4 core pillars of due diligence

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Pillar 1: Code Health

• What to Review: Code complexity, duplication, test coverage, and static analysis results.
• Why It Matters: Healthy codebases reduce post-close maintenance risk and accelerate feature delivery.
• Best Practices:
  • Integrate a static analysis tool (e.g., SonarQube) into your CI pipeline.
  • Track code smell trends over time.
  • Enforce unit tests on new features.

Pillar 2: Security Posture

• What to Review: Dependency vulnerabilities, secret management, authentication flows.
• Why It Matters: Security gaps lead to material liabilities and can trigger holdbacks.
• Best Practices:
  • Run automated SAST and DAST tools.
  • Conduct a table-top threat modeling exercise for critical flows.
  • Validate patch management processes.

Pillar 3: Architecture Resilience

• What to Review: Service boundaries, data consistency patterns, scalability limits.
• Why It Matters: An extensible architecture minimizes integration effort and supports growth.
• Best Practices:
  • Diagram your service topology and data flows.
  • Load-test core services under realistic scenarios.
  • Identify single points of failure and mitigation strategies.

Pillar 4: Operational Observability

• What to Review: Logging completeness, metric coverage, alert thresholds.
• Why It Matters: Buyers need confidence that your platform can be monitored and troubleshooted in production.
• Best Practices:
  • Ensure 360° coverage: infrastructure, application, and user-experience metrics.
  • Implement alerting playbooks for common failure modes.
  • Archive logs for forensic analysis.

Putting It All Together By mapping your Tech DD sprint to these four pillars, you:

1. Stay Focused: Allocate time to the highest-value domains.
2. Communicate Clearly: Structure your report into discrete sections that buyers can consume quickly.
3. Scale Repeatably: Template checklists, scorecards, and reporting decks so every engagement follows the same trusted framework.

A pillar-based approach transforms Tech DD from a sprawling audit into a succinct, actionable process. Focus on Code Health, Security, Architecture, and Observability to deliver a buyer-grade review in days, not weeks.

Accelerate your next review with our approach. ^{Get in touch}

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