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GB/T 27702-2011 English PDF

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GB/T 27702-2011: Information and documentation -- Information retrieval (Z39.50) -- Application service definition and protocol specification
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Basic data

Standard ID GB/T 27702-2011 (GB/T27702-2011)
Description (Translated English) Information and documentation -- Information retrieval (Z39.50) -- Application service definition and protocol specification
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard A14
Classification of International Standard 35.240.30
Word Count Estimation 199,162
Date of Issue 2011-12-30
Date of Implementation 2012-05-01
Quoted Standard GB/T 15695-1995; GB/T 16262-1996; GB/T 16263-1996; GB/T 16687.1-2008; GB/T 16688-2008; ANSI/NISO Z39.53-1994; ANSI/NISO Z39.58-1992; ISO 2709-1996; ISO 4217-1990; ISO 7498-1984; ISO 8649-1987; ISO 8777-1993; ISO 8822-1988; ISO 8824-1990; ISO 8825-1990; ISO 10160-1997; ISO 10161-1-1997; ISO 10163-1-1993; ISO 8650-1988
Adopted Standard ISO 23950-1998, IDT
Regulation (derived from) Announcement of Newly Approved National Standards No. 22 of 2011
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the information retrieval application service definition and protocol specification. Service definition part describes in an application for searching and obtaining information from the database services, protocol specification protocol control information section includes the definition of the rules of the information exchange, and the implementation of protocol conformance requirements need to be met. This standard applies to support information retrieval service systems, as well as information service providers, universities, libraries, organizations such as the United cataloging center.

GB/T 27702-2011: Information and documentation -- Information retrieval (Z39.50) -- Application service definition and protocol specification


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Information and documentation. Information retrieval (Z39.50). Application service definition and protocol specification ICS 35.240.30 A14 National Standards of People's Republic of China Information and Documentation Information Retrieval (Z39.50) Application service definition and protocol specification Informationanddocumentation-Informationretrieval (Z39.50) - (ISO 23950.1998, IDT) Issued on. 2011-12-30 2012-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Preface Ⅰ Introduction Ⅱ 1 Scope 1 2 Normative references 1 3 Terms and definitions 2 4 Information Retrieval Service 10 4.1 model and features of information retrieval services 11 4.2 Information Retrieval Service Mechanism 13 4.3 Message/record length and fragment 53 4.4 Operation and identified 58 references 4.5 58 concurrent operation 4.6 Composition Specification 59 4.7 Type-1 and Type-101 query Query 60 5 Protocol Specification 63 5.1 Z39.50APDU and ASN.1 abstract syntax specification 63 5.2 protocol process 79 5.3 Extensibility rule 88 5.4 Consistency 88 Appendix A (Normative Appendix) OID. Z39.50 object identifiers 95 Appendix B (Normative Appendix) CTX. application environment basic-Z39.50-ac 98 Appendix C (Normative Appendix) ATR. a set of attributes 99 Annex D (normative appendix) ERR. Troubleshooting 105 Appendix E (Normative Appendix) REC. record syntax 114 Appendix F (Normative Appendix) RSC. 137 Resources Report Format Annex G (Normative Appendix) ACC. Access control format 139 Appendix H (normative appendix) EXT. The standard definition of extended service 142 Annex I (normative appendix) USR. user information format 157 Appendix J (Normative Appendix) ESP. 160 element specification format Annex K (Normative Appendix) VAR. 162 set of variables Annex L (Normative Appendix) TAG. tag set definitions and modalities 165 Appendix M (Informative Appendix) ERS. Extended Architecture Sets Model 169 Appendix N (Informative Appendix) RET. Z39.50 Request 171 Appendix O (Informative Appendix) PRO. Z39.50 framework document 189 Appendix P (informative) Maintenance Agency designated 190

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard is equivalent to international standard ISO 23950.1998 "Information and documentation - Information retrieval (Z39.50) application service definition and protocol specification". The standard international standard ISO 23950.1998 in the translation made changes, technical contents were not changed. This standard has 16 appendices. Appendix Appendix A ~ L is a normative appendix, Appendix Appendix M ~ P is informative appendix. This standard by the National Information and Documentation Standardization Technical Committee (SAC/TC4) and focal points. This standard was drafted. China Defense Science and Technology Information Center, China Science and Technology Information Institute, Beijing University. The main drafters of this standard. true Qin, Gong Changming, Tang Shan Hong, Lee Soo Jin, Zhao Jinwei, Feng Haitao, Chen Ling.

