What should be my agenda?

- Finding all the bugs or at least most of it?
- Comparing with standards or oracles?
- To seek client satisfaction?
- To find out application limitations?
- To make sure that application will not crash in some particular scenarios?
- To improve programmers work?
- To ensure user satisfaction?
- To make sure my application have something more to offer than other existing ones, or it is more reliable?
- Or it is all of them, or even more?

And I need to pick what it will be and what more should I ignore.