Workflow handbook 1997
Signature Management in Workflow Systems
COMPSAC '99 23rd International Computer Software and Applications Conference
Software Development as a Workflow Process
APSEC '97 Proceedings of the Fourth Asia-Pacific Software Engineering and International Computer Science Conference
Liaison: A Workflow Model for Novel Applications
APSEC '98 Proceedings of the Fifth Asia Pacific Software Engineering Conference
A Workflow Vista of the Software Process
DEXA '97 Proceedings of the 8th International Workshop on Database and Expert Systems Applications
Valmont: A Language for Workflow Programming
HICSS '98 Proceedings of the Thirty-First Annual Hawaii International Conference on System Sciences-Volume 7 - Volume 7
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Currently, many software systems are developed in offices geographically distributed in different locations. Furthermore, it is also common for a software system development project contracting to different software houses. These contracted software development projects, very often, are further sub-contracted to some other software houses. These software development modes can be supported and managed by a good distributed workflow systems. Signatures are playing an important role in these software development modes. Most workflow systems, at best, can only support digital signatures. Digital signatures with public key cryptosystem are limited to authentication, integrity, confidentiality and non-repudiation. The wide variety of signature purposes such as authorization or multiple signatures in group decision making are not supported explicitly by most workflow systems. We have studied different kinds of signature in software development and workflow systems. This paper discusses the problems and solutions of incorporating these signatures in distributed workflow engine, in particular, the Liaison Workflow Engine, to support the contemporary modes of software developments.