0. INTRODUCTION
1. SCOPE
   1. Functional definition
   2. Field of application
   3. Principles
2. REFERENCES
3. TERMS AND DEFINITIONS
   1. Standard terms and definitions
   2. Message terms and definitions
4. MESSAGE DEFINITION
   1. Segment clarification
   2. Segment index (alphabetical sequence by tag)
   3. Message structure
      1. Segment table

This specification provides the definition of the Classification information set message (CLASET) to be used in Electronic Data Interchange (EDI) between trading partners involved in administration, commerce and transport.

The Classification information set message is designed to exchange tree structure or code lists and the links between them. These will be subsequently referred to as classifications. CLASET covers the transmission of general information on classifications, all or part of the content or structure of a classification, data maintenance operations on classifications, all or part of the links between classifications, and, any combination of the above.

The Classification information set message may be used for both national and international applications. It is based on universal practice related to administration, commerce and transport, and is not dependent on the type of business or industry.

The acronym, CLASET, stands for Classification information set message and comprises a number of parts:

1. Identification of administrative information concerning the interchange partners; ii) General information about the classification or the table of links sent such as the responsible agency, a historical list of the maintenance operations made on the classification or the table of links, subsequently referred to as events, or a generic property used to define attributes related to the classification or table of links; iii) Structure of the classification or table of links such as levels and items of a classification or relations contained in a table of links; iv) identification of the source and target objects of a link. For each structure component (level, item or link) or related component of a link, it is possible to attach generic properties and events. Events are also related to properties. The message has been designed in a generic way and provides mechanisms to describe the nature of the information exchanged within it. The message can be used to exchange requests and responses. This message will be used by organisation involved in data maintenance operations on classifications (e.g. compilers of classifications and maintenance agencies of code lists) and by users of classifications (e.g. statistical agencies, customs, enterprises making official declarations, administrations). Examples of tree structure or code lists are: official and statistical classifications, customs tariffs, organisation charts. Examples of links are correspondence tables between official classifications.

See UNTDID, Part 4, Chapter 2.3 UN/ECE UNSM - General Introduction, Section 1.

See UNTDID, Part 4, Chapter 2.3 UN/ECE UNSM - General Introduction, Section 2.

Data maintenance in the context of this message specification means the addition, deletion, or change to an object in a classification, such as the addition of an item, or the change to the description of an item.

This section should be read in conjunction with the segment table which indicates mandatory, conditional and repeating requirements.

0010 UNH, Message header

A service segment starting and uniquely identifying a message. The message type code for the Classification information set message is CLASET.

Note: Classification information set messages conforming to this document must contain the following data in segment UNH, composite S009:

0020 BGM, Beginning of message

A segment specifying the functional use (e.g. request) of the Classification information set message.

0030 DTM, Date/time/period

A segment identifying the message preparation date/time.

0040 Segment Group 1: RFF-DTM

A group of segments to specify references such as the request message to which the current message relates, and related date and time.

0050 RFF, Reference

A segment to specify the reference number.

0060 DTM, Date/time/period

A segment to specify the date and time of the reference.

0070 Segment Group 2: PNA-ADR-SG3

A group of segments identifying the sender, the requester (if the message function is a response to a request) and other relevant parties, their reference and the communication contact inside the corresponding organisations.

0080 PNA, Party identification

A segment identifying a party.

0090 ADR, Address

A segment identifying the address of the party.

0100 Segment Group 3: CTA-COM

A group of segments giving contact information.

0110 CTA, Contact information

A segment identifying a person or department for the party identified in the PNA segment and to whom communication should be directed.

0120 COM, Communication contact

A segment containing communication information for the contact identified in the CTA segment.

0130 Segment Group 4: VLI-DTM-EQN-SG5-SG7-SG8-SG11

A group of segments identifying a classification or a table of links, and defining the items and, if the list is hierarchic, the levels in the classification or table of links.

0140 VLI, Value list identification

A segment identifying a classification or a table of links.

0150 DTM, Date/time/period

A segment defining the interval of validity and other relevant dates for the classification, or the table of links.

0160 EQN, Number of units

A segment defining the number of objects (e.g. levels or items) in the classification or the table of links.

0170 Segment Group 5: PNA-LAN-SG6

A group of segments identifying a responsible agency for the classification or the table of links and its role (e.g. compilation, ongoing maintenance, dissemination).

0180 PNA, Party identification

A segment identifying an agency and its role.

0190 LAN, Language

A segment identifying the language of the agency.

0200 Segment Group 6: CTA-ADR-COM

A group of segments giving contact information.

0210 CTA, Contact information

A segment identifying a person or a department for the agency and to whom communication should be directed.

