What if there isn't enough time for thorough testing?

What if there isn't enough time for thorough testing?
Ans. Consider the following scenarios:

- Which functionality is most important from business point of view?
- Which functionality is most visible to the user?
- Which functionality has the largest financial impact?
- Which aspects of the application are most important to the customer?
- Which parts of the code are most complex?
- Which parts of the application were developed in rush?
- Which aspects of similar/related previous projects caused problems?
- What do the developers think are the highest-risk aspects of the application?
- What kinds of problems would cause the worst publicity?
- What kinds of problems would cause the most customer service complaints?
- What kinds of tests could easily cover multiple functionalities?