PLEASE ANSWER G-H!!! scenarios 2 and 3 please thank you! I am stuck on how to do it

this is the data given Major Subprojects / Activites - Activity Identification - Dependency - Duration (weeks)

Product Specifications (P)

- Market research P1 - 2

- Overall Product Specificatios P2 P1 4

- Hardware P3 P2 5

- Software P4 P3 5

Supplier Specificatios (S)

- Hardware S1 P4 5

- Software S2 P4 6

Product Design (D)

- Battery D1 S1 1

- Display D2 S1 2

- Camera D3 S1 1

- Outer Cover D4 D1,D2,D3 4

Product Intergration (i)

- Hardware i1 D4 3

- User Interface i2 D2 4

- Software coding i3 i2 4

- Prototype Testing i4 i1,i3 4

Subcontracting (V)

- Suppliers Selection V1 S1,S2 10

- Contract Negotiation V2 i4,V1 2

a) Draw a project network that includes all the activities with times.

b) Calculate the early and late times for each activity. List those in a table.

c) List all the paths in the network.

d) Identify the activities that are on the critical path for completing the project in the shortest time.

e) Determine the minimum number of weeks for completing the project.

f) Identify slack in the activities that are not on the critical path.

Scenario 2:

You have been asked to study the impact of making two changes as to how the project is organized. The first change involves using dedicated teams that would work strictly in parallel on the activities in each subproject. For example, in subproject P the team would work on P1, P2, P3, and P4 all in parallel. In other words, there would be no precedence relationships within a subproject all tasks within a subproject would be worked on at the same time and each would take the same amount of time as originally specified in Table 1. With this new design, all the subprojects would be done sequentially with P done first, then S, D, I, and finally V.

g) What would be the expected impact on how long it would take to complete the project if this change were made?

Scenario 3

The second change to consider would be to select the suppliers during subproject P and have them work directly with the dedicated teams as described in step 4. This would involve adding an additional activity to subproject P called Supplier Selection and Contract Negotiations (P5) with a duration of 12 weeks. This new activity would be done in parallel with P1, P2, P3, and P4. Subproject S and V would be eliminated from the project. With this new design, all the subprojects would be done sequentially with P done first, then D, and finally I.

h) Draw a project network that includes all the activities with times.

i) Calculate the early and late times for each activity. List those in a table.

j) What would be the expected impact on how long it would take to complete the project if this change were made?

MAJOR SUBPROJECTS/ACTIVITIES ACTIVITY IDENTIFICATION DEPENDENCY DURATION (WEEKS) Product specifications (P) Market research Overall product specifications Hardware Software Supplier specifications (S) Hardware Software Product design (D) Battery Display Camera Outer cover DI, D2, D3 Product integration (I) D4 D2 Hardware User interface Software coding Prototype testing 12 I1, 13 Subcontracting (V) Suppliers selection Contract negotiation Ss SI, S2 14. Vi MAJOR SUBPROJECTS/ACTIVITIES ACTIVITY IDENTIFICATION DEPENDENCY DURATION (WEEKS) Product specifications (P) Market research Overall product specifications Hardware Software Supplier specifications (S) Hardware Software Product design (D) Battery Display Camera Outer cover DI, D2, D3 Product integration (I) D4 D2 Hardware User interface Software coding Prototype testing 12 I1, 13 Subcontracting (V) Suppliers selection Contract negotiation Ss SI, S2 14. Vi