Activity Description Activity Time Preceding Activity

1 Problem Definition 3 None

2 System Analysis 4 1

3 Software Configuration 10 2

4 Hardware Development 5 3

5 Software Analysis 9 3

6 Component Acceptance 7 3

7 Design Prototype 15 5, 6

8 Design Database 13 7

9 Develop Prototype 12 7

10 Develop Database 9 8, 9

11 Test Prototype 5 4

12 Test Database 7 11

13 Implement System 6 10, 12

What is early start for Activity 7? Complete forward and backward pass.