Introduction

It does not refer to the standard version. Z30.50-1992 predetermined protocol version 2; Z39.50-1995 provisions version 2 and version 3 protocol. Z39.50-1992 replaces the outdated Z39.50-1988, however, Z39.50-1992 and the relationship between the Z39.50-1995 completely different. Z39.50-1995 is compatible with the 1992 version of the superset, implementers can get the full version 2 from the Z39.50-1995 Details, and compatibility with Z39.50-1992. Protocol Basics This agreement describes the format and procedures between the client and server exchange of information so that the client can (a) a request to search for a server Database and identify the records to meet the specific requirements, (b) obtain a copy of some or all of the identified record. The client can create a request on behalf of the user. This protocol describes (may be located on different computers) between the client and the server Communication; not describe the interaction between the client and the user. Z39.50-1992 and ISO 23950 supports the following basic functions. the client can send search requests to one or more specified number Databases, and includes a search query and for determining whether the records as part of the return parameter response. To identify the server A number of records as a response, and may return some or all of the records. Then, the client can request the selected record. Suppose the client search Cable to record the formation of a "result set" (an ordered set, the order is determined by the server), these records according to their focus on results The position reference. Optional features include. In some cases, when the client does not wish to receive complete database records, you can specify a set of data elements, intended to indicate the requested data yuan. For example, a client can specify "If the recognized record is less than or equal to 5, the transmission 'complete' record; if more than 5, then pass Lose 'brief' records. " A client can specify the preferred response to record syntax, for example. USMARC. The client may name a result set for later reference. The client may delete a named result set. Before the server can process the request in order to request verification of clients have access control. The server can send a non-solicitation or solicitation of status reports, providing resource control; the server may suspend processing and allow the customer Client indicates whether to continue. Query Expression Supports ISO 23950 Type-1 queries to make detailed provisions and requirements. Type-1 query a search term with a table Shown, each search entry has a set of attributes, such as the type specified in (topic, name, etc.) the search terms, would have been cut off, and the knot of a search term Structure. The server is responsible for these properties are mapped to the logical database design. In a Type-1 query, the search term can be cloth Seoul operators combined. These search terms and operators to reverse Polish notation indicates. Attribute Set Attributes associated with a search term belong to a particular set of attributes, defined through registration, which is to be assigned a Unique, globally recognized, in the query object contains an identifier that property set identifier. Appendix CATR defined and registered attribute set bib-1, which describes the various attributes for bibliographic queries. bib-1 attribute set by the book Community development projects; if necessary, other groups can develop and register a set of attributes. Additional attributes can be set in addition to ISO 23950 registered. Response Records The agreement appears in the server's response message records are divided into two categories. the database records and diagnostic records. Appendix EREC register various object identifiers MARC formats, including USMARC, UKMARC, NorwayMARC And CANMARC; database records returned by the server with the object identifier. This annex defines several other types of recording format Style, and provides for the registration of additional recording format method. Diagnostic record is also identified with the format of the object identifier. Appendix DERR defined and registered two diagnostic record formats (Z39.50-1992 defines one), it includes a variety of diagnostic codes for bibliographic applications. You can also register other diagnostic records format. New Features Following is a summary of the enhancements Z39.50-1995 (with respect to the 1992 version). "2nd edition" and "version 3" are two version of the protocol This; "Z39.50-1992" and "Z39.50-1995" is the standard two versions. With a "Z39.50-1995 new features" described Characteristics generally applicable to the two protocol versions. Such as scanning. scan the perpetrators can be added to an existing service real Z39.50-1992 Now without having to use other new features. The following four categories of the enhancements are described. search, obtain, new services and mechanisms, as well as other enhanced features. search for Attributes. Set of attributes and has many new features. In the third edition, a single query (even a single search term) in the properties can be From a different set of attributes. This has two advantages. first, this feature can be used to search multiple databases (although version 2 supports multiple data Library search, but a query that contains all the properties must belong to a single set of attributes, which restricts the ability to search multiple databases, in addition to These non-database similar); second, when defining a new set of attributes that can reduce duplication. Version 3 adds two flexibility to define a set of attributes new features. First, it defines a new data type for the property value (in the second Version, property values \u200b\u200bcan only be numeric). The second is to define the set of attributes can now list some alternative evaluation rules (for example, whether to allow the service It is considered more appropriate use of property instead of a property), and choose one of the rules of the query. Enhanced bib-1 attribute set The definition adopted this new feature. In Z39.50-1995 (except Z39.50-1992 contains all the attributes), bib-1 definition also includes many new attributes. Extended Result Set Model. Z39.50-1992 developed the basic model of the result set; 1995 edition describes the "extended result set model" This model supports extended proximity searching. It defines the format encryption and authentication, and define the server to the client to allow prompt various information formats. Character set support. It introduced a string of new data types, namely "InternationalString" (International String). It's set Righteousness so that the client and server can be more flexibility to determine the use of a particular language and one or more character sets in a single session. unit of measurement. In support of units of measurement, we introduce a new data type. These definitions allow the use of a standard way to represent the unit of measure Types and units of measurement. For example, the type of unit of measure is "quality", the unit of measure is "kg." Scalability and consultations. Version 3 provides a powerful extensibility. Each protocol message contains a field used to indicate the outer Ministry of Information who defined format. These external format defined by ISO 23950 as a temporary extension and experimental use by the Z39.50 Maintenance for registration and management, and are likely to be incorporated into future versions. Z39.50-1995 introduced the concept of "negotiation record". Client initialization message may contain consult records to recommend some Whether the conditions in the session work (for example, the use of a particular language and one or more character sets). Server can respond indicating Construction Meeting whether to accept or make a counter-proposal. Consultation record is new scalable application characteristics. Consultation records can be defined externally by the Z39.50 maintenance department maintenance. Information and Documentation Information Retrieval (Z39.50) Application service definition and protocol specification

