(1) Establish a preliminary engineering Network Diagram
(2) Calculate the earliest occurrence time (EET) and the latest occurrence time (LET) of each event, and mark it in the project network diagram.
(3) determine and mark the key paths.
(4) Calculate the maneuver time of non-critical jobs and mark them in the engineering network diagram.
(5) use the mobile time to schedule the progress with time and resource constraints.
When arranging the schedule, you must first ensure that the key jobs are met, and then schedule non-key jobs with the mobile time. That is, key jobs are arranged unconditionally, and non-key jobs are arranged using the maneuver time under the constraints.
Suppose there are the following constraints: "analysis" requires 8 persons, "Test Plan" requires 4 persons, "Outline Design" requires 5 persons, and "Detailed Design" requires 8 persons, "Code" requires l0 persons, "test solution design" requires 2 persons, "product test" requires 3 persons, and "Document Sorting" requires 3 persons, the number of people at the same time must not exceed l0.
A schedule that meets the preceding constraints is shown in the following table:
Job name |
Start Time |
End Time |
Number of students |
Analysis |
0 |
3 |
8 |
Outline Design |
3 |
6 |
5 |
Detailed Design |
6 |
10 |
8 |
Encoding |
10 |
14 |
10 |
Product Testing |
14 |
18 |
3 |
Test Plan |
3 |
5 |
4 |
Test Solution Design |
6 |
9 |
2 |
Document Sorting |
16 |
18 |
3 |