Carla Diacui Medeiros Berkenbrock

Supporting Cache Coherence in Mobile Cooperative Systems

Efficient cache coherence strategies are critical to maintain data consistency and provide a reasonable performance of wireless applications with mobile devices. However, the majority of the current strategies for cache coherence in mobile environments have not been designed to be used in cooperative applications. In this paper we propose and describe an implementation of a cache coherence scheme for mobile cooperative work. The scheme is based on periodic broadcast of invalidation reports and provides some aspects of awareness information. The implementation is made through the development of a prototype cooperative application.

Designing and evaluating interfaces for mobile groupware systems

Mobile cooperative systems can facilitate cooperation by improving the flexibility of usage. However, mobile devices present some constraints that become the design and implementation of groupware systems harder. Additionally, there is a lack of general interface requirements definition and verification techniques for supporting the development of effective mobile groupware systems. This lack makes it more difficult to develop usable mobile groupware systems. In order to address some of these issues, we present a set of approaches for user interface design and requirements verification that can be used during the elaboration phase in the development of mobile cooperative applications.

Visualization and filtering awareness information in mobile groupware: An action research approach

This paper presents a cycle of action research conducted to investigate techniques for visualization and filtering of awareness information in a mobile collaborative game titled Warming Up The Brain. This study aims to identify the awareness information that should be presented to the users as well as how to arrange the awareness information in the mobile devices, considering its small screen size. In order to avoid problems such as information overload and information intrusiveness, the awareness information were filtered based on the group data. The game was used by 30 players, divided in 7 rounds. The usability evaluation show that the awareness information were well absorbed by users.

Usability Requirements for the Development and Evaluation of Mobile Groupware Systems

Usability is an important factor affecting the users productivity. However, evaluating groupware usability is a complex task, especially in a mobile environment. In this paper a study with eight requirements to explore usability in a mobile groupware environment is presented. A prototype application was developed followed by a series of evaluations to observe the potential of the requirements. Results show that these requirements should be considered during the development of a mobile groupware in order to help designers to identify usability weaknesses in a mobile groupware.

Implementação e Análise de Uso de uma Aplicação para Edição Cooperativa em Dispositivos Móveis

Supporting mobile cooperative work with synchronous applications that require consistency of data is a challenge due to the constraints imposed by both mobile devices and wireless network. The development of techniques for designing flexible cooperative systems that better fit the mobile users is required. However, both techniques and applications are still scarce and there are doubts over the effectiveness of such applications in the CSCW research community. In this article we developed a synchronous application that supports cooperative edition by mobile users. The usage of the application provides an analysis of how the limitations of mobile devices influence the success of synchronous mobile cooperative work.

A systematic literature review of evaluation methods for health collaborative systems

This paper presents a systematic literature review of evaluation methods for collaborative systems in health area. This work aims to identify the state of art of evaluation methods as well as to detect gaps in this area. The focus of evaluation is the usability and collaboration in health systems. The Systematic Literature Review method was used to realize the systematic revision in ACM and IEEE Xplore digital libraries. It was found 123 papers with the keywords researched. The analysis result shows that works related to health in general does not evaluate the collaboration aspect. In the searched works we found that, in general, they briefly assess the functions and usability aspects of the target system. This paper presents the study and concludes that the healthcare information systems remain being an area that demands effort of research and study.

A case study of Natura Campus Open Innovation platform - A collaborative systems overview

Innovation is receiving considerable attention since companies are facing difficulties to create new products and interact with customers under markets that constantly changes. In the face of such scenario the open innovation seems to be an effective strategy to keep enterprises aware of customer needs and also interact with universities which are able to understand the tendencies and holds deep knowledge of innovative subjects. Although open innovation has a rich literature regarding the benefits and cases of success this literature does not focus on how collaboration systems are used to support open innovation. In this article we present the important relation that exists between open innovation and collaborative systems with a case study of Natura Campus program. We evaluated tools which compose the collaboration platform and how it supports Natura Campus Open Innovation. We found that CSCW tools are capable of support open innovation and help to bring effective results in order to enhance competitiveness.

Using participatory design in designing phase of collaborative systems

In this paper we present the use of participatory design in a public health management system, called PRONTO, that is being developed in Brazil. This system involves a partnership between the city hall and the University of Blumenau and it is being developed by the Development Laboratory and Transfer of Technology. The project involves a health network with 64 units of family health, 8 ambulatories and 1 polyclinic. The paper describes the experience in the project phase of the Multidisciplinary Treatment System module and presents the obtained results.

A Systematic Mapping about User Sensitive Information on Social Networks

Social networks are used by millions of users every day and become part of our lives. However, privacy and security issues have been raised since users sensitive information are exposed by several manners. Users sensitive information disclosure is not solved yet by current social networks. Thus several researches have been done in order to understand implications and users awareness. Different approaches and techniques are applied on every study resulting a heterogeneous set of information. In order to better understand the current state of the literature about users privacy disclosure and security we conducted a review of published papers on IEEE, ACM and Science Direct using a systematic mapping. We evaluated 143 papers and classified 35 under our defined criteria to consider only studies with experiment on user privacy and security disclosure. Results indicate an academic preference to conduct questionnaire approaches aiming to explore users awareness. We also notice that most of studies are limited to small groups and that research community is basically restricted to USA, Europe and Asia.