Monday Jul 08, 2013

SOA Version Control by Mark Nelson

This article is a part of a series on SOA Development and Delivery.

Let's get started on our SOA Development and Delivery journey by talking about version control.  But before we delve right in, let’s take a moment to reflect on this axiom:

Axiom 1: Developing a SOA Composite Application is software development.

When we sit down to create a SOA Application, i.e. composites, user interfaces, services, etc., we are actually embarking on a software development exercise.  I think that some people do not believe (or at least they do not admit to themselves) that this is the case.  Why?  Well acknowledging that it is, in fact, software development implies a whole bunch of practices are necessary – like version control and testing for example.  And those are hard, right?

Well, they are certainly more work.  But its a bit like insurance - it is a cost you accept in the present to offset or prevent a much more significant potential cost/pain in the future.  In their quintessential book Continuous Delivery, Dave Farley and Jez Humble say: “In software, when something is painful, the way to reduce the pain is to do it more frequently, not less.”

Putting in the extra effort upfront will save you from a lot more pain and effort later on.  Using version control fits into this category.  It can be a bit painful, but it is definitely

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worth it in the end.  Consider this axiom:

Axiom 2: Developing software without version control is like mixing chemicals without reading the labels – sooner or later, it is going to blow up in your face.

Why is this true?  Consider the following questions - how would you answer these if you are not using version control? Read the full article here.

version-control

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