introduction: the critical dependence of healthcare services systems on information along with the indigenous restriction of paper documents in satisfying this need has caused a trend toward computer information systems. the main goal of such systems is to achieve electronic health records (ehr). however, implementation of ehr in healthcare organizations is difficult and complicated. this resea...

To reach a consistent termination state even in the presence of failures, composite web services require transactional support. Most current work on web services transactions is based on compensation. However, unlike in the traditional intra-organizational applications, the compensation is typically associated with temporal constraints in the context of web services. Such temporal constraints h...

The need for expressing temporal constraints in conceptual models is well-known, but it is unclear which representation is preferred and what would be easier to understand by modellers. We assessed five different modes of representing temporal constraints, being the formal semantics, Description logics notation, a coding-style notation, temporal EER diagrams, and (pseudo-)natural language sente...

Routine activity theory identifi es the routine activities of individuals as important to understanding the convergence of elements necessary for a crime to occur. Two recent studies have demonstrated how geographically aware agent-based models can be used to provide a virtual rather than empirical laboratory for testing theory. Those studies trace the development of three versions of a basic s...