Browsing by Author "Hornung, Christoph"

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    A Model and Architecture to support Asynchronous Collaboration Medes in Intranets
    (The Eurographics Association, 2023) Luz, Rui Moreira da; Marcos, Adérito; Hornung, Christoph; Santos, Manuel Próspero dos; António Augusto de Sousa; José Carlos Teixeira
    The typical synchronous collaboration solutions have been proved to be rather unacceptable when work conditions avoid group members to work on-line. This can be the case when people are geographically distributed among different time zones with no (or few hours of) overlapping work-time or when difficult network (transmission) problems occur. For those cases, the support of asynchronous collaboration environments would be highly desirable. Through them, people have the possibility to work locally and to exchange cyclically within each other their contributions. A process of annotation and explicit authoring of each private editing shall be kept while the shared documents circulate. This paper examines the importance of supporting asynchronous fonns of collaboration and presents a global model and architecture for a related environment. Some fundamental concepts are established along with implementation considerations and strategies we have adopted during the development phase of a prototype system. An example of application in the area of distributed CAD is also included.
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    Using Multimedia to Support Cooperative Software Development
    (The Eurographics Association, 2023) Marcos, Adérito; Hornung, Christoph; F. Mário Martins; José João Almeida; Jorge Gustavo Rocha
    The aim of this paper is to propose a global solution to support Cooperative Soft- ware Development (CSD) through a multimedia environment. CSD systems have as main goal to enable several users connected over a network to work together in order to develop software products. They have to solve problems such as: coherence main- tenance of the software project through the distributed system by managing possible conflicts between local versions of each group member and, above all, promote the necessary mechanisms for the inter-group awareness and integrity. We introduce here the strategies of our own CSD prototype: a computer- supported cooperative work architecture for software development. It enables a group of developers ( 2 to 4), possibly located at remate places and connected over network, to develop software together. A cooperative multimedia editing envi- ronment is available for the whole Development Cycle, enclosing mechanisms of computer-conferencing (text, audio and video communications).