SOA services: build now, worry about reuse later?

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Lifecycle

I agree with Dan Woods in that SOA deserves to be revived.

However, I disagree with his "two stage" approach. To reiterate, he suggests that stage one is you build services willy nilly, and in stage two, you govern them.

The disagreement stems from the following reality. 99% of the world is already in stage two. We've already had decades of building services willy nilly without mind to reuse or any other architectural value for that matter.

The livestock is already out of the barn.

Think of SOA Governance as herding sheep.

You have a few choices. Today, the sheep are running all over the farm, going into the neighbor's yard, eating everything.

If you dont have a fence, a shepard's crook and some sheep herding experience, you probably arent going to be able to change the behavior of your sheep (baa-havior?)

This is why governance is significant. A lot of different options have been proposed lately such as

1) dont buy a fence or shepard's crook (no governance tools)
2) dont bother having any skill or experience herding sheep (no architecture skills)
3) dont do anything and let the sheep run amuck

Of the three options, option 3 is probably the least expensive. but of course it doesnt fix the problem.

Agree we need an incremental approach, but clearly most organizations already have tons of technical services.

My 2 cents,
Miko

Posted by: mikojava   Posted on: 08/12/09 You are currently: a Guest | Members login | Terms of Use

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