0.    INTRODUCTION

       This specification provides the definition of the Quantity
       valuation message (CONQVA) to be used in Electronic Data
       Interchange (EDI) between trading partners involved in
       administration, commerce and transport.

1.    SCOPE

1.1   Functional Definition

       Typically, this message will be used for a contractor to submit
       progress details to a client or his representative. The message
       will be used also for subsets of the project where work has
       been contracted out to other parties. In these cases the
       exchange would be between the subcontractor and the party that
       subcontracted the work.

1.2   Field of Application

       The following descriptions refer to the construction industry
       as an example, but do not exclude other business sectors'
       implementation.

1.3   Principles

       This message is to be used to support the business of
       exchanging progress information for groups of work items which
       make up a construction project.
       
       There are several examples within the construction process
       where one party is required to advise another party about the
       quantity of work performed for a specific time period or since
       the start of the project.
       
       A project may be subdivided into individual groupings of work
       referred to as items and it is against these items that
       progress quantities are reported.
       
       During the design of this message every effort has been made to
       adopt a "generic" approach and it seems possible that other
       industries may find this a suitable message to adopt.
       
       This is only one of a number of messages being designed for the
       Construction industry. This particular message refers to
       already established items of work, these items will be defined
       at the start of a project. Work is well advanced on suitable
       EDI messages to address this part of the process.
       
       Allowance has been made within the CONQVA message for "new"
       items of work. There are a number of reasons why additional
       items of work will occur once a project has started.
       
       Each work item may contain more than one quantity and this has
       been accommodated. An example of this would be the quoting of
       both a cumulative and a "this period" quantity.

2.    REFERENCES

       See UNTDID, Part 4, Chapter 2.6 UN/ECE UNSM - General Introduction,
       Section 1.

3.    TERMS AND DEFINITIONS

3.1   Standard terms and definitions

       See UNTDID, Part 4, Chapter 2.6 UN/ECE UNSM - General Introduction,
       Section 2.

4.    MESSAGE DEFINITION

4.1   Data Segment Clarification

       This section should be read in conjunction with the Segment
       Table which indicate mandatory, conditional and repeating
       requirements.

4.1.1  Header section

       Information to be provided in the Header section:

   UNH, Message header
       A service segment starting and uniquely identifying a message.
       The message type code for the Quantity valuation message is
       CONQVA.
       
       Note: Quantity valuation messages conforming to this document
       must contain the following data in segment UNH, composite S009:

       Data element  0065 CONQVA
                     0052 D
                     0054 97B
                     0051 UN

   BGM, Beginning of message
       A segment for unique identification of the Quantity Valuation
       document name, number and function.

   DTM, Date/time/period
       A segment specifying the dates that apply, e.g. date of
       valuation, date of submission, acceptance date, etc.

   AUT, Authentication result
       A segment used to authenticate the message by exchanging a
       password or some other form of identification agreed between
       the trading partners.

   FTX, Free text
       A segment with free text information, in coded or clear form,
       used for any textual qualification. In computer to computer
       exchanges, such text will require the receiver to process this
       segment manually.


   Segment group 1: RFF-DTM
       A group of segments for quoting references and their relevant
       dates that are applicable to the message.

      RFF, Reference
          A segment for quoting references that are applicable to this
          message, e.g. contract identity, operational references,
          former valuation reference number.

      DTM, Date/time/period
          Date of references quoted in the previous RFF segment.


   Segment group 2: NAD-LOC-FII-SG3-SG4-SG5
       A group of segments identifying the parties with associated
       information.

      NAD, Name and address
          A segment identifying names and addresses of the parties, in
          coded or clear form, and their functions relevant to the
          valuation. It is recommended that where possible only the
          coded form of the party ID should be specified. e.g. The
          contractor and client are known to each other, thus only the
          coded ID is required, but the subcontractors addresses may
          vary and would have to be clearly specified, preferably in
          structured format.

      LOC, Place/location identification
          A segment giving more specific location information of the
          party specified in the NAD segment e.g. internal
          site/building number.

      FII, Financial institution information
          A segment identifying the financial institution (e.g. bank)
          and relevant account numbers for the contractor, client and
          where necessary other parties.


