Diagram Design vs Heuristic Evaluation

Diagram Design

By Cathryn Lavery

Create polished, on-brand diagrams and charts, from flowcharts to org charts and journeys.

Heuristic Evaluation

By JR Brugger (Design Workflow)

Get expert UX reviews of your app or website using proven usability principles.

Diagram Design

• Draws 45 diagram and chart types, from flowcharts to user journeys and 2x2 matrices
• Matches your brand by pulling colors and fonts from your website
• Redraws existing draw.io, Mermaid, or Excalidraw diagrams in a cleaner style
• Sizes diagrams for docs, slides, social posts, or print
• Exports to PNG or SVG when you ask

Heuristic Evaluation

• Evaluates your interface against 10 proven usability heuristics like system visibility, error prevention, and consistency
• Documents each issue with severity ratings from cosmetic to critical
• Provides specific recommendations for fixing each problem found
• Reviews both new user and experienced user perspectives
• Prioritizes findings so you know what to fix first

Reach for Diagram Design when…

• You need a quadrant of projects by impact versus effort for a planning meeting
• You want a customer journey map or service blueprint for a strategy deck
• You have an ugly flowchart and want it to look professional
• You want every diagram your team makes to match your brand

Reach for Heuristic Evaluation when…

• You're about to launch and want to catch UX issues before users do
• You need to prioritize design improvements with limited resources
• You want expert feedback on a prototype or new feature
• You're preparing for user testing and want to fix obvious problems first