ZAIXOS Engineering Platform — Planning Index

Document type: Extraction Planning Authority Index
Version: 1.0 · Phase: 12-4
Status: Permanent planning authority — execution plan only
Parent: PLATFORM_INDEX.md

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Purpose

This index is the entry point for Repository Extraction Planning — how embedded ZEP in Dental Clinic ROS becomes standalone repository zaixos-engineering-platform.

Architecture, product, governance, and technical specs are complete. This layer plans execution only — no implementation in Phase 12-4.

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Start here

Role	Document
Platform Architect	REPOSITORY_EXTRACTION_PLAN.md
Platform Developer	EXTRACTION_SEQUENCE.md · MIGRATION_MATRIX.md
Product integrator (Dental Clinic)	CONSUMER_INTEGRATION_PLAN.md
Release owner	RELEASE_PLAN.md · VERSION_TRANSITION_PLAN.md
QA / validation	VALIDATION_PLAN.md
Incident / rollback	ROLLBACK_PLAN.md
Phase executor (12-5–12-9)	IMPLEMENTATION_PHASE_PLAN.md

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Planning suite (Phase 12-4)

#	Document	Topic
1	REPOSITORY_EXTRACTION_PLAN.md	Complete extraction strategy
2	EXTRACTION_SEQUENCE.md	Order, first/last/never moves
3	REPOSITORY_LAYOUT_PLAN.md	Target repository structure
4	PACKAGE_SPLIT_PLAN.md	Current repo → platform repo mapping
5	MIGRATION_MATRIX.md	Every asset: source, destination, phase, validation, risk
6	CONSUMER_INTEGRATION_PLAN.md	Dental Clinic as Consumer #1
7	VERSION_TRANSITION_PLAN.md	ERP v1 → ZEP v1 → future
8	VALIDATION_PLAN.md	Before / during / after checkpoints
9	ROLLBACK_PLAN.md	Rollback strategy
10	RELEASE_PLAN.md	Platform and consumer release order
11	IMPLEMENTATION_PHASE_PLAN.md	Phases 12-5 through 12-9

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Planning models (authoritative locations)

Model	Document
Repository Split Graph	REPOSITORY_EXTRACTION_PLAN.md
Extraction Dependency Graph	EXTRACTION_SEQUENCE.md
Migration Timeline	IMPLEMENTATION_PHASE_PLAN.md
Consumer Migration Timeline	CONSUMER_INTEGRATION_PLAN.md
Version Transition Timeline	VERSION_TRANSITION_PLAN.md
Release Timeline	RELEASE_PLAN.md
Rollback Timeline	ROLLBACK_PLAN.md
Validation Timeline	VALIDATION_PLAN.md
Ownership Transition Matrix	MIGRATION_MATRIX.md
Package Transition Matrix	PACKAGE_SPLIT_PLAN.md

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Authority hierarchy

Governance (12-1A) — unchanged by this phase
Technical Architecture (12-3) — unchanged by this phase
Extraction Planning (12-4) — THIS LAYER
Implementation (12-5+) — not started

Rule: Phase 12-4 introduces no new architectural decisions. Execution choices only (order, checkpoints, rollback, ownership transition timing).

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Approved implementation sequence (after planning)

Phase	Title	Type
12-5	Repository Scaffold	Structure specification + empty repo
12-6	Platform Extraction	Controlled asset move
12-7	Consumer Migration	Dental Clinic → platform consumer
12-8	Platform Validation	Parity + compatibility
12-9	Platform Freeze	ZEP v1.0.0 GA

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Planning Index v1.0 — Phase 12-4 complete. Phase table: PLATFORM_INDEX.md.