Drools vs. Higson

Drools is well suited for big projects where business logic and rules must be separated from program code. So they can evolve when business evolves without being tied to code evolution and deployment.

Incentivized

Hyperion is great for Financial report consolidation and also for generating reports. It also has built in regulatory and other compliance rules which helps us reduce costs overall. The OLAP engine can easily be used for a full scale project management requirement. Since the data is stored in clusters in the cloud, read and write speeds are high and we use that speeds to generate multiple Business Models in just a few mintues.

• Writing rules with business focus
• Rules evolution and maintenance
• separate business logic from program code

Incentivized

• Separation of business logic from the app's code
• Decision table performance
• Good GUI

• Fusion doesn't support persistence of working memory, which brings some extra high availability risk to our business.
• Guvnor still has a lot room to be implemented, it is not so user-friendly for non-technical people, so a lot of business users complain it is hard to master.
• Rule execution server doesn't even have JMX implemented, hard to be monitored.
• Drools is still lacking support for key Web services standards.

Incentivized

• Pretty high entry threshold
• A few bugs in GUI
• UX might be better in some places

It's a very good tool to manage business rules. There are certain GUI bugs and a code boilerplate, but overall it does its job really well.

There is documentation on the site to help learn about the tool. There is also an email to ask for help or any other questions. The team responds quickly with a full answer.

OpenRules provides the non-technical Excel way for a business user to easily modify and manage the rules. Sometimes we found Drools is a little bit overkill for some small and quick projects and we found Roolie is a not bad option as Drools alternative.

Incentivized

Hyperon has got far better performance. It also has far better GUI to manage business rules. On the other hand, Drools has a bigger community to help you with your problems.

• The IT department quickly adopted Drools as it is a very good java-based rule engine, which saves a lot of time to meet the project timeline and balanced our business requirements.
• Recently we start considering the OpenRules, which may be more business user-friendly.

Incentivized

• Shorter time to market with new features
• Business users might change things without the help of developers