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Software Fortresses: Modeling Enterprise Architectures by Janet Van Sickler, Roger Sessions

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Summary

In this chapter I have covered the basics of synchronous drawbridges, which are sometimes referred to as blocking drawbridges. Here are the most important points to remember about synchronous drawbridges:

  • They can be optimized for the homogeneous case. Homogeneous synchronous drawbridges use native component protocols.

  • They can also be designed for the heterogeneous case. Heterogeneous synchronous drawbridges are usually based on SOAP messages delivered over HTTP.

  • The same SOAP/HTTP that is used for heterogeneous synchronous drawbridges is the basis for intercompany collaboration, a topic I consider to be a Web service fortress.

  • Homogeneous synchronous drawbridges can support transaction flow across drawbridges. You should not use this feature. ...

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