Data modeling horror stories and different pieces of advice heard over the years make it seem that data modeling for healthcare is impossible to do well. Within the last year I have heard two conflicting approaches to modeling healthcare data – from very well-respected data modelers. One piece of advice was to focus on delivering business value, typically in the form of reports. I was told there is no way that you could ever consider every possible relationship or change that can occur in any business. So, model what you know today, and create ”hooks” into your data that allow for flexible changes over time. The second approach was in an article I read recently. The author advised that because healthcare data is so complex and business rules vary so drastically, 100% of the data should be modeled.
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