Change Request Process
Scope change request from initiation through impact assessment to approval
Project ManagementLead Time
140.0h
Cycle Time
10.0h
Wait Time
130.0h
PCE
6.4%
Stages
7
Bottleneck
Stakeholder Review
Value-Add vs Non-Value-Add
Value-Add (VA)
An activity is value-add if it meets all three criteria:
- The customer is willing to pay for it
- It transforms the product or service
- It is done right the first time
Examples: Assembly, diagnosis, treatment, coding, machining, testing
Non-Value-Add (NVA)
Activities that consume time or resources but don't add value from the customer's perspective:
- Waiting — queues, approvals, batching delays
- Transport — moving materials or information
- Motion — unnecessary movement of people
- Rework — correcting defects or errors
- Over-processing — doing more than required
Note: Some NVA is necessary (compliance, safety). Target unnecessary NVA first.
Process Timeline
Value-Add vs Non-Value-Add
Bottleneck Analysis
Stage Efficiency
| # | Stage | Cycle (h) | Wait (h) | VA | Resource | Defect % | Efficiency |
|---|---|---|---|---|---|---|---|
| 1 | Change Request Submitted | 0.5 | 2.0 | VA | Requestor | 15.0% | 20.0% |
| 2 | PM Review & Log | 0.25 | 8.0 | VA | Project Manager | 5.0% | 3.0% |
| 3 | Impact Assessment | 4.0 | 24.0 | VA | Technical Lead | 10.0% | 14.3% |
| 4 | Cost & Schedule Estimate | 2.0 | 16.0 | VA | Estimator | 8.0% | 11.1% |
| 5 | Stakeholder Review | 1.0 | 48.0 | NVA | Steering Committee | 3.0% | 2.0% |
| 6 | Approval / Rejection | 0.25 | 24.0 | VA | Sponsor | 2.0% | 1.0% |
| 7 | Implementation Planning | 2.0 | 8.0 | VA | Project Manager | 5.0% | 20.0% |