Student Retention Conceptual Model

Conceptual data models are easy to skip.  In a simple business process conceptual models can appear over simplified.  In the case of student retention the business process is very simple on the surface, which cohort does the student belong in and did they come back year over year?  However, I am learning that the conceptual model is a great way to communicate with colleagues who do not understand database theory or technical jargon.  Also, as part of a more complex ecosystem the conceptual model can more easily answer the question "What do we have in our Warehouse?"

I put the following conceptual model together using One Note.  I am always tempted to look for tools that make things easier and more repeatable, but in this case just having some simple shapes stops the desire to over complicate the model and get into the implementation details too soon.



An easy way to communicate with non-technical stakeholders.

Next, if I start to add other subject areas such as student registration, the conceptual model can start to become quite complex.


Even a conceptual model can start to become complex.

Lastly, it is very likely the conceptual model can change based up on feedback from stakeholders.  As such, there could be several iterations before it is done.

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