%T Towards mood-oriented interfaces for synchronous interaction
%S Full Papers
%A Sánchez, J. Alfredo
%A Kirschning, Ingrid
%A Palacio, Juan Carlos
%A Ostróvskaya, Yulia
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 1-7
%K affective computing, emoticons, emotion models, instant messaging,
valence-arousal model
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111361
%X This paper presents an approach to representing emotions in synchronous
text-based communication which facilitates setting, conveying and perceiving an
intended mood in a continuing fashion. We posit that, while chatting, users
typically remain in a continual mood for relatively extended periods of time,
as compared to the instantaneous representation provided by mechanisms such as
smiley faces and emoticons. In order to explore our hypothesis, we built a
prototypical instant messaging environment that provides a persistent
representation of mood. This representation is based upon a bi-dimensional
valence-arousal model of emotions. We report on initial results that indicate
that synchronous text-based communication benefits from this approach.

%M C.CLIHC.05.8
%T Accessibility as a quality requirement: geographic information systems on
the web
%S Full Papers
%A Schimiguel, Juliano
%A Melo, Amanda Meincke
%A Baranauskas, M. Cecília C.
%A Medeiros, Claudia Bauzer
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 8-19
%K accessibility, quality, web GIS applications
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111362
%X Web applications enable users with different profiles and necessities to
access information from diversified locations and with different access tools.
Besides the aspects that have already been discussed in works from the Software
Quality domain, the accessibility to information and the Internet flexibility
have been considered more and more important. Thus, considering accessibility
as an important quality attribute for Web applications, in this paper we
investigate the subject considering the context of Geographic Information
Systems on the Web. Preliminary results of accessibility evaluation on some
WebGIS applications show that this domain presents several challenges to be
coped with in the design of their user interfaces.

%M C.CLIHC.05.20
%T Experimental study on evaluation of multidimensional information
visualization techniques
%S Full Papers
%A Pillat, Raquel M.
%A Valiati, Eliane R. A.
%A Freitas, Carla M. D. S.
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 20-30
%K information visualization, multidimensional visualization, usability
evaluation
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111363
%X Information visualization systems often present usability problems mainly
because many of these tools are not submitted to complete evaluation studies.
This paper presents an experimental study based on tests with users to evaluate
two multidimensional information visualization techniques, Parallel Coordinates
and Radviz. The tasks used in the experiments were defined based on a taxonomy
of users' tasks for interaction with multidimensional visualizations. The study
intended to identify usability problems following the ergonomic criteria from
Bastien and Scapin on implementations of both techniques, especially built for
these experiments with the InfoVis toolkit.

%M C.CLIHC.05.31
%T Evaluation and context for in-car speech systems for older adults
%S Full Papers
%A Zajicek, Mary
%A Jonsson, Ing-Marie
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 31-39
%K in-car speech systems, speech systems, usability testing, voice quality
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111364
%X Listeners to speech based information systems attribute qualities to voices
which will make them receptive, or otherwise, to the information. This paper
looks at the value of laboratory-based usability testing on voices for an
in-car speech messaging system. It compares results concerning the users'
perception of voice, in particular source credibility, performed first on
voices presented out of context in a laboratory setting and then the same
voices embedded in an in-car system in a driving simulator. In the case of
older adults the results are significantly different raising issues of context
and value in usability testing for this group.

%M C.CLIHC.05.40
%T Software engineering, HCI techniques and Java technologies joined to develop
web-based 3D-collaborative virtual environments
%S Full Papers
%A Menchaca, Rolando
%A Balladares, Leandro
%A Quintero, Rolando
%A Carreto, Chadwick
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 40-51
%K 3D collaborative virtual environments, Java technologies, human computer
interaction, object oriented programming, software engineering
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111365
%X In this paper, we describe a set of tools, based on software engineering,
HCI techniques and Java technologies, to support the software development
process of 3D Web-based collaborative virtual worlds (CVE) populated by non
autonomous interactive entities. This work is a first effort to define a
methodology supported by design, analysis and implementation tools that assist
the development of Web-based CVE. Our proposal emphasizes on the collaboration
aspects among the entities that populate the virtual world and the services
that they offer to each other in order to carry out collaboration, rather than
modeling and aesthetical aspects of the worlds. This is done from conceptual,
operational and implementation points of view. The tools we propose are; a
model for the conceptualization of the virtual world under the concept of
social groups, a graph-based high level notation to specify the interactions
among the entities, and a Java-based software framework that gives support to
the model and the interaction graph in order to facilitate the implementation
of the CVE. We describe the current implementation of our model. At the end, we
outline how these tools could be part of a methodology for the construction of
Web-based CVE and show an example of a CVE developed following the methodology
and tools described.

%M C.CLIHC.05.52
%T Understanding mobile work in a distributed information space: implications
for the design of ubicomp technology
%S Full Papers
%A González, Víctor M.
%A Tentori, Mónica E.
%A Morán, Elisa B.
%A Favela, Jesús
%A Martínez, Ana I.
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 52-63
%K distributed information spaces, empirical studies, modeling of interactive
behaviors, ubiquitous computing
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111366
%X Moving beyond the focus on interactions at the desktop computer, this paper
introduces a model providing conceptual tools to understand mobile work in
distributed information spaces. The model serves to describe the fundamental
interactive relationships between mobile and fixed people and artifacts
physically distributed in a space. Our model emerges as a result of empirical
ethnographic investigations of medical work conducted to ground the design of
ubiquitous computing technology. The model is used here in the analysis of data
collected during a detailed observation and shadowing of four medical workers.
This analysis resulted on a set of design implications that we present here
together with relevant findings about the nature of the kind of mobile work
experienced at hospital medical settings. We argue that modeling and
characterization efforts such as the one presented here are necessary to build
the theoretical foundations required for the development of ubiquitous
computing.

