1.1 Glossary
This document uses the following terms:
Augmented Backus-Naur Form (ABNF): A modified version of Backus-Naur Form (BNF), commonly used by Internet specifications. ABNF notation balances compactness and simplicity with reasonable representational power. ABNF differs from standard BNF in its definitions and uses of naming rules, repetition, alternatives, order-independence, and value ranges. For more information, see [RFC5234].
Coordinated Universal Time (UTC): A high-precision atomic time standard that approximately tracks Universal Time (UT). It is the basis for legal, civil time all over the Earth. Time zones around the world are expressed as positive and negative offsets from UTC. In this role, it is also referred to as Zulu time (Z) and Greenwich Mean Time (GMT). In these specifications, all references to UTC refer to the time at UTC-0 (or GMT).
default index: The full-text index field that is used to evaluate search queries that do not specify a managed property or full-text index field.
dynamic rank: A rank component that indicates how well query text matches an indexed item. See also static rank.
dynamic teaser: See hit highlighted summary.
internal property: A predefined, searchable field that can appear in query results and cannot be modified by changing the configuration settings for managed properties.
managed property: A specific property that is part of a metadata schema. It can be exposed for use in search queries that are executed from the user interface.
query processing: In a search service application, a series of operations, such as applying synonym and stemming expansion rules to the query text, that are performed before a search query is executed against a search index.
result set: A list of records that results from running a stored procedure or query, or applying a filter. The structure and content of the data in a result set varies according to the implementation.
search service application: A shared service application that provides indexing and querying capabilities.
stemming: A type of query expansion that factors relationships between words by reducing inflected words to their stem form or expanding stems to their inflected forms. For example, the words "swimming" and "swam" can be associated with the stem "swim."
token: A word in an item or a search query that translates into a meaningful word or number in written text. A token is the smallest textual unit that can be matched in a search query. Examples include "cat", "AB14", or "42".
UTF-8: A byte-oriented standard for encoding Unicode characters, defined in the Unicode standard. Unless specified otherwise, this term refers to the UTF-8 encoding form specified in [UNICODE5.0.0/2007] section 3.9.
MAY, SHOULD, MUST, SHOULD NOT, MUST NOT: These terms (in all caps) are used as defined in [RFC2119]. All statements of optional behavior use either MAY, SHOULD, or SHOULD NOT.