During the software development process, at what point can the test process start?

Which of the following describes structure-based (white-box) test case design techniques?

What is important to do when working with software development models?

Which of the following would be appropriate test objectives for user acceptance testing of the first release of a new software product aimed at a general market and built using Agile methods?
(a) To identify as many defects as possible
(b) To maximise code coverage
(c) To ensure the product works as expected
(d) To assess the overall quality of the product
(e) To determine the reliability of the product

Consider the following Pseudo code:

How many minimum lea cases are required to cover 100% Statement coverage and Decision coverage?