Changes between Version 8 and Version 9 of FCS-Specification-ScrapBook

Timestamp:

02/03/14 14:38:17 (10 years ago)

Author:

oschonef

Comment:

--

FCS-Specification-ScrapBook

@@ -121 +121 @@
 SRU (!Search/Retrieve via URL) specifies a general communication protocol for searching and retrieving records and the CQL (Contextual Query Language) specifies a extensible query language. CLARIN-FCS is built on SRU 1.2; subsequent specification may built on SRU 2.0.
 
-Endpoints `MUST` implement the SRU/CQL protocol suite as defined in [#REF_SRU_Overview OASIS-SRU-Overview], [#REF_SRU_APD OASIS-SRU-APD], [#REF_CQL OASIS-CQL], [#REF_Explain SRU-Explain], [#REF_Scan SRU-Scan], especially with respect to:
+Endpoints and Clients `MUST` implement the SRU/CQL protocol suite as defined in [#REF_SRU_Overview OASIS-SRU-Overview], [#REF_SRU_APD OASIS-SRU-APD], [#REF_CQL OASIS-CQL], [#REF_Explain SRU-Explain], [#REF_Scan SRU-Scan], especially with respect to:
  * Data Model,
  * Query Model,
@@ -128 +128 @@
  * Diagnostics Model    
 
-Endpoints `MUST` use the implement the APD Binding for SRU 1.2, as defined in [#REF_SRU_12 OASIS-SRU-12]. Endpoints `MAY` implement APD binding for version 1.1 or version 2.0.
+Endpoints and Clients `MUST` use the implement the APD Binding for SRU 1.2, as defined in [#REF_SRU_12 OASIS-SRU-12]. Endpoints and Clients `MAY` implement APD binding for version 1.1 or version 2.0.
 
-Endpoints `MUST` use the following namespace URIs for serializing responses:
+Endpoints and Clients `MUST` use the following namespace URIs for serializing responses:
  * `http://www.loc.gov/zing/srw/` for SRU response documents, and
  * `http://www.loc.gov/zing/srw/diagnostic/` for diagnostics within SRU response documents.
 CLARIN-FCS deviates from the OASIS specification [#REF_SRU_Overview OASIS-SRU-Overview] and [#REF_SRU_12 OASIS-SRU-12] to ensure backwards comparability with SRU 1.2 services as they where defined by the [#REF_LOC_SRU_12 LOC-SRU12].
+
+Endpoints or Clients `MUST` support CQL conformance ''Level 2'' (as defined in [#REF_OASIS_CQL OASIA-CQL, section 6]), i.e. ab to ''parse'' (Endpoints) or ''serialize'' (Clients) all of CQL and respond with appropriate error messages to the search/retrieve protocol interface.
+
+'''NOTE''': this does '''not imply''', that endpoints are ''required'' support for all of CQL, but rather that they are able to ''parse'' all of CQL and generate the appropriate error message, if a query includes a feature they do not support.