Datasheet

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Term
Definition
Partitioned Index
SharePoint Server 2010 includes a new concept that enables administrators to spread
the load for queries across multiple query servers. This is achieved by creating subsets of
an index, and propagating individual subsets to different query servers. The subsets are
known as partitions. At query time, the query object model contacts each query server
that can satisfy the search so that all results to be returned to the user are included.
Property Database
Managed properties and security descriptors for search results are not stored in the
physical index files. Instead, they are efficiently stored in a database. Query servers
typically satisfy a query by retrieving information from both the index file and the
property database.
Query Object Model
The query object model is responsible for accepting inputs from search user interfaces,
and for issuing appropriate queries to query servers. The search Web Parts provided by
SharePoint Server 2010 use the query object model to run queries. Developers can also
create custom user interfaces and solutions that run queries by using the query object
model.
Query Server
Query servers query retrieve data from index files and the property databases to satisfy
queries.
Ranking
Ranking defines the sort order in which results are returned from queries. Typically,
results are sorted in order of descending relevance, so that the most relevant
documents are presented near the top of the results page. However, information
workers might choose to apply a different sort order, such as by date modified.
Relevance
Relevance describes how well a given search satisfies a user‟s information needs.
Relevance includes which documents are returned in the results (document recall) and
the order of those documents in the results (ranking).
Search Center
Search Center is a site based on the Search Center site template. It provides a focused
user interface that enables information workers to run queries and work with search
results.
Search Document
See Search Item
Search Item
A search item represents a document, list item, file, Web page, Exchange public folder
post, or database row that has been indexed. Search items are sometimes referred to as
search documents, but the key point is that these items are returned by search queries.