I was completing one of the missions on Pega Academy and came across this experssion "pyIsMobile" and "pyIsNotMobile". Although they were pretty self explanatory, as a beginner of this field I thought a small cheat sheet for widely used experssions would be useful but I couldn't find any on the platform. I f there is one can someone please help me find it.
I agree that a best practice when creating a data model is specific and clear naming conventions. Please refer to the details provided in the link below for how you may visualize the data model in your Pega applications.