%M C.CLIHC.05.64
%T Online help system design based on the situated action theory
%S Full Papers
%A Vouligny, Luc
%A Robert, Jean-Marc
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 64-75
%K contextual help, mixed-initiative interactions, online help, situated action
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111367
%X Nowadays, different forms of assistance are available in interactive
computer-based systems. However, current online help systems, which correspond
to the main components of online assistance, often are unsuccessful in
providing support to users. The help that is offered is not well-suited to the
problem the users encounter and to the particular needs they have. This paper
reports on a new approach to online help system design based on the situated
action theory. The approach has been implemented in a system called AIDE. The
system has been evaluated with 15 subjects having to do programming tasks in
C++, and compared to the online help available in the programming environment
they were using and on the Web. The main results show that the assistance
provided by AIDE was three times as effective as the two other forms of
assistance to help in defining the problem, and twice as effective to help in
resolving it. Results also show that with the AIDE system, students had much
less recourse to human assistance when trying to complete their tasks.

%M C.CLIHC.05.76
%T UPi: a software development process aiming at usability, productivity and
integration
%S Full Papers
%A Sousa, Kenia
%A Furtado, Elizabeth
%A Mendonça, Hildeberto
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 76-87
%K integration, productivity, return on investment, software development
process, usability
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111368
%X This paper presents the definition of a software development process (SDP)
that integrates practices from Software Engineering (SE) and Human-Computer
Interaction (HCI) with three main goals. First, we intend to help professionals
from both areas in developing interactive systems with usability. Second, we
want to make HCI an essential part of SE processes by facilitating the
communication between professionals from these two areas, thus, bringing
productivity to a new working environment. Third, we aim at describing the
basis for generating User Interfaces (UI) through the integration of HCI
concepts in the process, rather than on depending only on UI designers'
experience.

%M C.CLIHC.05.88
%T Mobile refinding of web information using a voice interface: an exploratory
study
%S Full Papers
%A Capra, Robert G., III
%A Pérez-Quiñones, Manuel A.
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 88-99
%K conversation analysis, information management, information refinding, speech
recognition, voice user interfaces
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111369
%X Refinding information found on the web is a considerable problem for many
users, especially when in mobile situations. In this paper, we explore how a
voice-controlled service, accessible by telephone, could help to support mobile
users' needs for refinding specific information previously found on the web. We
outline challenges in creating such a service and describe architectural and
user interfaces issues involved in an exploratory prototype system called
WebContext.
   We also present the results of a study -- motivated by our experience with
WebContext -- to explore what people remember about information that they are
trying to refind and how they express information refinding requests in a
collaborative conversation. The results and observations from our study: 1) add
support and extend prior research on the importance of waypoints in the
refinding process, 2) provide evidence that refinding may be accomplished using
an iterative, two-stage model in which users first search for the information
source, and then browse for the particular information being sought, revealing
details of their information need as they make progress, and 3) give insights
into the use of annotations added to web pages by the user to help in a
collaborative refinding process. We also note the importance of context and
artifacts in the refinding process and comment on the possible implications of
our findings for the design of tools and interfaces for information refinding
with a special emphasis on implications for voice interfaces for mobile
refinding.

%M C.CLIHC.05.100
%T On the usability of gesture interfaces in virtual reality environments
%S Full Papers
%A Cabral, Marcio C.
%A Morimoto, Carlos H.
%A Zuffo, Marcelo K.
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 100-108
%K computer vision, usability of gesture interfaces, virtual reality
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111370
%X This paper discusses several usability issues related to the use of gestures
as an input mode in multimodal interfaces. The use of gestures has been
suggested before as a natural solution for applications that require hands-free
and notouch interaction with computers, such as in virtual reality (VR)
environments. We introduce a simple but robust 2D computer vision based gesture
recognition system that was successfully used for interaction in VR
environments such as CAVEs and Powerwalls. This interface was tested under 3
different scenarios, as a regular pointing device in a GUI interface, as a
navigation tool, and as a visualization tool. Our experiments show that the
time to completion of simple pointing tasks is considerably slower when
compared to a mouse and that its use during even short periods of time causes
fatigue. Despite, these drawbacks, the use of gestures as an alternative mode
in multimodal interfaces offers several advantages, such as quick access to
computing resources that might be embedded in the environment, using a natural
and intuitive way, and that scales nicely to group and collaborative
applications, where gestures can be used sporadically.

%M C.CLIHC.05.109
%T Conveying human-computer interaction concerns to software engineers through
an interaction model
%S Full Papers
%A de Paula, Maíra Greco
%A Barbosa, Simone Diniz Junqueira
%A de Lucena, Carlos José P.
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 109-119
%K HCI models, HCI-SE integration, UML, interaction modeling
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111371
%X This paper addresses the challenge of efficiently representing and
communicating decisions about human-computer interaction to collaborate with
software engineers. It describes and illustrates in a case study how an
interaction modeling language based on the semiotic engineering of
human-computer interaction may be used to derive a skeleton of certain UML
diagrams, namely: use case, class, and sequence diagrams. Our goal is to
provide a clear representation of the interactive exchanges that may take
place, in order to prevent human-computer interaction decisions to be lost or
inadvertently overruled when designing the system architecture and internal
functional behavior.

%M C.CLIHC.05.120
%T Revealing relationships in search engine results
%S Full Papers
%A Zaina, Cláudio Max.
%A Baranauskas, M. Cecília C.
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 120-127
%K information visualization, query results visualization, search engine
results, world wide web
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111372
%X The amount of information available in the Internet is so vast that finding
the desired information in such an unstructured repository easily becomes a
tedious task. Graphical cluster-based representations of results from search
engines shift the user's mental load from slower thought-intensive processes of
reading information got from linear lists of results to faster perceptual
processes such as pattern recognition in a visual display. In this paper we
investigate the subject by presenting the design proposal of a new system that
uses concepts of Information Visualization to help the user of Internet search
engines to identify the group of documents that are related to the needed
information by examining or browsing documents in the group. Some results of
preliminary usability tests for the system are also provided shedding some
light to the subject.

%M C.CLIHC.05.128
%T MArq-G*: a semiotic engineering approach for supporting the design of
multi-user applications
%S Full Papers
%A Barbosa, Clarissa M. de A.
%A Prates, Raquel Oliveira
%A de Souza, Clarisse S.
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 128-138
%K design impacts, feedback on design, group communication processes,
multi-user applications, semiotic engineering
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111373
%X This paper presents MArq-G*, a semiotic engineering epistemic tool for the
design of multi-user applications that leverages the designers' knowledge about
the influence such applications may have on group dynamics and development.
More precisely, MArq-G* is a conceptual architecture model for multi-user
application design-support tools. It has been devised to help designers express
part of their vision and rationale about group communication processes, as well
as reflect upon potential consequences of their design decisions. The paper
illustrates how MArq-G* enables different insights from those motivated by the
use of task-based models in design. Moreover, a contrast with insights enabled
by design ontologies inspired by speech act theory shows how MArq-G* supports
new kinds of perspectives on multi-user applications.

