Arrow Diagram Method ("ADM")

Test Your Knowledge

Quiz: Unveiling the Arrow Diagram Method

Instructions: Choose the best answer for each question.

1. What is the primary purpose of the Arrow Diagram Method (ADM)?

a) To track project costs. b) To visualize project activities and dependencies. c) To manage project risks. d) To create project budgets.

2. What is the significance of the arrow length in an ADM diagram?

a) It represents the priority of the activity. b) It indicates the cost of the activity. c) It reflects the estimated duration of the activity. d) It shows the number of resources required for the activity.

3. Which of these is NOT a benefit of using the ADM in oil & gas projects?

a) Improved communication and collaboration. b) Identifying potential risks. c) Enhancing project cost control. d) Facilitating project scheduling and planning.

4. What is the "critical path" in an ADM diagram?

a) The shortest sequence of activities in a project. b) The most expensive sequence of activities in a project. c) The sequence of activities that directly impacts the project's overall completion time. d) The sequence of activities with the highest risk.

5. What does ADM stand for?

a) Activity Diagram Method b) Arrow Diagram Method c) Activity Dependency Method d) Analytical Decision Method

Exercise: Applying the Arrow Diagram Method

Scenario: You are managing the construction of an offshore oil rig. You need to plan the project using the ADM. Here are the key activities:

1. Site Preparation: Duration: 4 weeks
2. Foundation Construction: Duration: 8 weeks
3. Platform Installation: Duration: 6 weeks
4. Equipment Installation: Duration: 5 weeks
5. Piping and Wiring: Duration: 7 weeks
6. Testing and Commissioning: Duration: 3 weeks

Dependencies:

• Foundation construction must be completed before platform installation.
• Platform installation must be completed before equipment installation.
• Piping and wiring can be done simultaneously with equipment installation.
• Testing and commissioning can only start after both equipment installation and piping & wiring are finished.

Task:

1. Draw an ADM diagram based on the given activities and dependencies.
2. Identify the critical path and estimate the total project duration.

       Site Preparation (4 weeks)
            ↓
        Foundation Construction (8 weeks) 
            ↓
        Platform Installation (6 weeks)
            ↓
        Equipment Installation (5 weeks) 
         /        \
    Piping and Wiring (7 weeks)       Testing and Commissioning (3 weeks)