Abstract
DPWS (Device Profile for Web services) provides a standard solution for implementing SOA (Service Oriented Architectures) at device level. However, the achieved performance is sometimes not sufficient, especially for process control applications, where a performance improvement of an order of magnitude of 10 is targeted. Among all possible solutions, implementing EXI (Efficient XMl, the most promising Binary-XML solution) coupled with DPWS, is investigated through the FP7 AESOP collaborative project. The software architecture of the corresponding stack has been defined, and the first full implementations in industrial devices will be available in 2011 for benchmarks and final technology choices.
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