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Iterative Vs Incremental
"IterativeDevelopment means:
I write loads of stuff that's a complete mess
I go through it throwing out the irrelevant drivel, expanding on the important bits, and sorting out the structure
I go through it again now I can start to see the shape of it, sorting it some more
I go through it yet again, etc, until it's GoodEnough
IncrementalDevelopment means:
I write part one
I write part two
I write part three, etc, until the book is finished
[...]
So in practice, at least in XP practice, your development is both incremental and iterative.
-- StephenHutchinson
The danger is when people confuse the two. I saw a 200 person project iterating on their requirements (allowing arbitrary amount of change) when they should have been incrementing through their requirements, and incrementing & iterating (as you describe) through their design. They were, of course, not making any progress. Also saw a 100 person project claiming they were iterating through their entire novel, when in fact they were doing neither - they were stuck in the mud. They needed to get at least some part working first so they could tell they were moving - once again, needed incrementing as a base.
-- AlistairCockburn"
Image de la miniature : http://www.applitude.se/images/inc_vs_ite.png
lun. 19 oct. 2015 07:17:42 CEST -
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link
- http://c2.com/cgi/wiki?IterativeVsIncremental
programmation génie-logiciel
I write loads of stuff that's a complete mess
I go through it throwing out the irrelevant drivel, expanding on the important bits, and sorting out the structure
I go through it again now I can start to see the shape of it, sorting it some more
I go through it yet again, etc, until it's GoodEnough
IncrementalDevelopment means:
I write part one
I write part two
I write part three, etc, until the book is finished
[...]
So in practice, at least in XP practice, your development is both incremental and iterative.
-- StephenHutchinson
The danger is when people confuse the two. I saw a 200 person project iterating on their requirements (allowing arbitrary amount of change) when they should have been incrementing through their requirements, and incrementing & iterating (as you describe) through their design. They were, of course, not making any progress. Also saw a 100 person project claiming they were iterating through their entire novel, when in fact they were doing neither - they were stuck in the mud. They needed to get at least some part working first so they could tell they were moving - once again, needed incrementing as a base.
-- AlistairCockburn"
Image de la miniature : http://www.applitude.se/images/inc_vs_ite.png
lun. 19 oct. 2015 07:17:42 CEST -
-
link
- http://c2.com/cgi/wiki?IterativeVsIncremental
programmation génie-logiciel
Ce journal est basé sur Ginger, un gestionnaire de lien minimaliste développé dans le cadre d'un stage de perfectionnement. Pour plus d'informations, consulter le wiki consacré à mes projets personnels.