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Quantity valuation message
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.
1.1. 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
This message type may be applied for both national and international trade. It is based on universal practice and is not dependent on the type of business or industry. The following descriptions refer to the construction industry as an example, but do not exclude other business sectors' implementation.
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.
See UNTDID, Part 4, Chapter 2.6 UN/ECE UNSM - General Introduction, Section 1.
3. 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 Branching Diagram and the Segment Table which indicate mandatory, conditional and repeating requirements.
4.1.1. Header section
Information to be provided in the Header section:
0010 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:
0020 BGM, Beginning of message
A segment for unique identification of the Quantity Valuation document name, number and function.
0030 DTM, Date/time/period
A segment specifying the dates that apply, e.g. date of valuation, date of submission, acceptance date, etc.
0040 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.
0050 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.
A group of segments for quoting references and their relevant dates that are applicable to the message.
0070 RFF, Reference
A segment for quoting references that are applicable to this message, e.g. contract identity, operational references, former valuation reference number.
0080 DTM, Date/time/period
Date of references quoted in the previous RFF segment.
A group of segments identifying the parties with associated information.
0100 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.
0110 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.
0120 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.
A group of segments for giving references only relevant to the specified party rather than the whole valuation.
0140 RFF, Reference
A segment identifying the reference by its number and where appropriate a line number within a document.
0150 DTM, Date/time/period
A segment specifying the date and/or time related to the reference.
A group of segments identifying the documentary requirements of the specified party.
0170 DOC, Document/message details
A segment identifying and providing information relating to the documents required by the party specified by the NAD.
0180 DTM, Date/time/period
A segment specifying the date and/or time of the document.
A group of segments giving contact details of the specific person or department within the party identified in the NAD segment.
0200 CTA, Contact information
A segment to identify a person or department, and their function, to whom communications should be directed.
0210 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:
0230 BII, Structure identification
A segment to identify the item of work (or group of items) to which the quantities apply.
0240 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.
0250 QTY, Quantity
A segment giving the quantity of works performed, in cumulative, last period cumulative, quantity of the period, and other forms as required.
0260 PRI, Price details
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.
0280 LIN, Line item
A segment to record a qualifier specifying that we are at item level.
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.
0300 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.
0310 RFF, Reference
A segment used to record up to two text reference numbers per item description line.
0320 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.
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.
0340 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.
0350 MOA, Monetary amount
A segment specifying the amount for the identified tax/fee.
0360 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:
0370 CNT, Control total
A segment by which control totals may be provided by the sender for checking by the receiver.
0380 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)
4.3. Message structure
4.3.1. Segment table
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