Change Detection
Schedule Changes
Comparing Previous IMS Snapshot S-38 (Sep 24, 2026) versus Current IMS S-39 (Oct 1, 2026).
Total Changes
37
High Impact
8
Decision Required
2
No Action
22
| Activity | Change | Previous | Current | Variance | Cera Assessment | |
|---|---|---|---|---|---|---|
| Operational Assessment | Finish Date Finish Changes | Oct 20 | Oct 28 | +8d | High | Review |
| Operational Assessment Complete | Milestone Milestone Changes | Oct 20 | Oct 28 | +8d | High | Decision Required |
| Integration Verification | Actual Finish Finish Changes | Sep 24 | Sep 30 | +6d | High | Review |
| External Interface Agreements Executed | Milestone Milestone Changes | Oct 15 | Oct 19 | +4d | High | Review |
| Site Readiness Certified | Milestone Milestone Changes | Oct 20 | Oct 27 | +7d | High | Decision Required |
| Hardware Delivery Confirmation | Finish Date Finish Changes | Oct 15 | Oct 22 | +7d | High | Review |
| Operational Assessment | Near-Critical Entry Critical Path Changes | Float 11d | Float 3d | -8d | High | Review |
| Integration Lab Decommission Plan | Successor Removed Logic Changes | FS → 3.2.18 | No successor | — | High | Review |
| Interface Verification Plan | Total Float Float Changes | 14d | 5d | -9d | Medium | Monitor |
| GFE Interface Integration | Finish Date Finish Changes | Oct 17 | Oct 21 | +4d | Medium | Review |
| Interface Verification Plan | Near-Critical Entry Critical Path Changes | Float 14d | Float 5d | -9d | Medium | Monitor |
| Critical Design Review | Duration Duration Changes | 12d | 16d | +4d | Medium | Monitor |
| 3.2.9 Legacy Data Migration Rehearsal (deleted) | Activity Deleted Deleted Activities | Legacy Data Migration Rehearsal | — | — | Medium | Review |
| Facility Power & HVAC Modifications | Constraint Added Constraint Changes | None | SNET Sep 17 | — | Medium | Monitor |
| Subsystem B Integration | Resource Loading Resource Changes | 4 engineers | 3 engineers | -1 | Medium | Monitor |
| Cera Pilot Governance Framework | Activity Added Added Activities | — | Cera Pilot Governance Framework | — | Low | No Action |
| Monthly Program Management Reviews | Start Date Start Changes | Apr 10 | Apr 11 | +1d | Low | No Action |
| Integration Readiness Checkpoint | Finish Date Finish Changes | Oct 20 | Oct 18 | -2d | Low | No Action |
| Network Accreditation (ATO) | Duration Duration Changes | 49d | 50d | +1d | Low | No Action |
| Sustainment Transition Plan | Total Float Float Changes | 21d | 19d | -2d | Low | No Action |
| Software Code Freeze | Start Date Start Changes | Oct 9 | Oct 10 | +1d | Low | No Action |
| Operational Assessment Report | Finish Date Finish Changes | Nov 11 | Nov 9 | -2d | Low | No Action |
| Operator Training | Duration Duration Changes | 14d | 15d | +1d | Low | No Action |
| Interface Verification Procedures | Total Float Float Changes | 11d | 9d | -2d | Low | No Action |
| Regression Testing | Start Date Start Changes | Dec 1 | Dec 2 | +1d | Low | No Action |
| Software Installation & Configuration | Finish Date Finish Changes | Dec 14 | Dec 12 | -2d | Low | No Action |
| Quarterly Government Program Review | Duration Duration Changes | 2d | 3d | +1d | Low | No Action |
| Test Readiness Review Preparation | Total Float Float Changes | 8d | 6d | -2d | Low | No Action |
| Equipment Rack Installation Prep | Start Date Start Changes | Oct 17 | Oct 18 | +1d | Low | No Action |
| Transition to In-Service Support | Finish Date Finish Changes | Feb 9 | Feb 7 | -2d | Low | No Action |
| End-to-End Thread Integration | Duration Duration Changes | 19d | 20d | +1d | Low | No Action |
| Government OA Acceptance | Total Float Float Changes | 5d | 3d | -2d | Low | No Action |
| O&M Documentation Handover | Start Date Start Changes | Dec 28 | Dec 29 | +1d | Low | No Action |
| Security Hardening & STIG Compliance | Finish Date Finish Changes | Oct 13 | Oct 11 | -2d | Low | No Action |
| System Test Report | Duration Duration Changes | 9d | 10d | +1d | Low | No Action |
| Site Acceptance Test | Total Float Float Changes | 2d | 0d | -2d | Low | No Action |
| External Interface Agreement Execution | Start Date Start Changes | Aug 28 | Aug 29 | +1d | Low | No Action |