%M C.CLIHC.05.139
%T Comparing accessibility evaluation and usability evaluation in
HagáQuê
%S Full Papers
%A Tanaka, Eduardo Hideki
%A Bim, Sílvia Amélia
%A Rocha, Heloísa Vieira da
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 139-147
%K accessibility evaluation, computers and education, usability evaluation
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111374
%X Usability and accessibility are two attributes very important in software
design nowadays and, in general, are evaluated separately. On one hand,
usability evaluation methods alone can't answer whether software is accessible
to all kind of users. On the other hand, an accessibility evaluation can say
little about software usability. However, it seems that usability and
accessibility evaluation methods have some points in common. The aim of this
article is to compare and discuss the similarities and differences between the
results of accessibility and usability evaluations in HagáQuê, a
comic book editor software for pedagogical usage.

%M C.CLIHC.05.148
%T Animated agents and TTS for HTML documents
%S Full Papers
%A Kirschning, Ingrid
%A Rueda, Joaquín O.
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 148-154
%K TTS, enciclomedia, microsoft agents, speech synthesis
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111375
%X The present paper describes a project aimed to create a framework for
interactive stories providing HTML based documents with speech capabilities and
an animated character, as required in the Enciclomedia environment. This
development is inspired by the success of the interactive books created by the
CSLR of Colorado University [1], which integrate speech synthesis and
educational agents into reading books for children. It uses Microsoft Agent
technologies with MS SAPI speech synthesis and the resulting documentation [2]
makes the integration of these tools to any HTML document easy and fast.

%M C.CLIHC.05.155
%T Development of a perceptive interface based on facial displays applied to
learning environments
%S Full Papers
%A Luraschi, Javier Arturo Porras
%A Cosío, Ana Luisa Solís González
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 155-161
%K computer, expressions recognition, facial displays, learning environments,
neural networks, optic flow, pattern, perceptive interfaces, real time, vision
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111376
%X This paper proposes a real time perception interface which can enhance the
experience at learning environments by using the face as a communication
channel with the system. In this work, relevant expressions are assigned to
learning environments when it is important to know the user's interest on the
information that is displayed. The actual system is implemented using pattern
recognition techniques and visual recognition algorithms, and evaluated by its
results.

%M C.CLIHC.05.162
%T Using water as interface media in VR applications
%S Full Papers
%A Pier, Marissa Díaz
%A Goldberg, Isaac Rudomín
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 162-169
%K Water as HCI element, design of tactile interfaces, human-computer
interactions, immersive systems, virtual reality hardware
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111377
%X Human Computer Interface (HCI) has changed throughout the years, and evolved
to integrate reference objects and other handy tools to improve interaction. It
is now possible to develop tangible interfaces, where all kinds of objects are
used: strings, clay models and virtual pens as well natural elements such as
water, sand and air. In Virtual Reality applications the use of tangible
interfaces and virtual reference allows the user to get involved with the
virtual world in a more fluid and explicit way. In this paper we describe how
we use water as a HCI and how we turn a water receptacle into a
self-explanatory interaction tool. In our experience touching real water has
proven to be rather dramatic as a tactile interface since it involves much more
than the mere skin contact with the water; the effect is magnified by the
temperature and wetness which affect the perception of the user. We have used
water as interface for several applications and in this paper we will also
discuss our results.

%M C.CLIHC.05.170
%T Promoting a separation of concerns via closely-related interaction and
presentation models
%S Full Papers
%A Silva, Bruno Santana da
%A Netto, Otávio A Martins
%A Barbosa, Simone Diniz Junqueira
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 170-181
%K abstract presentation model, interaction design, interaction model,
separation of concerns
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111378
%X A common goal of HCI design processes is to provide an organized set of
procedures and representations to develop high-quality interactive systems.
However, we find large gaps between representations in existing approaches, and
some representations do not have a clear scope or focus. This paper proposes to
use a set of closely-related notations to address different sets of design
issues in successive stages of design, aiming to achieve a clear separation of
concerns. In particular, it focuses on the transition from an interaction model
to an abstract presentation model.

%M C.CLIHC.05.182
%T Improving text entry performance for Spanish-speaking non-expert and
impaired users
%S Full Papers
%A Curatelli, Francesco
%A Martinengo, Chiara
%A Mayora-Ibarra, Oscar
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 182-189
%K human-computer interaction, impaired users, orthogonal keyboard,
pseudo-syllables, text entry
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111379
%X In this paper, an efficient method is described which is able to improve the
efficiency of typing texts for non-expert and impaired users. Specifically, we
propose an innovative key-board configuration that improves typing performance
in languages with transparent orthographies. By adopting a novel orthogonal
framework, the configuration of the keyboard is defined as a 2-D regular array
of keys. According to this scheme it is possible to input, in a direct and
intuitive way, any possible combination of pseudo-syllables (which are text
entry units with simpler consonant-vowel phonemic structure), being also
possible to introduce single characters in the classical, letter by letter,
way. The orthogonal keyboard scheme has been applied and tested with the
Spanish language, for it is the most spoken transparent language in the world.
The performed tests show a significant improvement of the efficiency in
alphanumeric text typing.

%M C.CLIHC.05.190
%T Authoring tools for adaptive learning designs in computer-based education
%S Full Papers
%A Berlanga, Adriana J.
%A García, Francisco J.
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 190-201
%K IMS LD, authoring tools, computer-based education, learning design, learning
technology specifications
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111380
%X A challenging topic in computer-based education is to develop authoring
tools that support the creation of personalized learning designs that, on one
hand, do not prescribe any learning approach and, on the other, guarantee the
reusability and exchangeability of those learning designs. In this paper we
argue that Adaptive Educational Hypermedia Systems (AEHS) can employ the IMS
Learning Design (IMS LD) specification as a notational method. In such way,
that teachers and designers will have freedom for designing personalized
learning flows that are interoperable and reusable. To support our reasoning,
first, we briefly explain AEHS and their characteristics. Then, we introduce
the learning design concept and the IMS LD specification. Subsequently, we
present an authoring tool we are developing to define learning designs with
adaptive characteristics for AEHS and, subsequently, we illustrate their
definition by means of a study case. Afterwards, we point out the strengths and
weakness of utilizing IMS LD in AEHS, and finally, we expose conclusions and
further work.

