program evaluation

Program evaluation is a valuable tool for program managers who are seeking to strengthen the quality of their programs and improve outcomes for the clients they serve. Program evaluation answers basic questions about a program's effectiveness, and evaluation data can be used to improve program services.

I think another important reason is that an evaluation also help to decide if it is the best use of the resources of an organization.

Great

Absolutely ?

I see, apart from it, I guess the data can also show which parts need to be improved, right?

If so, the data can also demonstrate you why the program work, which part(s) of the program is/are relatively more effective.

If the data show the program work, then…

Well… there are other reasons as well. For example, it can provide data to see if a program work ?

Thanks. Is it the only reason?

I think because it can give you information about how to improve your program and services to clients.