Integrating 3270 applications with a SOA

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Currently I'm working on the implementation of a kind of service oriented architecture, with  the challenge (isn't it the right way of calling it) of integrating a bunch of 3270 applications -about 2K green screens-.

The solution design we are working on is consuming the 3270 screen on a middleware (BizTalk 2004) via XML. For the translation between the 3270 maps and XML we are considering a couple of tools, OnWeb and myEXTRA!

A curious mix between old and new fashion.