%M C.CLIHC.05.202
%T Vias-Ka: modelo de acessibilidade para sistemas computacionais de
educação a distância
%S Full Papers
%A Miranda, Andréa
%A Martins, Janae Gonçalves
%A Santos, Juliano dos
%A Loureiro, Sabrina
%A Rodriguez, Alejandro Martins
%A Specialki, Elizabeth
%A Barcia, Ricardo Miranda
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 202-210
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111381
%X Considering the needs of the current society to provide education for all
equally, the Virtual Institute of Advanced Studies (VIAS) aims at creating
solutions for the development of competencies at various levels, which with an
educational modeling adequate to each situation act, aiming at usability,
flexibility and functionality of the different Distance Education (DE) courses
support tools. Thus, this article presents an educational platform model, based
on the digital accessibility criteria, considering, a priori, the deaf
characteristics.

%M C.CLIHC.05.211
%T Avaliação comparativa de algoritmos de
personalização para direcionamento de conteúdo
%S Full Papers
%A Alves, Carlos R. C.
%A Filgueiras, Lúcia V. L.
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 211-222
%K content recommendation, personalization, usability
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111382
%X Personalization techniques that combine user characteristics, user behavior,
and content organization can be used to help users on finding objectively
content on the web. The main contribution of this text is the multidisciplinary
study that was conducted integrating different areas on human knowledge in
order to find the best way to direct content, including a wide research on
personalization concepts and application. This study also presents the
development of the Argo software which is formed by a web site, a component
that captures and stores information about the user navigation, and three
different personalization algorithms. Using navigation data it is possible to
generate user profile, which is used to recommend content. Tests were conducted
to check efficiency of the personalization algorithms.

%M C.CLIHC.05.223
%T Integrando visões de IHC e de ES por padróes no
desenvolvimento por prototipação descartável
%S Full Papers
%A Silva, André Constantino da
%A Silva, Júnia Coutinho Anacleto
%A Penteado, Rosângela Aparecida Dellosso
%A Silva, Sérgio Roberto Pereira da
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 223-234
%K desenvolvimento de sistemas interativos, modelos de processo, padrões
computacionais
%* (c) Copyright 2005 ACM
%L Spanish
%W http://doi.acm.org/10.1145/1111360.1111383
%X O objetivo deste artigo é apresentar um modelo de processo de
Prototipação Apoiado por Padrões de ES e de IHC. Este
modelo foi desenvolvido ao se analisar os problemas resultantes da
aplicação do modelo de processo de Prototipação ao
desenvolver sistemas interativos considerando as visões de ES e de IHC.
Sua finalidade é amenizar os problemas levantados por meio da
aplicação de padrões. Para validar a proposta do modelo
proposto foi realizado um estudo de caso cujo objetivo foi desenvolver um
sistema interativo para gerência de pedidos realizados por telefone para
uma lanchonete, aplicando um conjunto de 342 padrões das áreas de
ES e IHC.

%M C.CLIHC.05.235
%T Organização conversacional: inspeção das
representações na WikiPedia
%S Full Papers
%A Pontes, Adéle Malta
%A de Souza, Clarisse Sieckenius
%A Barbosa, Simone Diniz Junqueira
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 235-245
%K WikiPedia, engenharia semiótica, organização
conversacional, sistema de significação
%* (c) Copyright 2005 ACM
%L Spanish
%W http://doi.acm.org/10.1145/1111360.1111384
%X Neste trabalho analisamos uma ferramenta do tipo Wiki, chamada WikiPedia.
Nesta análise mostramos como os designers desta ferramenta criam seus
sistemas de significação e como os usuários apropriam-se
deste sistema de signos e criam, a partir das suas interpretações
e das restrições impostas pelos designers, seus próprios
sistemas de significação. O foco da análise recaiu na
representação de signos voltados à
caracterização de uma conversa. Esta caracterização
permitiu, além de um olhar mais especifico em relação aos
sistemas de signos da WikiPedia, uma classificação
genérica de sistemas de apoio à participação em
discussões (SAPD's).

%M C.CLIHC.05.246
%T Detecção de padrões repetitivos em
seqüências de ações sobre ruído em
aplicações por demonstração
%S Full Papers
%A Silva, Sérgio Roberto P. da
%A Penteado, Raqueline Ritter de M.
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 246-255
%K domain knowledge, extensible applications, programming by demonstration
%* (c) Copyright 2005 ACM
%L Spanish
%W http://doi.acm.org/10.1145/1111360.1111385
%X Software applications that exploit implicit programming by demonstration
should be able to detect repetitive patterns in user's actions in an autonomous
and efficient way. In this paper, we present a software agent for the detection
of repetitive action patterns that makes use of domain knowledge in this
process. We explain its design rationale and discuss some of its advantages, by
comparing it with the classic algorithm KRM, which does not make use of domain
knowledge. We demonstrate that our agent might have a more efficient detection
process for repetitive tasks since it activates the search algorithm fewer
times. Moreover, we show that it can detect repetitive tasks even in the
presence of noise in the action sequence.

