Request1:
The Project WBS is
1. Time Management System Project
 1.1. Initiation
  1.1.1. Create Project Charter
  1.1.2. Inform Stakeholder
  1.1.3. Project Meeting
  1.1.4. Create Project Document
 1.2. Defination
  1.2.1. Create Customer Requirement Document
  1.2.2. Create Business Requirement Document
  1.2.3. Create Vision and scope Document
  1.2.4. Create Business Contraints
  1.2.5. Create Design Document
  1.2.6. Create Software Requirement Specification Document (SRS)
 1.3. Solution
  1.3.1. Design Software Environment
  1.3.2. Create Use-case diagram
   1.3.2.1. Function User Maintenance
    1.3.2.1.1. Create user
    1.3.2.1.2. Editing user
    1.3.2.1.3. Granting and Revoking access user
    1.3.2.1.4. Deleting user
   1.3.2.2. Function Timesheet Report and Approval
    1.3.2.2.1. Report Daily Report
    1.3.2.2.2. Report Weekly Appoval
   1.3.2.3. Function Project List Maintenance
    1.3.2.3.1. Creating Projects
    1.3.2.3.2. Editing projects
    1.3.2.3.3. Active/Deactive projects
   1.3.2.4. Function Report
    1.3.2.4.1. Function for Project
    1.3.2.4.1. Function for User
  1.3.3. Design UX/UI 
   1.3.3.1. Function User Maintainance
   1.3.3.2. Function Timesheet Report and Approval
   1.3.3.3. Function List Maintainance
   1.3.3.4. Functoin Report
  1.3.4. Review and change if have SRS
  1.3.5. Create Test plan Document
  1.3.6. Customer approvement
 1.4. Construction
  1.4.1. Coding
   1.4.1.1. Function User Maintainance
    1.4.1.1.1. Creating User
    1.4.1.1.2. Editing Use
    1.4.1.1.3. Granting and revoking user
    1.4.1.1.4. Deleting user
   1.4.1.2. Function Timesheet report and approval
    1.4.1.2.1. daily report
    1.4.1.2.2. weekly approval
   1.4.1.3. Function Project List Maintenance 
    1.4.1.3.1. Creating project 
    1.4.1.3.2. Editing project
    1.4.1.3.3. Active and Deactive projects
   1.4.1.4. Function Report 
    1.4.1.4.1. report by Project
    1.4.1.4.2. report by User
  1.4.2. Testing
    1.4.2.1. Function User Maintainance
    1.4.2.2. Function Timesheet report and approval
    1.4.2.3. Function Project List Maintainance
    1.4.2.4. Fincion Generate report by user or project
  1.4.3. Deploy Staging
 1.5. Transition
  1.5.1. Customer Acceptance Test
  1.5.2. Create Product Manual
  1.5.3. Transfer Product Documents
 1.6. Termination
  1.6.1. Closing Project
Request2:
1. The Deliverable is Project Document and the milestone is Initiation; Explanation: Docment have project information, PM, BA, stakeholder inform.
2. The Deliverable is Software Requirement Specification (SRS) document and the milestone is Solution; Explanation: Document have Design, use-case diagram, test plan...
3. The Deliverable are Final SRS and customer approval and the milestone is Design; Explanation: Specific information about project to launch contruction and customer approvement.
4. The Deliverable is Staging Product and the milestone is Constructing; Explaination: stagging project for customer review
5. The Deliverable is Product Ducuments and Manual and the milestone is Closing; Explanation: Closing the activities of project
Request 3:
All the paths:
 path 1: Start -> A -> B -> C -> G -> End
 path 2: Start -> D -> B -> C -> G -> End
 path 3: Start -> D -> E -> F -> G -> End
 path 4: Start -> D -> H -> I -> End
The Critical path: Start -> D -> H -> I -> End
The Project duration is 19 months
Early Start:
 early start (Start) = month 0
 early start (A) = month 0
 early start (B) = month 5
 early start (C) = month 8
 early start (D) = month 0
 early start (E) = month 5
 early start (F) = month 9
 early start (G) = month 11
 early start (H) = month 5
 early start (I) = month 10
 early start (End) = month 19
Float
 float (Start) = 0 month
 float (A) = 4 months
 float (B) = 3 months
 float (C) = 3 months
 float (D) = 0 month
 float (E) = 2 months
 float (F) = 2 months
 float (G) = 2 months
 float (H) = 0 month
 float (I) = 0 month
 float (End) = 0 month

Request 4:
Solution 1: Fast tracking
 - This solution we can start task G overlaps task C and task F 1 month when task C just completed and start task I overlaps task H 3 months. The project duration will finish 3 months sooner
 - The solution will increase risks of project, need more attention of team members.
Solution 2: Crashing
- This solution need team member overtime or add more people or reward when task G complete 1 month sooner and task I complete 3 months sooner
- The solution will increase more cost of project. But maybe the solution can antiproductive if member overtime too much or new members add to project does not have needed knowledge.
Request 5:
Planned value (PV) = 5000 USD
after 5 months, AC = 6500 USD and 80% scope project is completed 
-> Earned Value = 5000 * 80% = 4000
-> CPI = EV / AC = 4000 / 6500 = 0.62
-> SPI = EV / PV = 4000 / 5000 = 0.8
The project is over budget and behind schedule
The project may need to review retrospective to enhance performance of teams, and may review the scope of project.