Context-Sensitive Access Control Model for Government Services

During the past two decades, e-government information systems have become less paper-based and more computer-based. Those information systems usually take the form of workflow systems. Due to the large social impact of e-government systems, computer security plays a pivotal role in ensuring its efficiency and effectiveness. Access control is one of the key aspects of computer security. Current access control models do not take into account the context of the system and its environment. In this article, we argue that a formal context-sensitive access control model can improve the development of e-government workflow systems and present a particular context-sensitive access control model. The subject of the article is a specification of the context-sensitive access control model for business processes (COBAC). By using a context-sensitive access control, it is possible to define more sophisticated access control policies that cannot be implemented by existing access control models. The COBAC's context is modeled using Web Ontology Language (OWL) in order to provide formal representation of context, rich representation of diverse contextual information, semantic interoperability between various context-aware systems, and a high degree of inference making. The presented model is applicable in different e-government systems, and supports the definition of access control policies for both simple and complex business processes. The model's prototype is verified by a case study on a real e-government business process—the national petty offense trial proceedings.     

Contributing to Global Management Knowledge: A Case for High Quality Indigenous Research

The major contributor to global management knowledge is scholarship in developed economies, especially in North America and Western Europe. The development of a global management knowledge base lags behind the globalization of business enterprises. With the emergence of many developing economies around the world, progress in building the body of global management knowledge could be enhanced by encouraging high quality indigenous research in these novel contexts. This essay is a complementary piece to the APJM Special Issue on Asian Management Research: Frontiers and Challenges (August 2002). It discusses three types of global management models through two types of context-sensitive research. It argues the need for high quality indigenous research, using the influential studies on management in the Chinese context as illustrations. It offers guidelines on conducting high quality indigenous research that produces contextualized knowledge on the one hand and contributes to global knowledge on the other.