%M C.CLIHC.05.256
%T ErgoManager: um sistema gerenciador de interfaces com o usuário para
sites web transacionais
%S Full Papers
%A Cybis, Walter de Abreu
%A Scapin, Dominique
%A Morandini, Marcelo
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 256-267
%K SGUI, análise de arquivos de log, avaliação de
usabilidade, métricas de usabilidade, web
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111386
%X This paper describes the specification of ErgoManager as well as the results
from the first validation study associated with the development of this UIMS
(User Interface Management System) intended to support webmasters at assuring
"in use" quality for interactive Web sites. The ErgoManager UIMS aggregates two
basic components: ErgoMonitor and ErgoCoIn. ErgoMonitor is a monitoring tool
intended to quantify the "average" usability that web sites have been offering
to theirs users. It applies task-oriented analysis as a way to identify
specific instances of users' behaviors while they are accomplishing
transactional tasks with the web site. In the sequence, ErgoMonitor determine
the incidence and the duration of these behaviors and use these data to produce
usability measures, which quantify the average productivity of interactions.
ErgoCoIn is a checklist based CSEE (Computer Supported Ergonomic Evaluation)
tool that features automatic services aimed at inquiring context of use aspects
and recognizing web page components as a way to tailor focused ergonomic
checklists. By integrating these tools, ErgoManager intends to support a
quality assurance strategy based on the confrontation between usability
quantitative metrics and qualitative aspects of user interfaces.

%M C.CLIHC.05.268
%T Personalização de interfaces para ambientes virtuais de
aprendizagem baseados na construção dinâmica de comunidades
%S Full Papers
%A Lima, Paulo Sergio Rodrigues
%A de Brito, Silvana Rossy
%A Silva, Orlando Fonseca
%A Favero, Elói Luiz
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 268-276
%K ambientes virtuais de aprendizagem, comunidades virtuais de aprendizagem,
hipermídia adaptativa, personalização de interfaces
%* (c) Copyright 2005 ACM
%L Spanish
%W http://doi.acm.org/10.1145/1111360.1111387
%X As experiências com o uso sistemático dos Ambientes Virtuais de
Aprendizagem (AVAs) têm relatado problemas de diferentes naturezas. A
maioria dos problemas esté relacionada com a enorme quantidade de
informação que precisa ser gerenciada e ao mesmo tempo estar
disponível para professores e alunos, as interações entre
os diversos participantes do processo e a dificuldade de perceber que as
atividades dos outros têm impacto direto nas suas próprias
atividades. Este artigo propõe uma solução baseada em
personalização para estações individuais de
aprendizagem como foco na formação dinâmica de comunidades.
Valorizando a percepção e considerando que os alunos exercerem
diferentes papéis nas várias comunidades em que participam.

%M C.CLIHC.05.277
%T User modeling with personas
%S Short Papers
%A Junior, Plinio Thomaz Aquino
%A Filgueiras, Lucia Vilela Leite
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 277-282
%K personas, user modeling, user profile, user roles
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111388
%X User demographic and behavior data obtained from real user observation
provide valuable information for designers. Yet, such information can be
misinterpreted if presented as statistic figures. Personas are fictitious user
representations created in order to embody behaviors and motivations that a
group of real users might express, representing them during the project
development process. This article describes the persona as being an effective
tool to the users' descriptive model.

%M C.CLIHC.05.283
%T Designing for all in the house
%S Short Papers
%A de Salces, Fausto J Sainz
%A England, David
%A Llewellyn-Jones, David
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 283-288
%K domotica, elderly, multimodal
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111389
%X The elderly population in the world is increasing rapidly and consequently
so is demand for new technologies that allow them to live independently.
Facilitating the control of household appliances and the home environment
through various devices that encompass multimodal and ambient interfaces seems
a way to achieve this. We tested three modalities of output -- audio, visual
and multimodal -- using two different devices -- palmtop and laptop -- as
realistic prototypes of household appliance controllers. Through experimental
design the applicability of using icons and musical earcons as a medium to
transmit information to the user and its suitability to the home was
investigated. Results showed participants performed markedly better using the
multimodal and visual interfaces than with the audio interface. In addition
both groups performed better using the palmtop as compared to the laptop.

%M C.CLIHC.05.289
%T Instructional design and interaction style for educational adaptive
hypermedia
%S Short Papers
%A de Assis, Alessandro S. F. R.
%A Danchak, Michael M.
%A Polhemus, Linda
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 289-294
%K adaptive hypermedia, instructional design, interaction styles, learning
styles
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111390
%X Learning styles have been attracting the attention of many researchers in
educational adaptive hypermedia. We define educational adaptive hypermedia as a
learning system designed to tailor online presentations of content for
individuals over time. The general approach is based on learning styles
psychometric instruments to categorize students and adapt the system
accordingly. However, the validity of such assessment instruments is
questionable, which might compromise the whole adaptation process. We
investigate a cyclical instructional design able to satisfy different learning
styles. Observing individuals' interaction styles with this learning cycle
revealed to us some hints on how to personalize lessons so that individual
learning is improved.

%M C.CLIHC.05.295
%T Cognitive strategies to the increase of hyper document quality to distance
learning
%S Short Papers
%A Neris, Vânia P. Almeida
%A Silva, Júnia C. A.
%A Neto, Americo Talarico
%A Zem-Mascarenhas, Sílvia
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 295-300
%K cognitive strategies, distance learning, hyper documents, quality, usability
evaluation
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111391
%X For an effective process of distance learning it is necessary to assist
teachers during the design of instructional material, helping them designing
the material structure, navigation, organization and layout and considering
pedagogical aspects that facilitate the student knowledge building. We consider
usability as the needed effort to use the software and the material as an
interface to students. In this context, if the material is made easier to be
understood, teachers are reducing the students' effort and increasing the
material usability. The main goal of this work was to evaluate the use of a
group of Cognitive Strategies as an aid for structuring and organizing the
instructional material content delivered through the interface, aiming to
increase the hyper document usability and consequently its quality. It is
intended to write and document these principles in a Pattern format.

%M C.CLIHC.05.301
%T Integrating activity theory and organizational modeling for context of use
analysis
%S Short Papers
%A Neto, Genésio Cruz
%A Gomes, Alex Sandro
%A Castro, Jaelson
%A Sampaio, Suzana
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 301-306
%K activity theory, context of use analysis, organizational modeling,
requirement engineering
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111392
%X Activity Theory is a theoretical-based context analysis technique that
anchors the ethnographer descriptive work, calling his attention to the
individual and social elements of human activities. For more than a decade, it
has been a recognized framework for enhancing computer design practices,
however there are still no methods for integrating context analysis based on
Activity Theory with traditional system modeling techniques. In this paper we
present a system design process that integrates ethnographic analysis based on
Activity Theory with the i* organizational modeling technique. The approach
uses human-practices analysis as the social root for system requirements
derivation.

