This dissertation studies several security issues in data networks, to reveal the vulnerability, to propose defense mechanisms, to provide better tools for analysis, and to develop good security architecture. This dissertation consists of the following three parts: (1) Internet-like topologies...

This paper discusses a social process model for design activity in organizational IS development projects,based upon the findings of an interpretive, participant observation study of information system designprocesses in a mid-sized UK telecommunications equipment manufacturing company. The form...

This study was conducted on the premise that if quality business information is provided to business enterprises, socio-economic transformation could be achieved. The study emanated from the documented problem where business enterprises in northern Uganda were found to depend on "word of mouth"...

The purpose of this research was to address the shortcomings of the daily activity schedule model and introduce changes in the model system in order to more fully utilize the potential benefits of such a system. The major problem with the previously developed model was its full reliance on the...

In this dissertation we study problems associated with the sharing of computer and information resources. The first two essays examine optimal pricing mechanisms in Distributed Computing Systems from a theoretical and experimental perspective. We build a theoretical model of a computing grid...

Due to the continual innovation in information technology, vast amounts of information in various forms have become available to people for the purpose of decision making and problem solving. Consequently, how to represent the information to facilitate the processes of decision making and...

Organizational change and development (OCD) has been studied by researchers to identify the effectiveness of change initiatives. Because of the broad scope of interventions in OCD, these studies have covered a range of areas including multiple interventions and the methodological rigor used by...

In search of competitive excellence, economic developers often ask for guidance and assistance on key enterprise management and operational issues relating to running a quality economic development program. They are interested in operating as effectively as possible, in making the highest...

The view of the organization as a system that ‘processes’ information or ‘solves’ problems is at odds with the dynamics of change associated with the development and use of IS in an organization. A significant consequence of this mismatch is in training that does not meet the needs of...

Full-text of this article is not available in this e-prints service. This article was originally published in Social enterprise journal, published by and copyright Emerald.