Please explain clearly according to book.

Blanchard and Fabrycky (2010). Systems Engineering and Analysis (5th Edition). Published by Prentice Hall. ISBN-10: 013221735X, ISBN-13: 978-0132217354.

1a) Ch2 What is the full meaning of the phrase design for the Life Cycle Reference: Section 2.2 (pages 29-33). Figure 2.2 (page 30).

1b) Ch3 Why is the definition of system operational requirements important? What type of information is included? Reference: Section 3.4 (pages 61-75).

2) Ch4 Refer to Figure 4.1: Program Decimation Tree (page 103). Why is the development of a specification tree important? What inherent characteristics should be included?