Comparing APIs - CWS vs AppWorks vs CS REST API 1.0

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Hello:

Could someone please post the differences between these three APIs? What services are available with CS 10? are there more available w/CS 10.5?

I have read this, https://developer.opentext.com/webaccess/#url=/awd/forums/questions/1130441#r1130448, which was helpful, but would be more useful to display a grid showing cs10/cs10.5 for CWS calls, REST API 1.0 calls and AppWorks calls (6 columns) and then having rows showing features, then putting checkmarks in the grid. I want to use REST (AppWorks?) since they are presumably simpler than CWS, but I am completely confused by which of these 3 products does what. We need to have CRUD capabilities for workflow and attached docs. Will any/all of the above do this?

I could use this ASAP, since we need to decide on a direction for our project right now.

thank you