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 column. The scenario is emailed to more than 1,000 modelers. The responses 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 me@stevehoberman.com.

To start with, I would ask each of them for their definition of a logical data model (LDM).

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