Managed Metadata (Managed metadata) for SharePoint 2010

In an enterprise, it is sometimes necessary to have a dedicated metadata library to hold a variety of predefined metadata. With the metadata library, it is convenient for the enterprise in various digital content, digital asset applications on a variety of definitions of good metadata, or in the way of tag, for a variety of content tag. When metadata or tag is assigned to a variety of content, either search or browse, these metadata and tag can be used to classify and filter the search results or content views.

In SharePoint 2010, the managed Metadata service is provided, which is a services application that can be used for the entire server farm, and even for the entire enterprise (by bringing a server farm's managed Metadata Service released Atch), providing a centralized metadata storage and management center.

Open the Management Center service Application management to see the managed Metadata service. When selected, click the "Manage" button in the upper Ribbon to open the Terminology Library management tool.

Tip: If you are opening the Terminology Library Administration tool for the first time, you may find that you do not have permission to make changes to the terminology library. You need to add yourself to the Terminology library administrator:

The Terminology Library Management tool is a tool designed to manage all the terms (Term) that are stored by the managed Metadata service. Administrators can use it to define in advance the various terminology required in the enterprise. In the Terminology Library Administration tool, you can categorize terms by group, term set (Term set). Based on the group, you can define the permissions (who are the administrators of the term group and who are participants in the term group). A term can have one or more sub terms, and a term can also be in multiple term sets.

In the default settings, all new term sets and terms can be used for tag, and administrators can manually enable or disable this feature:

If an administrator wants a regular user of a SharePoint site to add a new term entry to the glossary manually, you need to change the submission policy for the term set to "open" (the default is off state, which means that only administrators can add terminology through the Terminology management tool):

For each term, an administrator can perform various operations on it, where "reusable term" means to reuse the term in another set of terms, but not to duplicate a term, but to "map" a term to several different places:

Some terms may have synonyms, such as "IE" and "Internet Explorer", where an administrator can specify one or more synonyms for a term:

In addition to this Global Terminology Library Administration tool located in central Administration, the site collection also has a site collection-level Terminology library management tool through which site collection administrators can manage all the terms of a site collection: