Why is it important to do interface testing after other tests were completed, i.e. component testing?

Hi,

An interface is composed of features, images, messages, and commands that bridge the gap of a device and an end user. In interface testing, software developers come up with revisions based on the feedback of a user. This method has been regarded as an effective means of perfecting the program due to the fact that the user has a participation in improving the application. It is important to note that for a specific program to be saleable, it must be user-friendly. Hence, the input of a user becomes essential information that developers may utilize to address errors of their product,for these reason interface testing are consider to be important.

Cheers,
Sridevichitthu