Glossary of Terms

Term: Source Data Release Description: (SDR) A data set obtained from a source, constituting all the current assignments in the source. Sometimes simply referred to as a 'Data Release'. Not to be confused with a UDR. Term: src_release_number Description: A release number, as defined by the source, for a particular SDR. Each source is defined as having either a 'date' or a 'number' for identifying different SDRs. Term: src_release_date Description: A release date, as obtained from the source, for a particular SDR. Each source is defined as having either a 'date' or a 'number' for identifying different SDRs. Term: Release_U Description: (RU) UniChem-generated integers (One for each source) incremented by 1 for each Data Load from that source. For example, if, for a given source, the CRU is 4 then a total of 4 SDRs have been loaded for this source. Term: Current Release_U Description: (CRU) The current Release_U for a particular source Term: Data Load Description: The process of adding a single 'Source Data Release' into UniChem. Term: UniChem Load Index Description: (UC_LOAD_INDEX, or ULI) A UniChem-generated integer incremented by 1 for each successful Data Load from any source. The current ULI therefore indicates the total number of separate Data Loads from all sources. Term: UniChem Data Release Description: (UDR) Data is loaded into UniChem in a 'production' instance of the database. After several data loads, a copy is made of this database and is made available to users. Each new UDR may therefore contain several additional ULI's compared to the last UDR Term: UniChem Data Release Index Description: (UDRI) An integer indicating the number of the UDR. Also called a 'UC_RELEASE_NUMBER', or 'UC Rel No.' Term: Query Data Type Description: (QDT) The permitted Data Types for querying UniChem. Four such Types exist: src_id, src_compound_id, InChI and InChI Key. As defined elsewhere