A potential data model: (It was built for a corporate medical department's medical records. I've already renamed Clinic and Provider to School and Teacher.)
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Here is a potential data model: (It was built for a corporate medical department's medical records. I've already renamed Clinic and Provider to School and Teacher.)
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[[Image:QuestionERDiagram.PNG|left]]
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Authorship and history attributes for Questions could be provided through a new Person ID field in Questionnaire and recursive links.