Prerequisite and dependency mapping

Problem

Future chart capabilities — such as real-time data binding, cross-chart interaction (brushing/linking), or advanced layout algorithms — will require foundational changes to the rendering pipeline, theming system, or SVG generation architecture. If these prerequisites are not identified early, implementing future features will require expensive rework of core chart infrastructure. Mapping dependencies now (e.g., "cross-chart brushing requires a shared event bus in the render layer" or "streaming updates require incremental SVG diffing") allows the team to make current architectural decisions that reduce future startup cost rather than painting themselves into corners.

Context

• Future work on visual language, chart defaults, interaction behavior, and differentiated styling will fail or stall if its hidden dependencies stay implicit, so this task should make the enabling conditions visible before anyone commits implementation effort.
• The goal is to understand which technical, product, operational, or partner-side prerequisites gate the most important next bets.
• Expected touchpoints include dataface/core/render/chart/, chart design docs, examples, and visualization test coverage, adjacent workstream plans, external dependencies, and any architectural decisions that would constrain later options.

Possible Solutions

• A - Let each future initiative discover its own blockers as it starts: workable short term, but it creates repeated surprise and thrash.
• B - Recommended: produce a dependency map for the most important future directions: identify technical enablers, ownership gaps, sequencing constraints, and external dependencies up front.
• C - Treat everything as blocked until all possible prerequisites are solved: safe on paper, but too broad to be useful.

Plan

1. List the future directions most likely to matter for visual language, chart defaults, interaction behavior, and differentiated styling and enumerate the dependencies each one appears to require.
2. Group those dependencies into themes such as architecture, data/contracts, operations, design, or external approvals and identify likely owners.
3. Highlight the prerequisites that unlock multiple future paths and the ones that are too speculative to prioritize yet.
4. Turn the highest-value prerequisites into sequenced follow-up tasks or explicit decision points rather than leaving them buried in notes.

Implementation Progress

Review Feedback

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