Despite many numbers of studies in Technology Acceptance Model (TAM), the social influence construct has not been recognized, nor handled clearly. This study includes the social influence construct in TAM and tests the robustness of the model for different information systems contexts: office automation (spreadsheet) and Internet usage. Study findings include that 1) social influence has a dire...

Changing requirements is a general problem in software engineering, but in CSCW the problem is more grave than in other domains. In order to adequately support cooperation between people, one needs some understanding of how cooperation takes place. This is a very subtle and not fully formalizable process, as failures of early office automation systems and numerous CSCW studies testify [Suc83, S...

In this paper it is argued that open source developers and research projects carrying out user requirement analysis should collaborate at a closer level. In particular, we discuss how developers could take advantage of the knowledge generated by COSPA, a research project aimed at studying and supporting the introduction of open source software in the Public Administration. COSPA focuses on offi...

This paper presents a web-based environment that was designed and implemented in order to support the office automation courses of the Journalism & Mass Communication Department, at the Aristotle University of Thessaloniki, Greece. Special issues relating to these courses as taught in the traditional way, together with the given computer and communications infrastructure, pose various design sp...

Information retrieval (IR) technique stands today at a crossroads. With the enormous increase in recent years in the number of text databases available on-line, and the consequent need for better techniques to access this information, there has been a strong resurgence of interest in the research done in the area of information retrieval (IR). Originally an outgrowth of librarianship, it has ex...

Starting from ,the concept of cognitive representation we develop the notion of knowledge representation systems. A knowledge representation system establishes a correspondence between two bodies of knowledge. It can be used to convert one form of knowledge into another. The implications of this concept for artificial knowledge based systems are investigated. We demonstrate the usefulness of kn...

A system architecture is proposed for integrating sensors, controllers, actuators and instrumentation within a common framework. The goal is to provide a flexible and scalable system. Extending the system, by adding additional components such as sensors or actuators, does not increase the overheads and is achieved seamlessly with minimal modification of the core controller program. The architec...

D igital intelligence—the ability to understand and utilize the power of IT to our advantage, is becoming a critical skill for all managers in today’s economy,1 partly because of significant changes in the business environment in the last 50 years. The IT world has changed remarkably since the 1960s, when IT was largely a back-office function focused on automation and reducing costs, was not we...

This paper sumn1arizes the work being undertaken in ESPRIT project #860, 'Linguistic Analysis of European Languages'. The major objectives of this project are to provide statistics on the frequency of use of words, n-graphs, n-phones, and ambiguities (both in spelling and in pronunciation) as well as to develop a language modelthat can help in resolving ambiguities and that can perform a number...

NASA’s Space Operations Management Office (SOMO) working toward a goal of providing an integrated infrastructure of mission and data services for space missions undertaken by NASA enterprises. A significant portion of this effort is focused on reducing the cost of these services. We are interested in the potential of autonomy to reduce operations costs. Some attempts have already been made to a...