Tuesday, December 15, 2009

Sharepoint 2010 Top 10 : Search & Managed Metadata

  1. Search in SharePoint Server 2010 has been re-architected to allow greater redundancy within a single farm and improvements to scaling up and out.
  2. The query architecture and the crawling architecture can be scaled out separately.
  3. The query architecture includes query servers, index partitions (which reside on query servers), and property databases.
  4. An index partition represents a portion of the entire index, and therefore the index is the aggregation of all index partitions. Partitioning the index allows different portions of the index to be spread across query servers. Administrators decide on the number and configuration of each of the partitions. At least one server in a farm must host the query role, and more query servers can be added to increase performance. For example, a farm with three query servers can be configured so that each query server has an index partition that represents one-third of the index.
  5. The crawl server hosts the crawling architecture, which includes crawlers, crawl databases, and property databases.
  6. At least one crawler component is present, and it is the responsibility of each crawler to crawl content. Each crawler is associated with a crawl database, and the crawled content and history are stored in the crawl database. Multiple crawlers can be used to crawl different content simultaneously. Crawlers reside on crawl servers, populate index partitions, and propagate the partitions to query servers.
  7. Property information is stored in the property database. The number of property databases depends on the volume of content that is crawled and the amount of metadata that is associated with the content.
  8. Index Server Redundancy - In SharePoint 2010, search employs a better search topology including redundant crawlers. This is one of the many fallouts from the architectural improvements around the Shared Server Provider, now called Shared Service Applications.
  9. When compared to SharePoint 2007, one more search technology option - FAST Search Server 2010 for SharePoint has been added to SharePoint 2010 product family. Options now available are:
    • Microsoft SharePoint Foundation 2010 search
    • Microsoft Search Server 2010 Express
    • Microsoft Search Server 2010
    • Microsoft SharePoint Server 2010
    • FAST Search Server 2010 for SharePoint
  10. FAST Search - FAST Search for SharePoint is a new Microsoft product that is integrated with SharePoint Server 2010 to provide high-end search capability. It is highly efficient and can search a huge corpus of data extremely fast.

Managed Metadata Service
  1. Managed Metadata Services will provide enterprise management of metadata terms and content types for SharePoint 2010. This will allow organizations to share metadata taxonomies, content types and terms across multiple SharePoint webs and site collections.
  2. When you create new managed terms, or when users add managed keywords, these terms are stored in the database.
  3. The managed metadata service can be published to provide access to other Web applications. When a service application is published, a URL to the service is created. The administrator of another Web application can create a connection to your service by using this URL.
  4. In addition to sharing metadata, you can also use the managed metadata service to share content types. By creating a new managed metadata service and specifying a site collection as the content type hub, you can share all content types in the site collection’s content type gallery.
  5. You can create multiple managed metadata service applications. This provides the capability to share multiple term stores and content types from multiple site collections. Each service must specify a different term store during the creation process, and a new database will be created if it does not exist.
  6. A term can have any number of synonyms.
  7. Multi-lingual – for deployments in more than one language, the metadata framework fully supports the SharePoint 2010 MUI (Multi-lingual User Interface), meaning that if the translations have been defined, users can tag items in the language tied to the locale of the current web.
  8. enable powerful search and filters in SharePoint 2010
  9. This will provide a much more unified view of data across the organization. Different departments or groups may have their own site collections for managing their SharePoint application, but everyone in the organization can be using common content types and metadata. All departments have access to a centrally managed set of metadata defined in the Document-Base content type, and all keywords can be centrally managed and stored in a single location, so all departments can use all of the keywords.
  10. Microsoft refers to the Managed Metadata service as a "term" store. A term is a word or phrase that can be associated with an item in SharePoint 2010. And a term set is a collection of related terms. There are two types of terms in SharePoint 2010:
    • Managed terms - these terms are usually pre-defined by an enterprise administrator. Managed terms can be organized into a hierarchy and can be selected by users via the new "managed metadata" column type. When a column of this type is defined the user will be allowed to select the metadata from the set of pre-defined managed terms.
    • Managed keywords - these are words or phrases that have been added to SharePoint 2010 items. Keywords are often used in more ad-hoc folksonomies where the user is allowed to tag an item with whatever keywords they believe are appropriate. Keywords are never represented in a hierarchy. Many SharePoint 2010 content types have a Managed keyword column by default, administrators don't need to explicitly add it.

More - SharePoint 2010 Top 10 Features

Source - SharePoint 2010 Resources

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