Although persistent availability is one of the basic requirements of the middlewares for pervasive computing systems to provide "anytime anywhere" services, very little work has been done on this issue. Soft System Bus (SSB) was proposed to provide "anytime anywhere" middleware platform support to large-scale reactive systems which run continuously and persistently. However, till now no SSB has been implemented. In this paper, we present a comparative study between the SSB and different types of traditional middlewares, e.g., synchronous Request/Reply, Message Oriented, Publish/ Subscribe middlewares, etc, in order to find the implementation issues of an SSB. We show that although existing middlewares have some characteristics that are common in an SSB too, they lack some features which are unique and essential for an SSB. Finally, we present the implementation issues of an SSB to ensure persistent availability.
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- A Comparative Study Between Soft System Bus and Traditional Middlewares
Mohammad Reza Selim
- Springer Berlin Heidelberg