Group Policy | Technet --https://technet.microsoft.com/en-us/windowsserver/bb310732.aspx
Group Policy is an infrastructure that allows you to implement specific configurations for users and computers. Group Policy settings are contained in Group Policy objects (GPOs), which are linked to the following Active Directory directory service containers: sites, domains, or organizational units (OUs). The settings within GPOs are then evaluated by the affected targets, using the hierarchical nature of Active Directory. Consequently, Group Policy is one of the top reasons to deploy Active Directory because it allows you to manage user and computer objects.
MS: Windows 2000 Group Policy --http://www.microsoft.com/windows2000/techinfo/howitworks/management/grouppolwp.asp
This paper describes Group Policy, one of the key IntelliMirror management technologies provided for change and configuration management in Microsoft Windows 2000 operating system. Group Policy includes options for registry-based policy settings, security settings, software installation, scripts, folder redirection, Remote Installation Services, and Internet Explorer maintenance.
New tool: Policy Analyzer | Microsoft Security Guidance --https://blogs.technet.microsoft.com/secguide/2016/01/22/new-tool-policy-analyzer/
Policy Analyzer is a utility for analyzing and comparing sets of Group Policy Objects (GPOs). It can highlight when a set of Group Policies has redundant settings or internal inconsistencies, and can highlight the differences between versions or sets of Group Policies. It can also compare GPOs against current local policy settings and against local registry settings. And you can export its findings to a Microsoft Excel spreadsheet.