0220 ADR, Address

A segment defining address details for the contact person or department.

0230 COM, Communication contact

A segment containing communication details for the person or the department identified in the CTA segment.

0240 Segment Group 7: STS-DTM

A group of segments defining a status event for the classification or the table of links such as created, updated or deleted and the relevant dates of the status event.

0250 STS, Status

A segment identifying a status event for the classification or the table of links.

0260 DTM, Date/time/period

A segment defining relevant dates for the status event.

0270 Segment Group 8: ATT-DTM-ELM-SG9-SG10

A group of segments identifying a property for the classification, or table of links.

0280 ATT, Attribute

A segment identifying a property function and a property type.

0290 DTM, Date/time/period

A segment defining an interval of validity and other relevant dates for the property.

0300 ELM, Simple data element details

A segment identifying the data type and format of the property value.

0310 Segment Group 9: CAV-FTX

A group of segments defining a textual property value.

0320 CAV, Characteristic value

A segment defining a characteristic of a textual property value.

0330 FTX, Free text

A segment defining a textual property value and the language of the text.

0340 Segment Group 10: STS-DTM

A group of segments defining a status event for the property and the relevant dates of the status event.

0350 STS, Status

A segment identifying a status event for the property.

0360 DTM, Date/time/period

A segment defining relevant dates for the status event.

0370 Segment Group 11: SCD-DTM-EQN-SG12-SG13-SG16

A group of segments identifying a structure component in a classification, or a table of links.

0380 SCD, Structure component definition

A segment identifying the type of structure component (e.g. level, item or link) and the component itself.

0390 DTM, Date/time/period

A segment defining the interval of validity and other relevant dates for the structure component.

0400 EQN, Number of units

A segment defining the number of structure components in the identified level of hierarchy structure, such as the number of items in the level.

0410 Segment Group 12: STS-DTM

A group of segments defining a status event for the structure component and the relevant dates of the status event.

0420 STS, Status

A segment identifying a status event for the structure component.

0430 DTM, Date/time/period

A segment defining relevant dates for the status event.

0440 Segment Group 13: ATT-DTM-ELM-SG14-SG15

A group of segments identifying a property of the structure component.

0450 ATT, Attribute

A segment identifying a property function and a property type.

0460 DTM, Date/time/period

A segment defining an interval of validity and other relevant dates for the property.

0470 ELM, Simple data element details

A segment identifying the data type and format of the property value.

0480 Segment Group 14: CAV-FTX

A group of segments defining a textual property value.

0490 CAV, Characteristic value

A segment defining a characteristic of a textual property value.

0500 FTX, Free text

A segment defining a textual property value and the language of the text.

0510 Segment Group 15: STS-DTM

A group of segments defining a status event for the property and the relevant dates of the status event.

0520 STS, Status

A segment defining a status event for the property.

0530 DTM, Date/time/period

A segment defining relevant dates for the status event.

0540 Segment Group 16: IDE-DTM-EQN-SG17-SG18

A group of segments identifying a source or a target related structure component (e.g. item or level) of a link and defining the status and properties of this component.

0550 IDE, Identity

A segment identifying the related structure component such as a level or an item in a link.

0560 DTM, Date/time/period

A segment defining an interval of validity and other relevant dates for the related structure component.

0570 EQN, Number of units

A segment defining the number of structure components in the identified level of hierarchy structure, such as the number of items in the level.

0580 Segment Group 17: STS-DTM

A group of segments defining a status event for the related structure component and the relevant dates of the status event.

0590 STS, Status

A segment identifying a status event for the related structure component.

0600 DTM, Date/time/period

A segment defining relevant dates for the status event.

0610 Segment Group 18: ATT-DTM-ELM-SG19-SG20

A group of segments defining a property for the related structure component.

0620 ATT, Attribute

A segment identifying the property function and the property type.

0630 DTM, Date/time/period

A segment defining an interval of validity and other relevant dates of the property.

0640 ELM, Simple data element details

A segment defining the data type and format of the property.

0650 Segment Group 19: CAV-FTX

A group of segments identifying a textual property value.

0660 CAV, Characteristic value

A segment identifying a characteristic of the textual property value.

0670 FTX, Free text

A segment defining a textual property value and the language of the text.

0680 Segment Group 20: STS-DTM

A group of segments defining a status event for the property and relevant dates of the status event.

0690 STS, Status

A segment identifying a status event for the property.

0700 DTM, Date/time/period

A segment defining relevant dates for the status event.

0710 UNT, Message trailer

A service segment ending a message, giving the total number of segments in the message (including the UNH & UNT) and the control reference number of the message.