This module contains a rewriting of the drools framework, that is intended to be used to provide clear separation and composition for each compiler/runtime of the different engines that Drools project contains (Rules engine, DMN engine, PMML engine). The first step has been to include efesto as self-contained module inside drools.

The main focus of this project is on:

1. clear separation between "container" and "content" contexts; the "content" is represented by functionalities exposed by the compile-time and runtime; the "context" is the environment in which such functionalities are invoked ( see architectural choices for more details)
2. clear separation between compile-time and runtime
3. uniform overall management of different models/engines

Regarding the overall module organization/relationship, this project should follow the guidelines of the "Clean Architecture" principle. As per the design style, the microkernel-style will be featured, where each model/engine will represent a specific plugin.

Each plugin should provide a compilation and a runtime component.

The documentation folder contains diagrams (PUML, Archimate), images, and other resources related to design/architectural choices.

This effort can not be full-filled by a single person, since it involve decisions at every level and it will have an impact on the all drools codebase; everyone may be interested would be warmly welcomed for ideas, suggestions, criticism, contribution.

ArchUnit has been introduced to enforce (as much as possible) some general architectural and design guidelines.

See official documentation and maven plugin information for further details.

JDepend is a tool that traverses Java class file directories and generates design quality metrics for each Java package. JDepend allows you to automatically measure the quality of a design in terms of its extensibility, reusability, and maintainability to manage package dependencies effectively. See official documentation for details.