mirror of
https://dev.azure.com/hugendubel/ISA/_git/ISA-Frontend
synced 2025-12-31 09:37:15 +01:00
f2490b3421
Introduce a comprehensive guide for creating and maintaining ADRs within the ISA-Frontend project. This includes an overview, structure, naming conventions, and process guidelines to ensure consistent documentation of architectural decisions.
139 lines
4.2 KiB
Markdown
139 lines
4.2 KiB
Markdown
# ADR NNNN: <short-descriptive-title>
|
||
|
||
| Field | Value |
|
||
|-------|-------|
|
||
| Status | Draft / Under Review / Approved / Superseded by ADR NNNN / Deprecated |
|
||
| Date | YYYY-MM-DD |
|
||
| Owners | <author(s)> |
|
||
| Participants | <key reviewers / stakeholders> |
|
||
| Related ADRs | NNNN (title), NNNN (title) |
|
||
| Tags | architecture, <domain>, <category> |
|
||
|
||
---
|
||
## Summary (Decision in One Sentence)
|
||
Concise statement of the architectural decision. Avoid rationale here—just the what.
|
||
|
||
## Context & Problem Statement
|
||
Describe the background and the problem this decision addresses.
|
||
- Business drivers / user needs
|
||
- Technical constraints (performance, security, scalability, compliance, legacy, regulatory)
|
||
- Current pain points / gaps
|
||
- Measurable goals / success criteria (e.g. reduce build time by 30%)
|
||
|
||
### Scope
|
||
What is in scope and explicitly out of scope for this decision.
|
||
|
||
## Decision
|
||
State the decision clearly (active voice). Include high-level approach or pattern selection, not implementation detail.
|
||
|
||
## Rationale
|
||
Why this option was selected:
|
||
- Alignment with strategic/technical direction
|
||
- Trade-offs considered
|
||
- Data, benchmarks, experiments, spikes
|
||
- Impact on developer experience / velocity
|
||
- Long-term maintainability & extensibility
|
||
|
||
## Alternatives Considered
|
||
| Alternative | Summary | Pros | Cons | Reason Not Chosen |
|
||
|-------------|---------|------|------|-------------------|
|
||
| Option A | | | | |
|
||
| Option B | | | | |
|
||
| Option C | | | | |
|
||
|
||
Add deeper detail below if needed:
|
||
### Option A – <name>
|
||
### Option B – <name>
|
||
### Option C – <name>
|
||
|
||
## Consequences
|
||
### Positive
|
||
- …
|
||
### Negative / Risks / Debt Introduced
|
||
- …
|
||
### Neutral / Open Questions
|
||
- …
|
||
|
||
## Implementation Plan
|
||
High-level rollout strategy. Break into phases if applicable.
|
||
1. Phase 0 – Spike / Validation
|
||
2. Phase 1 – Foundation / Infrastructure
|
||
3. Phase 2 – Incremental Adoption / Migration
|
||
4. Phase 3 – Hardening / Optimization
|
||
5. Phase 4 – Decommission Legacy
|
||
|
||
### Tasks / Workstreams
|
||
- Infra / tooling changes
|
||
- Library additions (Nx generators, new libs under `libs/<domain>`)
|
||
- Refactors / migrations
|
||
- Testing strategy updates (Jest → Vitest, Signals adoption, etc.)
|
||
- Documentation & onboarding materials
|
||
|
||
### Acceptance Criteria
|
||
List objective criteria to mark implementation complete.
|
||
|
||
### Rollback Plan
|
||
How to revert safely if outcomes are negative.
|
||
|
||
## Architectural Impact
|
||
### Nx / Monorepo Layout
|
||
Describe changes to library boundaries, tags, dependency graph, affected projects.
|
||
### Module / Library Design
|
||
New or modified public APIs (`src/index.ts` changes, path aliases additions to `tsconfig.base.json`).
|
||
### State Management
|
||
Implications for Signals, NgRx, resource factories, persistence patterns (`withStorage`).
|
||
### Runtime & Performance
|
||
Bundle size, lazy loading, code splitting, caching, SSR/hydration considerations.
|
||
### Security & Compliance
|
||
AuthZ/AuthN, token handling, data residency, PII, secure storage.
|
||
### Observability & Logging
|
||
Logging contexts (`@isa/core/logging`), metrics, tracing hooks.
|
||
### DX / Tooling
|
||
Generators, lint rules, schematic updates, local dev flow.
|
||
|
||
## Detailed Design Elements
|
||
(Optional deeper technical articulation.)
|
||
- Sequence diagrams / component diagrams
|
||
- Data flow / async flow
|
||
- Error handling strategy
|
||
- Concurrency / cancellation (e.g. `rxMethod` + `switchMap` usage)
|
||
- Abstractions & extension points
|
||
|
||
## Code Examples
|
||
### Before
|
||
```ts
|
||
// Previous approach (simplified)
|
||
```
|
||
### After
|
||
```ts
|
||
// New approach (simplified)
|
||
```
|
||
### Migration Snippet
|
||
```ts
|
||
// Example incremental migration pattern
|
||
```
|
||
|
||
## Open Questions / Follow-Ups
|
||
- Unresolved design clarifications
|
||
- Dependent ADRs required
|
||
- External approvals needed
|
||
|
||
## Decision Review & Revalidation
|
||
When and how this ADR will be re-evaluated (date, trigger conditions, metrics thresholds).
|
||
|
||
## Status Log
|
||
| Date | Change | Author |
|
||
|------|--------|--------|
|
||
| YYYY-MM-DD | Created (Draft) | |
|
||
| YYYY-MM-DD | Approved | |
|
||
| YYYY-MM-DD | Superseded by ADR NNNN | |
|
||
|
||
## References
|
||
- Links to spike notes, benchmark results
|
||
- External articles, standards, RFCs
|
||
- Related code PRs / commits
|
||
|
||
---
|
||
> Document updates MUST reference this ADR number in commit messages: `ADR-NNNN:` prefix.
|
||
> Keep this document updated through all lifecycle stages.
|