Drools
Drools is an open source business rules management system and rules engine for building expert systems and complex event processing. It allows you to write business rules in a declarative way and process them at high speed.
business-rules
rules-engine
expert-system
complex-event-processing
Drools: Open Source Business Rules Management System
Droools is an open source business rules management system and rules engine for building expert systems and complex event processing. It allows you to write business rules in a declarative way and process them at high speed.
What is Drools?
Drools is an open source business rules management system (BRMS) and rules engine for building expert systems and complex event processing. It provides a core business rules engine and tools for developing and managing business logic. Some key features and capabilities of Drools include:
- Declarative business rules language based on declarative logic programming
- Rete-based rules engine for efficient pattern matching and rule evaluation
- Complex event processing and event stream analysis
- Integration with Java applications and runtime environments
- Web-based authoring and administration with Drools Workbench
- Tools for testing and debugging business rules
- Scenario simulation and analysis
- Ability to call external procedures and services
Drools allows you to express business logic in the form of business rules separately from application code. This improves agility and reduces costs of changing business policies. The declarative rules are easier to understand, maintain, and extend over time. The Rete-based engine compiles rules into an efficient network of nodes for incremental execution and pattern matching. This allows Drools to process hundreds of thousands of rules at very high speeds.
Overall, Drools combines business rule management capabilities with high-performance complex event processing. It is well suited for developing expert systems, business policies engines, monitoring systems, recommendation systems, and other rule-based applications.
Drools Features
Features
- Business rules management system
- Rules engine
- Expert system development
- Complex event processing
- Declarative rules language
- High performance rules processing
Pricing
- Open Source
Pros
Open source
Active community
Integrates with Java and .NET
Scalable and performant
Supports complex logic and workflows
Easy to write and maintain rules
Cons
Steep learning curve
Configuring and deploying can be complex
Not as user friendly as some commercial alternatives
Limited GUI and tooling
Not ideal for non-technical users
Official Links
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