Skip to main content
NELLA Labs

How we build · Stage 05

Validate

Prove it works — for users, under load, and against attack.

Typical duration
2–5 weeks
Portal phase
validate
Stage
05 of 08
CRM stages
1

What this stage is for

Acceptance is evidence-based. We test the product against the criteria agreed in Shape, not against a general feeling that it seems fine.

Your part

Run user acceptance testing with real users of the system, and sign acceptance.

Activities

What happens

  • Client-run user acceptance testing with structured cases and evidence
  • Accessibility audit: automated checks plus manual keyboard and screen-reader review
  • Performance and load testing against agreed budgets
  • Security testing, and penetration testing before high-risk production use
  • Data migration rehearsals with reconciliation
  • Disaster-recovery and restore rehearsal

Outputs

What you get

  • UAT results with defect triage and resolution evidence
  • Accessibility conformance report against WCAG 2.2 AA
  • Performance report against the agreed budgets
  • Security findings and remediation record
  • Signed acceptance record

Exit criteria

We do not move on until

Written down so neither side has to rely on a feeling that things seem fine.

  • Acceptance criteria are met and formally signed
  • No open critical or high-severity defects or security findings
  • Rollback and recovery procedures are tested, not merely written

Behind the scenes

How this shows up in our systems

This is not a diagram made for a website. The stage you are reading maps onto literal values in our CRM and the phase label in your client portal.

CRM pipeline stages
UAT / release readinessAcceptance testing and pre-launch evidence.
What you see in the portal
Your project shows the phase "validate", with this stage's purpose and your part written on the project page.

Where it applies

Services that run this stage

Service

Create

UAT, accessibility, performance and security evidence.

Service

Modernise

Migration rehearsals, reconciliation and performance evidence.

Service

Automate

Evaluate against the threshold; report honestly if it is not met.

Service

Scale

Load, failover and restore rehearsals with evidence.

Next step

Talk to us about validate

The Project Architect asks the questions this stage depends on, and tells you which stage your project should actually start at.