Russell Levine writes in the Business Integration Journal about the Myth of the Disappearing Interfaces. If you work in IT, have been involved in some EAI projects, and are a relatively critical thinker, then there probably is not a lot of new information for you. However the piece serves nicely as an antidote to the run-of-the-mill "Service Oriented Architecture", well, pablum.
More good information can be found at Doug Barry's site. Almost too much at once without a trail guide. Better than run-of-the-mill, without a doubt.
From Russell:
- n^2 vs. n comparisons should be considered harmful.
- A clue that there might be a problem with this argument is that these pictures often have applications with names such as A, B, and C.
- Applications along a value chain often have many different connections.
- Ultimately you need to understand data flows to assess the complexity of the integration challenge.
- Data mapping requires intimate knowledge of the data and how it's used.
- You must understand every data relationship. That hard work is unavoidable.
- Any benefit must be balanced against the effort of creating an intermediate, or "canonical", model.
- Portfolios with the critical mass to justify such efforts don't emerge overnight.
- Focus on business benefits.
- Estimate costs with and without the integration technology.
- Be conservative!
There you go.
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