What are the criteria for evaluating a programmer?

Question

Android

We need to develop an application for Android. How to draw up the criteria for the effectiveness of the developer? How to understand that it is working effectively?
Ideas:
1) Break the work into parts and time periods. By a certain time, a specific functionality must be implemented according to the TOR.

Answer 1

Design

Answer 2

The approach can be functional and temporary:
1. Functional: immediately make a workable application. And expand its functionality. 1 stage - 1 function.
Pros: test the application at every stage. If there is a bug, fix it quickly.
Cons: waste time on tests.
2. Temporary: you immediately make an application according to the TOR, from beginning to end.
Pros: spend little time because no tests.
Cons: during the development process, you can make a lot of mistakes, as a result - an inoperable application. Start fixing, half of the code will have to be rewritten.

Answer 3

If you are making an application by hiring a programmer, then the option "payment by stages" and "payment after the fact ...". Look, test for errors, correctness of work, then only payment ...