%M C.CLIHC.05.307
%T When marketing meets usability: the consumer behavior in heuristic
evaluation for web
%S Short Papers
%A Benini, Maria Julia
%A Batista, Leandro L.
%A Zuffo, Marcelo K.
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 307-312
%K commercial websites, heuristic evaluation, practical HCI experience,
predictive models
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111393
%X This paper describes a solution on heuristic evaluation for HCI
(human-computer interaction) that has been applied in commercial websites
usability intervention.
   It is a practical experience report of the efficient use of HCI
(human-computer interaction) that has been received enthusiastically by the
market. Its relevance comes from the combination of experimental psychology
models both from HCI and consumer behavior theories.
   Graphical user interface (GUI), information structure and contents are
analyzed by the point of view of the Marketing and of the cognitive ergonomics.
While the GUI design and its inherent wireframe are responsible for sharing
cognitive efforts with user, avoiding information processing overload, the
information structure and contents not only corroborate for usability but also
for the website communication strategies effectiveness.

%M C.CLIHC.05.313
%T Estudo comparativo utilizando uma ferramenta de avaliação de
acessibilidade para web
%S Short Papers
%A Tangarife, Timóteo
%A Mont'Alvão, Cláudia
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 313-318
%K W3C, e-Government, inclusion, web accessibility
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111394
%X The social inclusion of disabled people demands an realization of resources
to become viable and effective. This article presents the question of
accessibility for the Brazilian Electronic Government and a Brazilian tool of
accessibility validation. An exploratory research was carried through, taking
for base the homepage of a governmental site showing that there is a difference
in the results obtained following the recommendations of the W3C and the
Electronic Government. The article shows the necessity of having a
harmonization of the accessibility standards to create a unified demand of the
market for software which support web accessibility.

%M C.CLIHC.05.319
%T Personas como modelo de usuários de serviços de governo
eletrônico
%S Short Papers
%A Filgueiras, Lucia
%A Aquino, Plinio, Jr.
%A Sakai, Rodrigo
%A Filho, Alvaro Gregório
%A Torres, Carlos
%A Barbarian, Iara
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 319-324
%K e-government, personas, usability, user model, user profile
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111395
%X Efforts towards Internet use as a means for public services are definitely
increasing worldwide. In Sao Paulo State, Brazil, usability is considered an
important factor to citizen-centric e-government. The dispersed nature of
e-government development, by many different teams and the broad audience of
internet makes user modeling an essential task for communicating user
characteristics to designers. The persona modeling technique is a valuable tool
to this task.. This paper presents the process of obtaining personas from user
data in e-poupatempo and their use for design and usability evaluation.

%M C.CLIHC.05.326
%T Software usando reconhecimento e síntese de voz: o estado da arte
para o Português brasileiro
%S Short Papers
%A Neto, Nelson
%A Silva, Enio
%A Sousa, Erick
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 326-331
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111396
%X Speech is a natural interface for human-computer interaction. Speech (or
voice) technology is a well-developed field when one considers the
international community. There is a wide variety of academic and industrial
software. The majority of them assumes a recognizer or synthesizer is
available, and can be programmed through an API. In contrast, there are few
resources in public domain for Brazilian Portuguese. This work discusses some
of these issues and compares SAPI and JSAPI, which are APIs promoted by
Microsoft and Sun, respectively. We also present two examples: a tic-tac-toe
JSAPI-based game using Portuguese digits recognition and a computer-aided
language learning (CALL) application using SAPI-based speech recognition in
English and synthesis in Portuguese.

%M C.CLIHC.05.332
%T Geração de interfaces através de sistemas baseados em
conhecimento: uma abordagem centrada em explicações de modelos de
resolução de problemas
%S Short Papers
%A Libório, Andréia
%A Furtado, Elizabeth
%A Rocha, Ismael
%A Furtado, Vasco
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 332-337
%K geração de interface, interface abstrata, problem solving
method, sistema baseado em conhecimento
%* (c) Copyright 2005 ACM
%L Spanish
%W http://doi.acm.org/10.1145/1111360.1111397
%X O processo de geração de interface de usuário é
complexo e exige um grande esforço do especialista porque existem
várias combinações possíveis e incertezas sobre a
mesma opção. Acreditamos que é importante a modelagem dos
conceitos de IHC e dos conhecimentos de todos os envolvidos e um reuso dessa
modelagem para automatizar e otimizar tal processo. Portanto propomos um SBC
(Sistema Baseado em Conhecimento) que represente o conhecimento dos projetistas
de interface. Esse Sistema possui a característica interativa, de
maneira que o usuário pode ter uma explicação do resultado
produzido melhorando o entendimento e a aceitação da interface
proposta. Aplicamos o método proposto para gerar protótipos da
interface do usuário de um sistema de simulação da
criminalidade.

%M C.CLIHC.05.338
%T Aprendizaje de las matemáticas utilizando una herramienta distribuida
%S Posters
%A Rocha, Everth
%A Gerónimo, Gabriel
%A Hernández, Francisco
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 338
%* (c) Copyright 2005 ACM
%L Spanish
%W http://doi.acm.org/10.1145/1111360.1111398
%X Este proyecto busca apoyar el proceso de aprendizaje de las
matemáticas en escuelas de educación primaria, proponiendo una
práctica educativa que utiliza modelos mentales usuales para el
niño, el uso de la informática, y de tecnología
distribuida de información. A lo largo de este documento se expone la
forma en que se han empleado metodologías de usabilidad para implementar
la interfaz de esta herramienta.

%M C.CLIHC.05.339
%T Ambientes virtuais inclusivos: desafios ao design para acessibilidade
%S Posters
%A Melo, Amanda Meincke
%A Baranauskas, M. Cecília C.
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 339
%K accessible design, communication, inclusive virtual environments
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111399
%X In this paper, we describe an ongoing Project carried out in our University
to investigate aspects of accessibility in the campus and to propose solutions
towards the construction of an inclusive environment. Our focus in this Project
is on promoting the accessibility to the information technology, especially
through the Web.

