NDT ERP Implementation Timeline: The 30/60/90-Day Go-Live Plan

The exact day-by-day implementation methodology Atlantis NDT has refined across 100+ inspection company rollouts. Discovery in 30 days, integration and training in days 31-60, UAT and go-live in days 61-90. Includes the 7-risk register every implementation should have pinned to the wall.

NDT ERP implementation failures almost always share one root cause: a vague plan with no hard weekly milestones. The 30/60/90 framework forces explicit go/no-go gates at Day 30 (scope locked, sandbox live), Day 60 (integrations green, team trained), and Day 90 (UAT passed, production cutover complete). Each 30-day block has a single dominant workstream: Discovery + Design in days 1-30, Build + Integrate + Train in days 31-60, UAT + Go-Live + Hypercare in days 61-90.

This methodology assumes a typical 10-40 technician inspection company with 1-3 methods (UT/MT/PT being the most common combo), standard financial integration (QuickBooks, Xero, Dynamics 365 BC, or a straightforward SAP/Oracle connection), and a commitment from the executive sponsor to lock scope. Larger or more complex deployments (50+ techs, SAP S/4HANA with custom modules, aerospace NAS 410 plus API 510/570/653 plus ASME Section V reporting, multi-entity) typically extend to 4-6 months but follow the same phased structure.

The goal of Phase 1 is not to build anything. It is to lock scope. We run a 2-day kickoff workshop with your executive sponsor, project manager, and 3-5 SMEs (a Level III, a senior field tech, and 1-2 office admins). By end of week 1 we have a current-state process map, a stakeholder list with RACI, and a risk log. Week 2 is a job lifecycle deep-dive: we walk a real inspection job from RFQ to invoice and identify every data element captured, every hand-off, and every report output. Weeks 3-4 are future-state design, integration architecture, security role modeling, and data migration planning. Phase 1 exit criteria: signed scope document, sandbox tenant provisioned, Phase 1 report templates locked, risk log reviewed with executive sponsor.

Phase 2 is the engineering-heavy block. Weeks 5-6: financial and EAM integrations built and unit-tested in sandbox. Weeks 7-8: train-the-trainer sessions for 2-3 internal champions per function (field, office, Level III review). Weeks 9 (into Phase 3 boundary): champions roll training out to the full team in 3-4 hour role-based sessions. Phase 2 exit criteria: all integrations green in sandbox with production-like data volumes; every user logged in at least once; report templates UAT-ready.

Phase 3 is pass/fail. Weeks 10-11: run 20 real inspection jobs end-to-end through the sandbox, log defects, daily triage. Do not skimp. Weeks 12-13: production provisioning, final data migration rehearsal, go/no-go checklist. Cutover is a weekend event (Friday evening to Monday morning), followed by a 2-week parallel run. Week 13 (Days 86-90) is hypercare: Atlantis Implementation Lead onsite or available in a daily standup. Phase 3 exit criteria: 95% adoption rate on the new ERP by end of Day 90, legacy system retired, report cycle time measurably reduced.

We will build a customized 30/60/90 plan for your team in a 60-minute working session.

What this page covers

Why 30/60/90?
Phase 1: Days 1-30 — Discovery, Design, Scope Lock
Phase 2: Days 31-60 — Build, Integrate, Train
Phase 3: Days 61-90 — UAT, Cutover, Hypercare
Day-by-Day Gantt
Ready to map your 90 days?