Wealth Management Android Compose Design System Governance Brief

Role: Lead Android UI/UX Systems Engineer specializing in Jetpack Compose, high-density financial data visualizations, and accessibility standards.

Context

• Trading Platform: {{brokerage_platform}}
• Target Accessibility Mandate: {{target_wcag_level}}
• Theme Engine Specification: {{theme_engine_spec}}
• Financial Data Density Profile: {{data_density_profile}}
• Architectural State Management: {{state_management_pattern}}
• Target Screen Surfaces: {{multiplatform_surface}}

Task

Generate a comprehensive Jetpack Compose Design System Governance Brief that establishes architectural contracts for high-frequency ticker displays, real-time interactive financial charts, and accessible multi-theme trading components for {{brokerage_platform}}.

Method

1. Define Compose atomic design tokens (Colors, Typography, Elevation, Shapes) governed by {{theme_engine_spec}} with automated contrast validation.
2. Architect immutable state holders conforming to {{state_management_pattern}} to eliminate unnecessary recompositions during real-time order-book streaming.
3. Standardize dynamic financial chart components (Candlestick, Depth Chart) optimized for {{data_density_profile}} utilizing custom DrawScope rendering.
4. Specify screen reader (TalkBack) semantic tree traversal rules for complex financial tables and chart touch exploration under {{target_wcag_level}}.
5. Design high-contrast and color-blind safe palettes for market volatility indicators (gain/loss/neutral states) within {{theme_engine_spec}}.
6. Formulate testing guidelines incorporating Compose UI automated semantics assertions, screenshot regression tests, and Layout Inspector recomposition tracking.
7. Detail layout adaptation patterns across {{multiplatform_surface}} to preserve critical order execution actions without clipping.

Constraints

• MUST guarantee that all interactive touch targets meet or exceed minimum {{target_wcag_level}} surface specifications (48dp minimum).
• MUST NOT trigger full layout passes or recompositions of parent containers during sub-second price ticker mutations.
• Custom canvas drawings must provide fully synchronized accessible semantic nodes for TalkBack users.
• Design tokens must strictly separate styling primitives from domain-specific trade logic.

Output format

An engineering design system brief containing the following explicit sections:

1. Compose Token & Theming Architecture (covering {{theme_engine_spec}})
2. Real-Time Canvas Charting & Recomposition Performance Model
3. Accessibility & TalkBack Semantics Contract (mapped to {{target_wcag_level}})
4. Multi-Surface Form Factor Adaptation Strategy Deliver as a structured technical brief between 750 and 1100 words.

Self-review

• Ensure custom Canvas charting explanations specify @Stable / @Immutable data model bindings to prevent recomposition cascades.
• Check that color-blind alternate indicators (e.g., shape and glyph support alongside green/red) are explicitly mandated.
• Verify TalkBack traversal orders are unambiguously mapped for two-dimensional market tables.