The DIANA Approach to Mobile Computing

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Network Management. Both the legacy applications and the workflow management systems have embedded assumptions about the underlying networks and the available communication protocols that they wi... ll be using. These assumptions provide significant inflexibilities and limitations. Furthermore, networking across hardware platforms introduces complications such as security. Also, there may be the unavailability of similar operating system features on different platforms, e.g., a workflow system relying on RPC (remote procedure call) to implement triggers becomes ineffective if one participant system does not provide support for RPC. Design Complexity. An inherent problem with workflow systems is the complexity of designing working workflow models. Most of the systems, in their bid for providing the designers maximum flexibility, put a lot of responsibilities on the designers. Designers have to manage the conceptual entities in their workflow model, such as roles, tasks, jobs. Designers also have to be aware of the heterogeneity of the physical resources their system will be using and the restrictions this heterogeneity will impose on their model [Show More]

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