graph library¶
Purpose¶
Differentiated visualization system, interaction language, and style quality bar. This workstream owns the chart rendering layer: the set of chart types (line, bar, area, scatter, KPI, table, etc.), their visual design language, interaction behaviors, and the overall aesthetic quality bar that makes Dataface dashboards look distinctive and professional. RJ Andrews leads the design direction. The graph library renders within dft-core's rendering pipeline but owns the design decisions — color palettes, typography, animation, responsiveness, and visual grammar. Adjacent to dft-core (which provides the rendering infrastructure) and dashboard-factory (which relies on graph-library quality for template polish).
Owner¶
- Data Visualization Designer and Engineer (RJ Andrews)
Tasks by Milestone¶
A runnable prototype path exists for visual language, chart defaults, interaction behavior, and differentiated styling, with concrete artifacts that prove the flow works end-to-end in the current codebase. Core assumptions are documented, known constraints are explicit, and the team can explain what is real versus mocked without ambiguity.
- Prototype gaps and follow-on capture — Document top gaps and risks in interaction/accessibility polish that must be addressed next.
- Prototype implementation path — Implement a runnable end-to-end prototype path for visual language system.
- Prototype validation and proof — Validate chart default behavior with concrete proof artifacts and repeatable steps.
Internal analysts can execute at least one weekly real workflow that depends on visual language, chart defaults, interaction behavior, and differentiated styling in the 5T Analytics environment, without bespoke engineering intervention for every run. Instrumentation and feedback capture are in place so failures, friction points, and adoption gaps are visible and triaged with owners.
- M1 consistent category color mapping across charts — Investigate and design a top-level category color mapping system so repeated semantic values such as Accessories, Elect…
visual language, chart defaults, interaction behavior, and differentiated styling is hardened enough for regular use by multiple internal teams and initial design partners, with a predictable response loop for issues and requests. Quality expectations are documented, and prioritized improvements from real usage are actively incorporated into delivery.
- Lock visual language v1 with RJ — Finalize differentiated chart styling system, typography, and interaction defaults with RJ Andrews.
- Adoption hardening for internal teams — Harden visual language system for repeated use across multiple internal teams and first design partners.
- Design-partner feedback loop operations — Operationalize rapid feedback-to-fix loop for chart default behavior with explicit decision logs.
- Quality standards and guardrails — Define and enforce quality standards for interaction/accessibility polish to keep output consistent as contributors exp…
- Terminology standards and synonym handling — Define strict product terminology for chart and visualization concepts while preserving backward-compatible interpretat…
- M2 research perceptual graphic-emphasis analysis beyond contrast — Research whether Dataface should develop a chart-analysis tool that goes beyond standard accessibility contrast checks…
Launch scope for visual language, chart defaults, interaction behavior, and differentiated styling is complete, externally explainable, and supportable: user-facing behavior is stable, documentation is publishable, and operational ownership is explicit. Remaining gaps are non-blocking, risk-assessed, and tracked as post-launch follow-up rather than unresolved launch debt.
- Launch docs and external readiness — Publish external-facing documentation and examples for chart default behavior that are executable by new users.
- Launch operations and reliability readiness — Finalize operational readiness for interaction/accessibility polish: telemetry, alerting, support ownership, and incide…
- Public launch scope completion — Complete launch-critical scope for visual language system with production-safe behavior and rollback clarity.
- feat: Brushing/selections with range variables — Add brushing and range-variable selections so charts can drive cross-filtered interactions and exploratory analysis.
- Launch-ready chart quality pass — Execute final quality pass on launch chart templates for consistency, readability, and performance.
- Optimization: Batch Vega-Lite chart rendering for ~30% speedup — Batch Vega-Lite rendering to reduce chart render overhead and target roughly 30% performance improvement.
Post-launch stabilization is complete for visual language, chart defaults, interaction behavior, and differentiated styling: recurring incidents are reduced, support burden is lower, and quality gates are enforced consistently before release. The team has a repeatable operating model for maintenance, regression prevention, and measured reliability improvements.
- Regression prevention and quality gates — Add or enforce regression gates around chart default behavior so release quality is sustained automatically.
- Sustainable operating model — Document and adopt sustainable operating model for interaction/accessibility polish across support, triage, and release…
- v1.0 stability and defect burn-down — Run stability program for visual language system with recurring defect burn-down and reliability trend tracking.
- Conditional Formatting — Implement conditional formatting primitives for the graph library to encode thresholds, exceptions, and trend states vi…
v1.2 delivers meaningful depth improvements in visual language, chart defaults, interaction behavior, and differentiated styling based on observed usage and retention signals, not just roadmap intent. Enhancements improve real customer outcomes, and release readiness is demonstrated through metrics, regression coverage, and clear migration guidance where relevant.
- Quality and performance improvements — Ship measurable quality/performance improvements in chart default behavior tied to user-facing outcomes.
- v1.2 depth expansion — Deliver depth expansion in visual language system prioritized by observed usage and retention outcomes.
- v1.2 release and migration readiness — Prepare v1.2 release/migration readiness for interaction/accessibility polish, including communication and upgrade guid…
Long-horizon opportunities for visual language, chart defaults, interaction behavior, and differentiated styling are captured as concrete hypotheses with user impact, prerequisites, and evaluation criteria. Ideas are ranked by strategic value and feasibility so future investment decisions can be made quickly with less rediscovery.
- Experiment design for future bets — Design validation experiments for interaction/accessibility polish so future bets can be tested before major investment.
- Future opportunity research — Capture long-horizon opportunities for visual language system with user impact and strategic fit.
- Prerequisite and dependency mapping — Map enabling prerequisites and dependencies for chart default behavior to reduce future startup cost.