PCR - Policy Creation

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Project Links
Software GitHub Repository https://github.com/ds2-eu/pcr.git
Progress GitHub Project https://github.com/ds2-eu/PCR/issues

General Description

The PCR module provides a user-friendly solution for Data Space authorities to create, manage, and compare data access policies across or within Dataspaces. Built around the ODRL (Open Digital Rights Language) standard, the tool simplifies policy creation using intuitive UI elements and enables text-based comparison of policies. It generates compliant JSON-formatted policy files that can be used across DS2 modules, including for integration with the PAE (Policy Agreement and Enforcement) module.

Architecture

The figure below represents the module fit into the DS-DS environment.

DS2 DRM Architecturefits

The figure below represents the actors, internal structure, primary sub-components, primary DS2 module interfaces, and primary other interfaces of the module.

DS2 DRM Architecture

Component Definition

This module has the following subcomponents and other functions: - PCR UI: A graphical user interface for Data Space authorities to create, view, and edit policies. It includes intuitive drop-downs for defining policy parameters, allowing non-experts to create ODRL-compliant policies without deep technical knowledge.

PCR Backend: Provides CRUD functionality to the UI, manages the APIs for inter-module communication, and interacts with the PCR Engine for policy logic and policy transfer with the PAE module or other PCR instances.
PCR Engine: Facilitates the backend logic needed for policy creation by drawing from a knowledge base. It processes user inputs from the UI and builds structured ODRL policy definitions.
PCR Comparison Engine: Supports textual comparison of policies. It enables the manual negotiation of policy compatibility across dataspaces by comparing ODRL policy files.
PCR Knowledge Base: A repository of structured rules, policy templates, and attributes needed during the policy creation and comparison processes.