PERT CPM Calculating ES EF LS and LF indicated on the diagram
PERT CPM Calculating ES EF LS and LF indicated on the diagram
Homework
This homework assignment is based on Swiss (2011), Chapter 1 – Planning Tools: PERT/CPM.
Application – CPM
For the following problems, show the diagram with ES, EF, LS, and LF indicated on the diagram.
1.
| Activities | Predecessors | Duration |
| A | — | 3 |
| B | — | 5 |
| C | A | 2 |
| D | B | 2 |
| E | C, D | 1 |
| F | E | 4 |
| G | F | 5 |
2.
| Activities | Predecessors | Duration |
| A | — | 5 |
| B | A | 3 |
| C | A | 2 |
| D | A | 1 |
| E | B, C, D | 4 |
| F | E | 5 |
| G | E | 6 |
| H | E | 2 |
3.
| Activities | Predecessors | Duration |
| A | — | 2 |
| B | — | 4 |
| C | — | 3 |
| D | A, B, C | 3 |
| E | A, B, C | 1 |
| F | D, E | 4 |
| G | F | 4 |
| H | G | 2 |
| I | G | 3 |
Application 2 – PERT
For the following problems, diagram and then show ES, EF, LS, LF, and slack on a separate table.
7.
| Activities | Predecessors | Duration | ||
| o | m | p | ||
| A | — | 1 | 14 | 15 |
| B | — | 4 | 6 | 8 |
| C | A, B | 1 | 8 | 15 |
| D | A, B | 9 | 9 | 9 |
| E | C | 4 | 9 | 26 |
| F | C | 1 | 2 | 9 |
| G | C | 3 | 4 | 11 |
| H | D | 7 | 9 | 11 |
| I | G, H | 2 | 3 | 40 |
| J | E, F | 5 | 5 | 5 |
| K | I, J | 5 | 6 | 13 |
