Database Design Templates

Entity-relationship models, schema designs, and data architecture diagrams.

E-Commerce Database Schema

ER diagram of a complete e-commerce database with users, products, orders, payments, and reviews.

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SaaS Multi-Tenant Schema

ER diagram for a multi-tenant SaaS application with organizations, members, roles, and subscription billing.

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Social Media Data Model

ER diagram for a social media platform with users, posts, comments, likes, follows, and notifications.

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Observer Design Pattern

Class diagram showing the Observer pattern with EventEmitter, subscribers, and typed event handling.

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CMS Content Model

ER diagram for a headless CMS with pages, blocks, media, and versioned content publishing workflow.

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Role-Based Access Control (RBAC)

Class diagram for an RBAC system with users, roles, permissions, and resource-level access policies.

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Inventory Management Schema

ER diagram for warehouse inventory tracking with products, warehouses, stock levels, and transfer orders.

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