A great way to sharpen our analysis and modeling skills is to continuously address real-world scenarios. A modeling scenario along with suggested solutions appears each month in this Design Challenge column. The scenario is emailed to more than 1,500 modelers up to the challenge. Many of the responses, including my own, are then consolidated into this column. If you would like to become a Design Challenger and submit modeling solutions, please add your email address at www.stevehoberman.com/designchallenge.htm. If you have a challenge you would like our group to tackle, please email me a description of the scenario at email@example.com.
You are responsible for modeling best practices in your company and have noticed three different ways for modeling codes. Consider Gender for example. Gender Code, which can have the values F or M (or possibly 01 or 02), has been modeled without a code lookup, with a code lookup and with a generic code lookup.
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