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How the Volumes Work Together

The ETIS framework follows the complete lifecycle of intelligent systems.

The two volumes divide this lifecycle into two major domains of responsibility.

Volume I: Foundations, Engineering Practices, and System Construction

Volume I focuses on engineering systems before sustained operation begins.

Core questions answered include:

  • What are we building?
  • Why are we building it?
  • How should it be engineered?
  • How should AI participation be controlled?
  • How do we prepare systems for release?

Topics include:

  • Foundations
  • Requirements engineering
  • Architecture
  • Planning and estimation
  • AI governance controls
  • Repository-centered engineering
  • Implementation
  • Reviews
  • Release preparation

Volume II: Operations, Governance, and Engineering Stewardship

Volume II focuses on sustaining systems after release.

Core questions answered include:

  • How do we operate systems?
  • How do we sustain trust?
  • How do we govern AI over time?
  • How do we manage incidents?
  • How do we reduce complexity?
  • How do we steward systems over years rather than releases?

Topics include:

  • Postmortems
  • Stabilization
  • Observability
  • Operational readiness
  • Security governance
  • AI delegation
  • Reliability engineering
  • Incident response
  • Release governance
  • Stewardship

The transition between the two volumes reflects one of the central ETIS principles:

A release is not the finish line. A release is an organizational commitment to ongoing stewardship.