data-modeling
Installation
SKILL.md
Purpose
Create entity-relationship diagrams (ERDs) that identify the key data entities, define their attributes, and specify the relationships between them. Use this to translate natural-language requirements and use cases into a formal visual model that exposes hidden assumptions and missing requirements.
This is a conceptual data model, not a physical database schema. It captures what data the system must manage and how pieces of data relate, independent of the technology used to store them.
Key Concepts
ERD Notation Styles
Chen Notation (conceptual, good for stakeholder communication):