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ID Category Requirement
ARCH-1 Architecture Five-file ES6 module structure: main.js, dom.js, models.js map.js geometry.js
ARCH-2 Architecture Dynamic styling with no external CSS (HTMLElement style property). RGBA coloring.
ARCH-3 Architecture Modern javascript with import maps for clean module resolution
ARCH-4 Architecture Comprehensive JSDoc type definitions with TSC validationn
ARCH-5 Architecture Functional declarative interface around browsers native SVG (svg.js) and DOM (dom.js).
ARCH-6 Architecture Code style: Prefer static, private, Classes, modules, minimal state, function chaining, modern null safety.
ARCH-7 Architecture Less program lines and generic approach is always preferred over "Ad hoc" patching.
UI-1 UI Single view layout with map and control panel
UI-2 UI Native SVG map with Helsinki district boundaries
UI-3 UI Color-coded house markers based on scoring
UI-4 UI Native dialog elements for house details
UI-5 UI Toast notifications for error handling
UI-6 UI Weight sliders for scoring parameters
UI-7 UI Filter controls for price, year, area and first appeared
DATA-1 Data Models translate json data into application structure.
DATA-2 Data Couchbase API integrates for house data and enables querying if it is ever needed.
DATA-3 Data Scoring engine with weighted criteria
PERF-1 No DOM selectors but use of direct layout handles (we know each element).
PERF-2 Changes to DOM are performed in patches. All changes are collected and elements replaces at once.
ERROR-1 Error Handling Meaningfull debug information
ERROR-2 Error Handling Errors should be raised when the program has ended up in a state that it would not be in.
MAP-1 Direct WGS84 coordinates with moving view space
MAP-2 Map House markers with hover and click interactions
MAP-3 Map Responsive map that handles window resize, zoom and pan
TYPE-1 Types Strict JSDoc typing for all models and functions
DEVX-1 Developer Exp Clean separation of concerns between modules
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