back to article Rethink code cohesion

Scott Bain's book Emergent Design: The Evolutionary Nature of Professional Software Development published by Addison Wesley looks at how to deliver and maintain robust, reliable, and cost-effective systems. In this, the second of five Reg Dev extracts, Scott tackles the complex subject of cohesion as a step to building simple …

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Nice article

The most complete description of cohesion I have ever read is in Meilr Page-Jones' ancient classic "The Practical Guide to Structured Systems Design".

As the title suggests, this book somewhat pre-dates the OO idiom, but I still keep it around. Quality never goes out of style.

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The comments on team cohesion...

.. are correct in the coding use of cohesion, but totally wrong in the normal usage of the word:

"1. the act or state of cohering, uniting, or sticking together.

2. Physics. the molecular force between particles within a body or substance that acts to unite them"

To complain about people referring to teams as cohesive because they are cohesive is misleading and nonsensical - it's expecting to people to use a normal word in a specific computer science way out of the context of the computer science world, which is unrealistic and ridiculous.

Other than that, a good article!

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Gates Halo

Yes, a nice article

Makes sense so much that don't present your ideas if looking a job in a huge software company as a developer. I tried and was told that I don't understand objects? Good luck for them getting out of the mess later. Yes, it did work a long time ago and it still works (obejcts or no objects!) to make testable and maintainable systems.

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Evil Graham beat me to it

Just goes to show how old concepts come back again ... I think I remember Tom DeMarco in his little red book on OOAnalysis(or was the OODesign book) - or was it one of his Australian disciples (Rob Thomsett) saying that the principles of structured programming/analysis/design held true in an object world.

Smiley 'cause if ED is only SD with Objects I am in !

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