题目
Problem
| Activity | Immediately preceding activities |
|---|---|
| A | – |
| B | – |
| C | – |
| D | A |
| E | A |
| F | A, B, C |
| G | C |
| H | G |
| I | D, E, F, H |
| J | I |
| K | I |
| L | I |
| M | L |
(a) Draw the activity network for the project described in the precedence table above, using activity on arc and the minimum number of dummies.
(5)
(b) State which activity is guaranteed to be critical, giving a reason for your answer.
(2)
It is given that each activity in the table takes two hours to complete.
(c) State the minimum completion time and write down the critical path for the project.
(2)
题目中文翻译
| 活动 | 紧前活动 |
|---|---|
| A | – |
| B | – |
| C | – |
| D | A |
| E | A |
| F | A, B, C |
| G | C |
| H | G |
| I | D, E, F, H |
| J | I |
| K | I |
| L | I |
| M | L |
(a) 使用弧表示活动和最少数量的虚活动，画出上面优先级表中描述的项目的活动网络。
(b) 写出保证是关键活动的活动，并给出理由。
已知表中每项活动需要两小时完成。
(c) 写出最小完成时间并写出项目的关键路径。