      Segment group 3: RFF-DTM
          A group of segments for giving references only relevant to
          the specified party rather than the whole valuation.

         RFF, Reference
             A segment identifying the reference by its number and
             where appropriate a line number within a document.

         DTM, Date/time/period
             A segment specifying the date and/or time related to the
             reference.


      Segment group 4: DOC-DTM
          A group of segments identifying the documentary requirements
          of the specified party.

         DOC, Document/message details
             A segment identifying and providing information relating
             to the documents required by the party specified by the
             NAD.

         DTM, Date/time/period
             A segment specifying the date and/or time of the
             document.


      Segment group 5: CTA-COM
          A group of segments giving contact details of the specific
          person or department within the party identified in the NAD
          segment.

         CTA, Contact information
             A segment to identify a person or department, and their
             function, to whom communications should be directed.

         COM, Communication contact
             A segment to identify a communications type and number
             for the contact specified in the CTA segment.

4.1.2  Detail section

       Information to be provided in the Detail section:


   Segment group 6: BII-RCS-QTY-PRI-SG7-SG9
       A group of segments providing the quantities and the
       corresponding prices of the works performed for each item, or
       group of items.

      BII, Structure identification
          A segment to identify the item of work (or group of items)
          to which the quantities apply.

      RCS, Requirements and conditions
          A segment to provide requirements that are applicable to the
          whole group of segments: financial status (when an item is
          added to the BOQ, dayworks for example), and an action
          request.

      QTY, Quantity
          A segment giving the quantity of works performed, in
          cumulative, last period cumulative, quantity of the period,
          and other forms as required.

      PRI, Price details
          A segment used to indicate the unit price of the items. This
          segment is to be used in conjunction with SG7 and SG9 when
          an item is created in the quantity valuation, e.g. dayworks.


      Segment group 7: LIN-SG8
          A group of segments to record descriptive text for items
          that are added into existing groups during the completion of
          the works, e.g. dayworks.

         LIN, Line item
             A segment to record a qualifier specifying that we are at
             item level.


         Segment group 8: IMD-RFF-GIS
             A group of segments to record the description line
             details together with text reference numbers and change
             action codes used to identify who is authorised to apply
             changes.

            IMD, Item description
                This segment is used to convey any descriptive
                material to be recorded for the item. This descriptive
                material can apply to the item description and item
                heading information.

            RFF, Reference
                A segment used to record up to two text reference
                numbers per item description line.

            GIS, General indicator
                A segment used to record up to two text change action
                codes per item description line. In this context
                suppression is not allowed.


      Segment group 9: TAX-MOA-LOC
          A group of segments specifying tax related information for
          this item when it is specific to this item or different from
          the group to which it belongs, and when necessary, the
          location(s) to which that tax information relates. This
          group is to be used only when the item is created in the
          quantity valuation, e.g. dayworks and the relevant tax is
          different to the one described to group referred to in BII.

         TAX, Duty/tax/fee details
             A segment specifying a tax type, category and rate, or
             exemption, relating to the group of items referred to in
             BII, e.g. Value Added Tax at the standard rate is
             applicable for all items.

         MOA, Monetary amount
             A segment specifying the amount for the identified
             tax/fee.

         LOC, Place/location identification
             A segment indicating the location to which the tax or
             exemption specified in the TAX segment applies, e.g. city
             or state or country tax.

4.1.3  Summary section

       Information to be provided in the Summary section:

   CNT, Control total
       A segment by which control totals may be provided by the sender
       for checking by the receiver.

   UNT, Message trailer
       A service segment ending a message, giving the total number of
       segments in the message and the control reference number of the
       message.

4.2   Data segment index (Alphabetical sequence by tag)

          AUT Authentication result
          BGM Beginning of message
          BII Structure identification
          CNT Control total
          COM Communication contact
          CTA Contact information
          DOC Document/message details
          DTM Date/time/period
          FII Financial institution information
          FTX Free text
          GIS General indicator
          IMD Item description
          LIN Line item
          LOC Place/location identification
          MOA Monetary amount
          NAD Name and address
          PRI Price details
          QTY Quantity
          RCS Requirements and conditions
          RFF Reference
          TAX Duty/tax/fee details
          UNH Message header
          UNT Message trailer

Contents of CONQVA