%M C.CLIHC.05.340
%T Desenho de interface para sistema de armazenamento e
distribuição de imagens médicas
%S Posters
%A Urtiga, Keylla Sá
%A Gutierrez, Marco Antonio
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 340
%* (c) Copyright 2005 ACM
%L Spanish
%W http://doi.acm.org/10.1145/1111360.1111400
%X Sistemas de Informação em Saú;de são
extremamente complexos por serem de natureza confidencial, pelo volume
crescente de dados armazenados e por permitirem acesso a um grande
número de usuários distintos. Conseqüentemente, o desenho de
efetivas interfaces para esses sistemas tornou-se um importante desafio no
âmbito da Informática Médica. Entretanto, verifica-se que
pesquisas voltadas à construção de sistemas médicos
baseados nos princípios de desenho centrado no usuário (DCU),
visando sua usabilidade, tem tido pouca proeminência, especialmente no
Brasil. Reunindo esforços para modificar essa realidade, apresenta-se o
desenho da interface de um sistema de transmissão e arquivamento de
imagens médicas (PACS), o qual possui a interface WEB fundamentada na
área de Interação Humano-Computador (IHC), e seu desenho
norteado por heurísticas de usabilidade vastamente conhecidas na
literatura.

%M C.CLIHC.05.341
%T Patterns de interface em PDA: aplicação em coleta de dados de
usabilidade
%S Posters
%A Aquino, Plinio T., Jr.
%A Filgueiras, Lucia V. L.
%A de Oliveira, Elen C.
%A Bello, Thaysa R.
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 341
%K PDA, interface patterns, usability laboratory
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111401
%X This poster describes interface patterns for PDA defined from usability
studies at application developed from Usability Engineering Laboratory. The
applications usability studies generated 15 interface patterns for PDA, with
propose to create reliability during usability tests in Laboratory. When using
defined patterns, it was gotten efficiency during the execution of the
application.

%M C.CLIHC.05.342
%T MobiZoom -- utilizando SVG em dispositivos móveis como auxílio
à visualização de Páginas web previamente
conhecidas
%S Posters
%A Liporace, Pablo
%A Filho, Jose Bezerra da Silva
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 342
%* (c) Copyright 2005 ACM
%L Spanish
%W http://doi.acm.org/10.1145/1111360.1111402
%X Este trabalho apresenta uma proposta que visa agilizar a
navegação de páginas Web em dispositivos dotados de telas
de tamanho reduzido, em especial nos aparelhos celulares.
   Propomos através da ferramenta MobiZoom, a
transformação de página HTML em documento escalável
SVG (Scalable Vector Graphics), sendo este visualizado utilizando uma interface
baseada em Zoom (ZUI -- Zoomable User Interface).

%M C.CLIHC.05.343
%T Diseño y evaluación de una interfaz móvil para lectura
de medidores de energía
%S Posters
%A Álvarez-Cortés, Víctor
%A Zayas-Pérez, Benjamín
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 343
%* (c) Copyright 2005 ACM
%L Spanish
%W http://doi.acm.org/10.1145/1111360.1111403
%X El Instituto de Investigaciones Eléctricas (IIE) ha venido trabajando
durante varios años en el área de AMR (Lectura Automática
de Medidores, por sus siglas en inglés) así como en la
deteccón del robo de energía eléctrica como líneas
estratégicas para el desarrollo de infraestructura interna y
también como respuesta a las demandas de automatización de la
Comisión Federal de Electricidad (CFE) y de la Compañía de
Luz y Fuerza del Centro (LyFC).
   Dentro del área de distribución de la energía
eléctrica, donde los equipos de medición se encuentran
localizados geográficamente en diferentes puntos dentro de la ciudad,
los sistemas de medición remota requieren del empleo de equipo
móvil que le permita al lecturista o supervisor recorrer la zona
asignada y recopilar los datos de medición de campo y/o datos de
posibles ilícitos en el uso del servicio de energía. Actualmente
el dispositivo móvil empleado para realizar la lectura consiste en una
terminal de mano, incluso en los sistemas más recientes, la cual ofrece
funciones para lectura, programación y configuración de los
medidores y de los equipos concentradores de mediciones eléctricas.
   Analizando la funcionalidad ofrecida por las terminales de mano del sistema
de lectura remota del IIE, se percibe que ésta es limitada, tomando en
cuenta que su interfaz de usuario está basada en caracteres, mediante
las cuales el usuario introduce la información en secuencias de teclas.
   Esta forma de entrada de datos ofrece mecanismos limitados de
recuperación de errores, ya que en el caso de equivocación, el
usuario debe generalmente empezar nuevamente la secuencia. Asimismo, las
capacidades de conectividad de las terminales de mano están limitadas a
los dispositivos de medición en campo y carece de esquemas de enlace a
redes tipo LAN, WLAN o Internet, que les permita intercambios dinámicos
para manejo de información de energía en línea.
   Lo anterior impacta en la arquitectura del sistema de medición, que
requiere que la terminal sea transportada desde el lugar de la medición
en campo, al centro local únicamente para descargar los datos de la
terminal y posteriormente integrar los datos de todas las demás
terminales al sistema de facturación.
   La hipótesis del trabajo de investigación es que la terminal
de mano, de uso fuertemente arraigado en el sector eléctrico y
actualmente reconocido como el medio aceptado para la lectura de medidores,
puede ser reemplazado por el uso adecuado de dispositivos y tecnología
móvil. En particular se plantea el uso de un dispositivo móvil
tipo PDA para reemplazar a la terminal de mano, lo cual se estima
permitirá mejorar la interacción entre dispositivo y lecturista,
así como ofrecer un medio para facilitar el uso y aprendizaje de la
aplicación de medición para las tareas tanto de lectura,
programación y configuración de los equipos de medición.
   Quizá el uso tan extendido de la terminal de mano obedezca a la
tendencia de utilizar tecnologías y equipos probados en este sector
eléctrico donde debido a la naturaleza crítica de su
operación y necesidad de continuidad en sus procesos se favorece la
adopción de tecnologías probadas, aunque no necesariamente
innovadoras.
   Para probar las posibles ventajas de adopción del dispositivo
móvil, se desarrolló un prototipo de interfaz móvil
siguiendo un diseño centrado en el usuario que ofreciera las capacidades
de configuración, programación y lectura remota de mediciones de
energía e ilícitos.
   El prototipo desarrollado se evaluó utilizando las métricas de
usabilidad de eficiencia, eficacia y percepción subjetiva de los
usuarios. Las pruebas se desarrollaron en laboratorio con técnicos del
sector eléctrico evaluando su desempeño desde el punto de vista
de usabilidad. Asimismo se realizó la evaluación de la terminal
de mano con los mismos técnicos ejecutando las mismas tareas con el
objeto de comparar resultados entre ambos sistemas y encontrar evidencia
experimental que permitan establecer las ventajas de la interfaz propuesta en
PDA.

