Testing the application designed for Higher Version against lower version is called backward compatibility.
This is tricky, backward compatibility sometimes is positive and sometimes negative.
If your application is designed for Windows vista, it’s expected to work in XP. Same may not be possible with Win 98. Testing the application against Win XP (could be positive) and against win 98(could be negative).
To resolve this ambiguity you may have to understand the application architecture and OS (XP, 98) architecture and thus judge the application SHALL work or NOT with XP/98.Share This: