This document discusses the architecture of a software application including front-end, service, business, and database layers. It also defines Drools as a business rule management system and production rules engine that provides advantages like separating logic and data, speed and scalability, centralizing knowledge, tool integration, and understandability of rules. Code examples of Drools are proposed to be shown.

2. Service-layer
Busines layer
Front-end
Database-layer

3. Busines layer

4. What a fuck is drools ?

5. Drools
• BRMS (Business Rule Management System)
– DSL
• Rules engine
• Production rules engine
• Declaractive program

6. Drools advantages
• Logic and data separation
• Speed and Scalability
• Centralization of Knologde
• Tool Integration
• Understand Rules

7. Let’s see code!!!