%M C.CLIHC.05.344
%T Herramientas etnográficas y una variante del muestreo de experiencias
para el rediseño de la GUI de un cliente de mensajes instantáneos
por internet
%S Posters
%A Tzec, Omar Sosa
%A Molina, Roberto Holguín
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 344
%* (c) Copyright 2005 ACM
%L Spanish
%W http://doi.acm.org/10.1145/1111360.1111404
%X Se propone una interfaz gráfica de usuario (GUI) de uno de los
clientes de mensajes instantáneos por Internet (IRC) considerando
computadoras con pantalla pequeña aplicándose dos métodos
basados en el muestreo de experiencia (ES) [1] para luego realizar con el
resultado un ejercicio de búsqueda de necesidades [2]. Luego, un modelo
esquemático-radial se plantea para el proceso de rediseño el cual
se fundamenta en el paradigma de diseño conocido en inglés como
Calm Technology (CT) [3].

%M C.CLIHC.05.345
%T A web-agent based system to extend the elders social family networks
%S Posters
%A Santana, Pedro C.
%A González, Víctor M.
%A Rodríguez, Marcela D.
%A Favela, Jesús
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 345
%K digital photos, elderly, sharing, social family networks
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111405
%X The aging of the population is a phenomenon faced by most nations. From a
qualitative study, key issues emerged regarding unmet needs of elder's
communication that we propose to address with a web-agent based communication
system.

%M C.CLIHC.05.346
%T Mediando processos de comunicação em
organizações e desenhando interfaces
%S Posters
%A Chebabi, Raquel Zarattini
%A Baranauskas, M. Cecilia C.
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 346
%K communication, lean production, organizational semiotic, user interfaces
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111406
%X In this paper, we describe an ethnographic-based approach to understand and
analyze aspects of communication processes within work organizations, aiming at
the design of a system to support them. Results of a case study showing the
process of understanding, modeling and representing the system through its
interfaces is discussed.

%M C.CLIHC.05.347
%T Diseminación de información a través de pantallas
publicas concientes del contexto
%S Posters
%A Rodríguez, Marcela D.
%A Andrade, Angel G.
%A González, Maria-Luisa
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 347
%* (c) Copyright 2005 ACM
%L Spanish
%W http://doi.acm.org/10.1145/1111360.1111407
%X Actualmente, una de las formas de dar a conocer información en
grandes organizaciones, es a través de corchos que se encuentran
localizados en puntos estratégicos donde esta información es
visible por la mayoría de los usuarios. Tomamos como caso de estudio
nuestra Universidad, en donde encontramos que estos corchos lucen saturados de
información, por lo que resulta engorroso localizar información.
Lo anterior nos ha motivado a proponer un sistema que mediante Pantallas
Electrónicas Públicas, se ayude a los usuarios a localizar
fácilmente la información más relevante para sus
actividades. Para lo anterior se propone utilizar la técnica de
visualización de "Pared en Perspectiva" [1].

%M C.CLIHC.05.348
%T Generation of usable interfaces for mobile devices
%S Posters
%A Sánchez, J. Alfredo
%A Starostenko, Oleg
%A Castillo, Eduardo Aguilar
%A González, Marisol
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 348
%K generic interfaces, mobile devices, usability guidelines
%* (c) Copyright 2005 ACM
%W http://doi.acm.org/10.1145/1111360.1111408
%X We report on our work aimed at the generation of interfaces for mobile
devices that comply with usability guidelines. We conducted a usability study
that led to the definition of ten general usability guidelines for mobile
devices. We then modified our existing software platform for mobile interface
generation so that it enforces the proposed usability guidelines.

%M C.CLIHC.05.349
%T Comparación de algoritmos de aprendizaje para identificación
del usuario a través de la voz
%S Posters
%A Villatoro, Esaú
%A Villaseñor-Pineda, Luis
%A Montes-y-Gómez, Manuel
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 349
%* (c) Copyright 2005 ACM
%L Spanish
%W http://doi.acm.org/10.1145/1111360.1111409
%X En este trabajo presentamos una comparación entre cuatro algoritmos
de aprendizaje automático para identificación del hablante. El
estudio hace hincapié en la simplificación de la
caracterización de la señal de voz al no usar reconocimiento
fonético. Los resultados hasta ahora alcanzados nos brindan elementos
para preferir el algoritmo de Máquinas de Vectores de Soporte (SVM).

%M C.CLIHC.05.350
%T Color patterns para aplicação de cores em projetos web focados
em EAD
%S Posters
%A Buchdid, Samuel Bastos
%A Silva, Júnia C. Anacleto
%A Silveira, Luciana Martha
%B Proceedings of the 2005 Latin American conference on Human-computer
interaction
%D 2005-10-23
%P 350
%* (c) Copyright 2005 ACM
%L Spanish
%W http://doi.acm.org/10.1145/1111360.1111410
%X Este trabalho tem o objetivo de oferecer um apoio maior aos projetistas WEB,
bem como aos educadores que promovem a Educação a Distância
(EAD) e aos alunos que querem participar das discussões de projeto, e
que não necessariamente têm um conhecimento profundo sobre o uso
de cores na WEB. Visando associar as soluções de sucesso
percebidas nesse contexto aos aspectos físicos, fisiológicos e
culturais envolvidos na percepção cromática e focalizando
problemas de usabilidade do sistema, tais como aprendizagem,
memorização, performance, taxa de erro, satisfação
e finalização da tarefa, pretende-se formalizar Color Patterns a
partir do conhecimento e experiência de uma especialista na
aplicação de cores no projeto WEB.