> tpl_com_003
Technical Due Diligence Vendor Questionnaire
Technical due diligence questionnaire assessing vendor engineering maturity, code test coverage, architectural scalability, disaster recovery, and operational hygiene.
Audit questionnaire evaluating vendor CI/CD pipelines, automated testing depth, disaster recovery RTO/RPO metrics, and architectural technical debt.
Important Tech Document Template & Operational Notice
TinyCTO.tv Tech Document Template Notice: This template is a general educational and operational starting point. It is not legal, tax, accounting, investment, procurement, regulatory, security or certification advice. Requirements vary by jurisdiction, organization, contract and risk. Review and adapt it with qualified professionals before relying on it.
Problem Solved
Enterprises outsource mission-critical development without probing the vendor internal development hygiene, discovering unmaintainable code and security risks only after delivery.
When to Use
- •Vetting software development agencies before signing high-value contracts
- •Auditing acquisition targets during technology M&A
- •Benchmarking strategic vendor delivery maturity
When NOT to Use
- •For standardized SaaS vendors where security questionnaires (PRC-002) apply
- •For commodity hardware procurement
3 Template Sections & Structural Outline
Defines formal business drivers and operational scope.
Concrete engineering formulas, criteria tables, and metrics.
Sign-off chains, audit compliance, and maintenance procedures.
Completion Instructions
Independent Review Checklist
- All mandatory sections completed
- No confidential secrets or credentials included
- Sponsor or Lead sign-off obtained
Technical Due Diligence Vendor Questionnaire - Worked Case Study
Fictional Entity: Apex Data / CloudScale SaaS
Production scenario demonstrating end-to-end artifact completion.
- •Concrete architecture blueprints
- •Real-world decision trade-offs
- •Tested formulas and structures
Frequently Asked Questions
What is the most common red flag in vendor engineering due diligence?
Lack of automated CI/CD unit testing and relying entirely on manual manual QA before releases, indicating high defect escape risk.
How should disaster recovery claims be verified?
Require documentation of the most recent live failover drill, actual RTO/RPO metrics achieved, and backup restoration verification logs.
Download Tech Document Pack
Auth RequiredDownload all blank templates, worked scenarios, and verification manifests in a single verified archive.
Authoritative Sources
- OWASP Software Assurance Maturity Model (SAMM)OWASP • OFFICIAL REQUIREMENT
- ISO/IEC 25010 Software Quality Requirements and EvaluationISO • OFFICIAL REQUIREMENT