Answer / aruna tummala

Testing done with the previous version of the software as
refference and finding errors/defects is backward
compatibility testing

Answer / ravikanth

Testing that ensures that new version of the product
continues to work with the assets created from older
product is known as Backward compatibility testing. For
example, consider a simple case of Excel worksheet. Suppose
you have created a very complex excel sheet to track your
projects schedule, resources, expenses, future plans etc.
Now if you upgrade from Excel 2000 to Excel 2003 and some
of the functions stop working, you will not be delighted
with this.

So crux of the Backward compatibility testing is to make
sure that assets created using older version should
continue to work.

Answer / lakshmanaraj bg

Testing whether the system is compatible with other systems with which it should communicate.
Compatibility testing measures how well pages display on different clients.

For example: browsers, different browser version, different operating systems, and different machines.

At issue are the different implementations of HTML by the various browser manufacturers and the different machine platform display and rendering characteristics.

Also called browser compatibility testing and cross-browser testing.

Compatibility is a product feature and can have different levels of compliance.

Can some one help me writing a manual test case for email applications like yahoo i need for www.everonn.com

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