i. Compatibility Testing is a type of Software testing to check whether your software is capable of running on different hardware, operating systems, applications, network environments.

ii. It is a type of the Non-functional testing.

iii. There are two types of compatibility testing:

• Forward Compatibility.

• Backward Compatibility.

Forward Compatible:

If something is forward compatible, it will work with future versions of the software.

Backward Compatible:

If something is backward compatible, it will work with previous versions of the software.

E.g.

• Cutting text from a web page and pasting it into document opened in your word processor.

• Saving accounting data from one spreadsheet program and then loading into a completely different spreadsheet program.