A great way to sharpen our analysis and modeling skills is to continuously address real-world scenarios. A modeling scenario with suggested solutions appears each month in this Design Challenge column. The scenario is emailed to more than 1,000 modelers. The responses, including my own, are then consolidated into this column. If you would like to become a Design Challenger and have the opportunity to 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 .

A global direct marketing company has hired you to be their data warehouse data modeler. You need to model one of their most important subject areas: address. You know the following:

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