Why interaction is more powerful than algorithms
Communications of the ACM
The entity-relationship model—toward a unified view of data
ACM Transactions on Database Systems (TODS) - Special issue: papers from the international conference on very large data bases: September 22–24, 1975, Framingham, MA
Logic of Change: Semantics of Object Systemswith Active Relations
Automated Software Engineering
CAiSE'11 Proceedings of the 23rd international conference on Advanced information systems engineering
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Full exploitation of a new computer technology, Internet in particularly, is impossible to achieve without redesigning the business to align it with the new technology. One of the most important tasks of such redesign is reengineering of business processes. Implementation of more effective processes is impossible without a proper computer support. A computer system that is aimed to support business processes, e.g., workflow management system, possesses a number of properties that are different from the properties of traditional business information systems. The modeling techniques widely used for traditional system development might not be appropriate for the development of computerized support for business processes, new modeling techniques should be considered for this end. A possible approach to creating such a technique is presented in the paper. It is based on defining interactions without explicit communication. Interaction is realized via active relationships that can propagate changes from one object to another. Based on this idea, which comes from the previous research work of the authors, the paper discusses the issues of introducing "harnesses" on the interactive behavior, finding the right place for the end-users in the model, and modeling distribution of tasks between different users.