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diana/specification/02-architecture-decisions.md
2026-07-31 07:17:00 +02:00

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# Architecture Decisions (ADRs) — Diana Website (v1)
This file records stable architectural decisions and their rationale. Items here should remain valid even as implementation details evolve.
## ADR-001 — Static website as the delivery model
- **Status**: Accepted
- **Context**: Site is primarily informational/lead-capture, needs strong SEO, and is expected to change infrequently.
- **Decision**: Build as a **static website** (pre-rendered HTML) suitable for hosting behind a Caddy reverse proxy.
- **Rationale**:
- SEO-friendly (fully indexable content)
- Fast and reliable on mobile
- Low maintenance
- **Alternatives considered**:
- WordPress/CMS: easier editing but higher maintenance/security surface
- SPA-only: SEO/performance risks and complexity
- **Consequences**:
- Contact form delivery must be handled via a static-compatible approach (see ADR-002)
## ADR-002 — Form backend: existing AWS service
- **Status**: Partially accepted (details pending)
- **Context**: The site must collect quote request form submissions (FR-3, FR-5). The site is static, so a backend service is required.
- **Decision**: Use an **existing AWS service** owned/operated by the stakeholder.
- **Rationale**:
- Reuses existing infrastructure
- Avoids new third-party service dependencies
- **Remaining open items** (blocking `38-lead-capture-spec.md`):
- Which AWS service is used (e.g. SES, API Gateway + Lambda)?
- What is the form submission endpoint URL?
- What spam protection is in place or expected (e.g. honeypot, reCAPTCHA, AWS WAF)?
- **See also**: OQ-3
## ADR-003 — Mobile-first, performance-first design
- **Status**: Accepted
- **Context**: Most traffic is expected on mobile; SEO and conversion depend on usability and speed.
- **Decision**: Adopt a **mobile-first** layout and performance budget mindset throughout.
- **Rationale**:
- Improves conversion on mobile
- Supports SEO (Core Web Vitals)
- **Consequences**:
- Images must be optimized (sized, compressed, lazy-loaded); avoid heavy JavaScript
- Ensure accessible typography and touch-friendly tap targets
## ADR-004 — Service pages: grouped by search intent for SEO
- **Status**: Accepted
- **Context**: Individual pages per service produce better SEO but only if pages have sufficient unique content. Some services (carpentry/mounting, flooring/wood refinishing) share search intent and image assets.
- **Decision**: Organize service pages into **9 grouped pages** (down from 10+ individual items), grouped by search intent:
| Page | Slug | Services grouped |
|------|------|-----------------|
| Painting | `/services/painting/` | Interior & exterior painting, trim |
| Tile Setting | `/services/tile-setting/` | All tile types, all rooms |
| Drywall & Sheetrocking | `/services/drywall/` | Drywall, sheetrocking, patching |
| Minor Plumbing | `/services/plumbing/` | Sinks, toilets, showers |
| Minor Electrical | `/services/electrical/` | Lights, fans, fixtures |
| Carpentry & Mounting | `/services/carpentry-and-mounting/` | Carpentry, mounting, assembly |
| Flooring & Wood Refinishing | `/services/flooring/` | Flooring, decks, stairs, refinishing |
| Security & Safety Equipment | `/services/security-safety/` | Grab bars, locks, cameras |
| Boat Work | `/services/boat-work/` | Marine woodwork, paint, hardware |
- **Rationale**:
- Grouped pages have richer content and avoid thin-page SEO penalties
- Carpentry + Mounting share the installation/assembly search intent
- Flooring touch-ups + Wood Refinishing share the surface/finishing search intent and asset library
- **Consequences**:
- Each grouped page must contain enough unique content to serve its target keywords
- Internal linking from the Services hub must cover all sub-topics
## ADR-005 — No analytics or tracking in v1
- **Status**: Accepted
- **Context**: Stakeholder decided against tracking for simplicity.
- **Decision**: **No analytics scripts, no ad pixels, no cookie consent banner** in v1.
- **Rationale**: Reduces complexity, avoids consent/privacy obligations at launch.
- **Consequences**:
- No data-driven iteration on traffic or conversions at launch
- Adding analytics later will require revisiting privacy policy needs