!!! Overview
[{$pagename}] are models (or we prefer [frameworks]) for [Access Control].


[Policy Based Management System] is a generic [Framework] for [{$pagename}] which use a predefined [Access Control Policy]

[Privilege Management Infrastructure] ([PMI]) is a [framework] that could be used within an [Implementation] of a [{$pagename}].

There are many [Access Control] Models including: (but certainly NOT limited to)
* [Policy Based Management System] is a generic [Framework] for [{$pagename}] which use a predefined [Policy]
* [Role Based Access Control|RBAC] ([RBAC])
* [Attribute Based Access Control|ABAC] ([ABAC])
** [Context Based Access Control] ([CBAC])- Also referred to as [Risk Based Access Control|RiskBAC] are a form of [Attribute Based Access Control]
** [User Managed Access|User-Managed Access] ([UMA])
** [Dynamic Access Control] ([DAC])
** [Lattice Based Access Control] ([LBAC])
** [Adaptive Policy-based Access Management] ([APAM])
* [Mandatory Access Control]
* [Discretionary Access Control] ([DAC])
And we are sure there are others.

!! Not an [Implementation]
None of these models are an implementation of a [Access Control] system but rather "Models" or [Frameworks] that could be utilized for an [Architecture] [implementation].

Typically, each vendor will implement a hybrid of one or more [{$pagename}].

!! [Application] [{$pagename}]
[{$pagename}] is when the [Policy Enforcement Point] within the particular [application] or [Information Technology] system. 

In most [Organizational Entities|Organizational Entity] the desire is for a more Centralized [{$pagename}]

!! [ACL]-based [{$pagename}]
[ACL]-based [{$pagename}], is when a [Digital Identity] requests an operation on a [Resource], the system first checks the [Access Control List] ([ACL]) for an applicable entry in order to decide whether the requested operation is [authorized].


!! [{$pagename}] [Microsoft Windows] 
[Access Control Model-Microsoft Windows]


!! More Information
There might be more information for this subject on one of the following:
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