| ID | Task | Optimistic Duration (days) | Most Likely Duration (days) | Pessimistic Duration (days) | PERT Expected Duration (days) | Predecessor(s) (ID) |
| 1 | TECHNOLOGY REFRESH PROJECT |
| 2 | Initiating |
| 3 | Meet with key stakeholders | 1 | 2 | 3 |
| 4 | Finalize statement of work | 3 | 5 | 9 | | 3 |
| 5 | Secure project team leads | 3 | 5 | 13 | | 3 |
| 6 | Finalize stakeholder register | 2 | 4 | 7 | | 5 |
| 7 | Develop project charter | 10 | 16 | 24 | | 3 |
| 8 | Finalize project charter | 1 | 2 | 4 | | 4,7 |
| 9 | Planning |
| 10 | Scope Planning |
| 11 | Requirements |
| 12 | Develop/finalize functional requirements | 5 | 16 | 24 | | 4 |
| 13 | Develop/finalize hardware requirements | 5 | 12 | 20 | | 12 |
| 14 | Develop/finalize software requirements | 5 | 10 | 14 | | 12 |
| 15 | Develop/finalize requirements traceability matrix | 4 | 9 | 17 | | 12,13,14 |
| 16 | Finalize project deliverables | 2 | 2 | 3 | | 15,8 |
| 17 | Develop scope statement | 4 | 6 | 16 | | 16 |
| 18 | Finalize/Update WBS | 2 | 3 | 8 | | 17 |
| 19 | Schedule (Time) and Cost Planning |
| 20 | Finalize hardware/software costs | 6 | 12 | 18 | | 13,14 |
| 21 | Update activities and duration estimates | 2 | 10 | 18 | | 18,20 |
| 22 | Human Resource Planning |
| 23 | Finalize resource requirements | 4 | 8 | 19 | | 21 |
| 24 | Finalize project costs | 4 | 6 | 12 | | 21,23 |
| 25 | Identify training requirements | 2 | 4 | 5 | | 23 |
| 26 | Complete training activities | 6 | 12 | 14 | | 25 |
| 27 | Quality Planning |
| 28 | Determine impacted quality processes | 2 | 3 | 4 | | 15 |
| 29 | Finalize quality management plan | 2 | 6 | 8 | | 28,23 |
| 30 | Risk Planning |
| 31 | Update project risks | 10 | 10 | 18 | | 23 |
| 32 | Draft risk register | 2 | 3 | 4 | | 31 |
| 33 | Finalize risk management plan | 2 | 3 | 4 | | 32 |
| 34 | Finalize Project Plan |
| 35 | Finalize communications management plan | 2 | 3 | 4 | | 23 |
| 36 | Finalize procurement management plan | 2 | 10 | 12 | | 16 |
| 37 | Finalize stakeholder management plan | 2 | 2 | 2 | | 6,23 |
| 38 | Finalize project schedule/cost baseline | 2 | 10 | 18 | | 24 |
| 39 | Finalize project plan | 2 | 5 | 16 | | 29,36,35,37,38 |
| 40 | Obtain approval for project plan | 2 | 4 | 10 | | 33,39 |
| 41 | Executing |
| 42 | Hardware |
| 43 | Procure hardware from suppliers | 8 | 10 | 22 | | 36 |
| 44 | Software |
| 45 | Obtain software OS licenses | 6 | 12 | 20 | | 36 |
| 46 | Obtain software application licenses | 6 | 12 | 20 | | 36 |
| 47 | Pilot Testing |
| 48 | Setup test area | 2 | 3 | 4 | | 40 |
| 49 | Load software onto pilot machines | 5 | 2 | 3 | | 45,46,48,43 |
| 50 | Validate functionality | 3 | 5 | 9 | | 49 |
| 51 | Deployment |
| 52 | Configure production hardware | 10 | 18 | 28 | | 26,50,67,63 |
| 53 | Deploy production hardware | 12 | 16 | 18 | | 52 |
| 54 | Load software to deployed hardware | 10 | 16 | 30 | | 53 |
| 55 | Testing |
| 56 | Validate startup on deployed hardware | 4 | 6 | 10 | | 54 |
| 57 | Perform OS testing | 4 | 8 | 10 | | 56 |
| 58 | Perform application testing | 4 | 13 | 18 | | 57 |
| 59 | Obtain formal sign-off from users | 6 | 14 | 22 | | 58 |
| 60 | Monitoring and Controlling |
| 61 | Formal Customer Review 1 |
| 62 | Hold formal customer review after project plan approval | 1 | 2 | 2 | | 40 |
| 63 | Update project plan | 4 | 8 | 10 | | 62 |
| 64 | Formal Customer Review 2 |
| 65 | Obtain updates regarding key deliverables from project team | 6 | 12 | 18 | | 50 |
| 66 | Hold formal customer review after pilot testing | 1 | 2 | 2 | | 50,65 |
| 67 | Update project plan | 4 | 8 | 10 | | 66 |
| 68 | Closing |
| 69 | External |
| 70 | Finalize procurement with suppliers | 5 | 12 | 23 | | 59 |
| 71 | Customer Approval |
| 72 | Hold final customer review | 1 | 2 | 2 | | 59 |
| 73 | Prepare/submit final customer report | 4 | 6 | 8 | | 59 |
| 74 | Audit against contractual deliverables | 3 | 6 | 8 | | 72,73 |
| 75 | Obtain final customer approval | 2 | 3 | 4 | | 74 |
| 76 | Internal |
| 77 | Hold lessons learned meeting | 1 | 1 | 1 | | 75,70 |
| 78 | Update final internal report | 4 | 6 | 8 | | 77 |
| 79 | Hold project team celebration event | 1 | 1 | 1 | | 78 |