Credential Engine Schemas

@bredd Credential Engine has three schemas.  See attached.  Each of them can be identified with your visual under 1, 2 and 3. Let me know if you have any questions.  Thank you!

[
[CredentialEngineSchemas.txt](https://github.com/EdMatrix/edmatrix.github.io/files/4726482/CredentialEngineSchemas.txt)
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