Refactoring Databases: Evolutionary Database Design
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Pramod Sadalage is the co-author of the 2007 Jolt Productivity Award winning "Refactoring Databases: Evolutionary Database Development" and author of "Recipes for Continuous Database Integration". Pramod works as a DBA and developer at ThoughtWorks on large custom-developed applications which use agile. He has pioneered the practices and processes of agility in the database.
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Refactoring Databases
by
John Owens
A change is only required within a computer system when the existing system does not meet a business need or a business need changes or a new business need occurs.
So all such needs are driven from outside the system. If the overall data/information structure of the enterprise does not meet this new need then it must be amended. If that part of the structure supported by the computer system is amended then the system must be amended to make it support the structure.
So change is always driven by the information needs of the business. Systems must change to support the business. They are not the business, they do not drive change.
Re: Refactoring Databases
by
Jim Arnold
I don't see any conflict here; the users request a feature, the developers need to change the system in order to support the new feature. Refactoring is driven by change, and its goal is to reduce the cost of change.
Re: Refactoring Databases
by
Fadzlan Yahya
Did you watched the presentation? What the presenter proposing are methods to cope with changes that are driven by business needs.
I understand your concern if you are talking about refactoring per se, without any external events that triggers it, just for the sake of refactoring.
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