This question is about situation when you get access to the DataService and want to quickly explore what kind of functionality (EDM?) is available. Do we have any such tool that could help us to learn services? Something like building class diagram from the code during re-engineering...
LINQPad implements an "OData / WCF Data Services" connector. So, you can explore metadata and query data quikly.
I had the same issue that I wanted our customers to have a visualization of our OData service. There are paid/online variants like http://www.pragmatiqa.com/product_xodata.html but in our case our Security Policy Officer didn't like the fact that our Metadata was being uploaded to an outside party.
I have written a small Windows program that some might find useful. I have tested it some OData services and for us it is quite useful.
https://www.dropbox.com/s/b94n97frnlln70m/OData_Explorer.zip?dl=0
If you have any questions about or problems with the program you can always contact me: LiQuick@gmail.com
来源：https://stackoverflow.com/questions/28274141/tool-to-visualise-odata-webapi-wcf-data-service