Given the project activity information provided below:a) Draw the project network.b) What are the ES, EF, SL, LS, and LF for each of the nodes in the network? (Given ID, DUR, and Description.)c) What is the critical path?| Activity (ID) | Description | Preceding Activity | Activity Time (DUR) ||---------------|-----------------|--------------------|---------------------|| 1 | Requirements | None | 18 || 2 | Architecture | 1 | 10 || 3 | Design C | 2 | 15 || 4 | Design S | 2 | 18 || 5 | Design M | 2 | 16 || 6 | Coding U | 3 | 8 || 7 | Coding T | 4,5 | 9 || 8 | Coding N | 5 | 7 || 9 | Integration I | 6,7 | 8 || 10 | Integration J | 7,8 | 9 || 11 | System | 9,10 | 10 |To analyze the project:- **ES (Earliest Start)**: The earliest time an activity can start.- **EF (Earliest Finish)**: The earliest time an activity can finish.- **SL (Slack)**: The amount of time that an activity can be delayed without causing a delay to subsequent tasks or the project completion date.- **LS (Latest Start)**: The latest time an activity can start without delaying the project.- **LF (Latest Finish)**: The latest time an activity can finish without delaying the project.**Critical Path**: The sequence of activities that determines the shortest time possible to complete the project. Activities on the critical path have zero slack.

Given: Table for Project activityTaskPredecessorsTime1…

Given the project activity information provided below: a) Draw the project network. b) What are the ES, EF, SL, LS, and LF for each of the nodes in the network? (Given ID, DUR, and Description.) c) What is the critical path? Activity (ID) Description Requirements Architecture 1 2 3 4 5 6 7 8 9 10 11 Design C Design S Design M Coding U Coding T Coding N Integration I Integration J System Preceding Activity None 1 2 2 2 3 4.5 5 6,7 7,8 9,10 Activity Time (DUR) 18 10 15 18 16 8 9 7 8 9 10

Given the project activity information provided below: a) Draw the project network. b) What are the ES, EF, SL, LS, and LF for each of the nodes in the network? (Given ID, DUR, and Description.) c) What is the critical path? Activity (ID) Description Requirements Architecture 1 2 3 4 5 6 7 8 9 10 11 Design C Design S Design M Coding U Coding T Coding N Integration I Integration J System Preceding Activity None 1 2 2 2 3 4.5 5 6,7 7,8 9,10 Activity Time (DUR) 18 10 15 18 16 8 9 7 8 9 10

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Q: predecessors

Question

Given the project activity information provided below:

a) Draw the project network.

b) What are the ES, EF, SL, LS, and LF for each of the nodes in the network? (Given ID, DUR, and Description.)

c) What is the critical path?

| Activity (ID) | Description | Preceding Activity | Activity Time (DUR) |
|---------------|-----------------|--------------------|---------------------|
| 1 | Requirements | None | 18 |
| 2 | Architecture | 1 | 10 |
| 3 | Design C | 2 | 15 |
| 4 | Design S | 2 | 18 |
| 5 | Design M | 2 | 16 |
| 6 | Coding U | 3 | 8 |
| 7 | Coding T | 4,5 | 9 |
| 8 | Coding N | 5 | 7 |
| 9 | Integration I | 6,7 | 8 |
| 10 | Integration J | 7,8 | 9 |
| 11 | System | 9,10 | 10 |

To analyze the project:

- **ES (Earliest Start)**: The earliest time an activity can start.
- **EF (Earliest Finish)**: The earliest time an activity can finish.
- **SL (Slack)**: The amount of time that an activity can be delayed without causing a delay to subsequent tasks or the project completion date.
- **LS (Latest Start)**: The latest time an activity can start without delaying the project.
- **LF (Latest Finish)**: The latest time an activity can finish without delaying the project.

**Critical Path**: The sequence of activities that determines the shortest time possible to complete the project. Activities on the critical path have zero slack.

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