
Data Visualization
OFTW Challenge: speed, focus, and a concise story that reached the podium
By Alonso Valdés•2025-09-25
#plotly#dash#challenge#analytics#llm
Context
Internal app for One for the World (OFTW) focused on key metrics: money moved, OKRs, pledge performance, and an LLM Chat page for natural-language queries.
Analytical MVP
- Type checks, category normalization, and conservative imputations.
- A single core metric to enable clean comparisons. Avoid unnecessary complexity.
- Modular architecture in Dash + Plotly + Flask.
Views
- Overview with a clear message.
- Comparison by chapter or portfolio using facets.
- Detail with ranking and automatic annotations.
Design
- Contained, accessible palette.
- Useful legends and actionable titles.
- Graceful empty states with clear messaging.
Outcome
Awarded third place in the Plotly x OFTW challenge.