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Subject: [OASIS Issue Tracker] (XDI-38) Rework intro to policy expression pattern
Hubert Le Van Gong created XDI-38: ------------------------------------- Summary: Rework intro to policy expression pattern Key: XDI-38 URL: https://issues.oasis-open.org/browse/XDI-38 Project: OASIS XRI Data Interchange (XDI) TC Issue Type: Bug Components: XDI Policy Affects Versions: 1.0 Reporter: Hubert Le Van Gong Policy Expression Requirements - Policy Expression Pattern We really need to make an effort to better explain this section. I suggest that before laying out the exact pattern, we describe the approach in layman's terms. How about something like this: [Place at the top of Policy Expression Pattern] A policy is the combination of individual policy statements. An XDI policy statement can take two forms: - A condition that must be met or, - An authorized operation that may only be performed over a particular XDI statement (or subgraph?). A condition is described using a <context> / <value> / <condition> patten where: - <context> describes the relationship of this statement to other statements in the policy (i.e. how to compose those statements) - <value> is the boolean value the condition must match - <condition> describes the condition to be evaluated by the policy An authorized operation is described using a <context> / <operator> / <XDI subgraph> pattern where: - <context> describes the relationship of this statement to other statements in the policy (i.e. how to compose those statements) - <operator> describes the graph operation that is requested - <XDI subgraph> describes the targeted XDI statement (or subgraph) In details, /.../ <== At this point, we can add the formal pattern description that’s already in the spec. However, I would recommend keeping the separation between the 2 types (condition & authorized operation) and align the terminology with the above. -- This message was sent by Atlassian JIRA (v6.2.2#6258)
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