Technical due diligence creates evidence that a proposed supplier and solution can meet the required outcome under realistic conditions. It should focus on the risks that would be expensive or difficult to reverse after commitment—not become a generic questionnaire completed without technical discussion.
Review architecture and integration
Understand system boundaries, dependencies, data flows, failure modes, scaling assumptions, interfaces, portability, and the use of proprietary components. Verify how the solution fits existing identity, security, data, and operational environments.
Examine security and resilience
Assess threat modeling, access control, encryption, secrets, logging, vulnerability management, backup, recovery, incident response, and supplier dependencies. Evidence should include how controls are tested and operated—not only a feature list.
Validate engineering and delivery practices
Review code ownership, version control, peer review, automated testing, release management, environments, quality gates, documentation, traceability, and change governance. Meet the team responsible for applying these practices.
Clarify lifecycle and exit
Document maintenance, support levels, updates, end-of-life, data export, source access, knowledge transfer, intellectual property, subcontractors, and transition assistance. A credible exit plan strengthens the relationship by reducing unhealthy dependency.
Strong technology begins with the complete operating context. Connect the disciplines early, validate against real constraints, and design for the lifecycle—not merely the launch.