1 Scope

This standard specifies the information retrieval application service definition and protocol specification. Service definition section describes the implementation of an application search Service and request information in a database; Protocol specification includes a protocol control section definition information, the rules of the exchange of information, and the implementation of the Association Yee need to meet the conformance requirements. This standard applies to support information retrieval service system, as well as information services, universities, libraries, catalog center so Organization. NOTE. Z39.50 There are three publications. Z39.50-1988, Z39.50-1992 and Z39.50-1995; there is a search and retrieval protocol publications. ISO 10163-1.1993. Z39.50-1992, ISO 10163-1.1993 and Z39.50-1995 (not including Z39.50-1988) three publications body Now the concept of protocol versions, and defines three protocol versions. Version 1, Version 2 and Version 3. ISO 10163-1.1993 based on the first version of the agreement; Z39.50-1992 based on version 2 protocol; Z39.50-1995 based protocol version 2 and version 3 protocol. (Z39.50-1988 nothing to do with the protocol version.) The standard is based on version 2 and version 3 protocol. It is assumed that the first version and the second version is the same, to support the implementation of the automatic version 2 supports Version 1 (another In addition, any other place in this standard does not refer directly to the first edition). This standard applies only to the version 2 or version 3 of the process, we were given Note.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 15695-1995 Information technology - Open Systems Interconnection - Presentation service definition (ISO /IEC 8822.1994, IDT) GB/T 16262-1996 (all parts), Information technology - Abstract Syntax Notation (ASN.1) specification (ISO /IEC 8824.2002, IDT) GB/T 16263-1996 (all parts), Information technology - ASN.1 encoding rules (ISO 8825.2002, IDT) Part 1 GB/T 16687.1-2008 Information technology - Open Systems Interconnection association control service element connection-oriented protocol Score. Protocol specification (ISO 8650-1.1996, IDT) GB/T 16688-2008 Information technology - OSI Association Control Service Element Service Definition (ISO /IEC 8649. 1996, IDT) ANSI/NISO Z39.53-1994 languages \u200b\u200bCodes for the representation of information exchange (Codesfortherepresentationoflanguages forinformationinterchange) Common command language ANSI/NISO Z39.58-1992 online interactive information retrieval (Commoncommandlanguage foronlineinteractiveinformationretrieval) ISO 2709.1996 Information and documentation - Information Interchange Format (Informationanddocumentation-Formatforinfor- mationexchange) ISO 4217.1990 represents cash and currency codes (Codesfortherepresentationofcurrenciesandfunds) ISO 7498. 1984 Information processing systems - Open Systems Interconnection - Basic Reference Model (Informationprocessingsystems- Opensystemsinterconnection-Basicreferencemodel) ISO 8649. 1987 Information processing systems - OSI association control service element defines the Service (Informationpro-

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