Identifier Management Process

[stevencox]

I have APIs with a few datatypes where I'm not clear on the best identifiers to use.

How should I go about finding identifiers for these?

Data Types:

• Text: We have a service that takes two strings, treats them as English MeSH terms and returns articles relating the terms.
• Scores: We have a related service that takes two english terms and returns a score reflecting the "distance" between the words according to a machine learning model. Is there an ontology reflecting concepts like the score?
• Location: We have geo codes expressed as latitude and longitude.
• Time: We have time. For automated service invocation, probably we want time format specific identifiers.