3ac5ed2580
Design record for distributing optional plugins across GE sites: a small mandatory core plus a catalog of optional plugins, packaged as signed versioned artifacts, served from a transport-agnostic read-only shelf (a SharePoint-synced or sneakernet folder - untrusted either way because every decision-bearing byte is signed), verified at adopt AND at every load and migrate. Lean per-site builds stage only chosen plugins into the backend image and SPA bundle. Status PROPOSED. Grounds the design in the real loader/contract/migration/ frontend code and records defects to fix along the way (upgrade-all migrating unadopted folders, enable-without-install, reverse-dep checks blind to unloaded plugins, missing cycle detection and dependency closure, hardcoded plugin imports in the SPA router). Honest on scope: the frontend re-org is the long pole (one core-router change plus per-plugin relocation), not a mechanical move. Phased 0-5 with schema-lean and runtime-JS delivery explicitly deferred.
Architecture Decision Records
Each ADR captures a single architectural decision: the context, the decision itself, the consequences, and the alternatives considered. ADRs are immutable once accepted. Superseded ADRs stay in this folder with a pointer to the newer ADR.
Status definitions
- PROPOSED: drafted, awaiting decision
- ACCEPTED: decision is in effect
- SUPERSEDED: replaced by a later ADR (link forward)
- DEPRECATED: no longer in effect, no replacement
Index
| ADR | Title | Status |
|---|---|---|
| 001 | Asset model is the platform contract | ACCEPTED |
| 002 | Plugin contract versioning (semver) | ACCEPTED |
| 003 | Plugin distribution model | ACCEPTED |
| 004 | Deployment topology (per-site instances) | ACCEPTED |
| 005 | Equipment vs measuringtools plugin scope | ACCEPTED |
| 006 | Plugin collector contract pattern | ACCEPTED |
| 007 | Product versioning and releases | ACCEPTED |
| 008 | Plugin migration ownership (per-plugin chains) | ACCEPTED |
| 009 | Frontend plugin route gating | ACCEPTED |
| 010 | Frontend plugin hook contract | ACCEPTED |
| 011 | Machines rename + modeltypes retyping | ACCEPTED |
| 012 | GE-Enforce manifest ownership in shopdb | ACCEPTED |
| 013 | Plugin catalog, curated shelf, and lean per-site builds | PROPOSED |
Authoring
When proposing a new decision, copy the most recent ADR as a template, increment the number, and update this index. Do not edit accepted ADRs in place; supersede them with a new one.