Oren Eini

aka Ayende Rahien

Oren Eini

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Sep 15 2006

Where data sets breaks down...

time to read 6 min | 1015 words

Another thing that came up in conversation today, a very good example of where the data set model breaks down. Take a look at the following (highly simplified) tables:

(Image from clipboard).png

Each type of employee gets a different salary calculation for overtime per the (current) salary type:

	Global	Hourly	Global + Hourly
Manager	None	15% over hourly rate	15% over hourly rate, to a max of totally 20% of monthly salary over a calendar month
Employee	None	12% over hourly rate	12% precentage
Freelance	10$ hour	9% over hourly rate	10$ hour or 9% over hourly rate, lowest one

Given the above business rules, how do you propose to write the AddOverTime() method using the dataset model in a maintainable fashion? There will be additonal employee types and additional salary types in the future.

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