United Nations Directories  for Electronic Data Interchange for
Administration, Commerce and Transport



UN/EDIFACT






                                           Message Type : PROTAP
                                           Version      : D
                                           Release      : 01C
                                           Contr. Agency: UN

                                           Revision     : 2
                                           Date         : 2001-11-07






SOURCE: D7 Architecture, Engineering and Construction (SWG)



                               CONTENTS

                    Project tasks planning message

0.     INTRODUCTION

1.     SCOPE

       1.1   Functional definition

       1.2   Field of application

       1.3   Principles

2.     REFERENCES

3.     TERMS AND DEFINITIONS

       3.1   Standard terms and definitions

       3.2   Message terms and definitions

4.     MESSAGE DEFINITION

       4.1   Segment clarification
             4.1.1 Header section
             4.1.2 Detail section
             4.1.3 Summary section

       4.2   Segment index (alphabetical sequence by tag)

       4.3   Message structure
             4.3.1 Segment table








----------------------------------------------------------------------
For general information on UN standard message types see UN Trade Data
Interchange Directory, UNTDID, Part 4, Section 2.3, UN/ECE UNSM
General Introduction
----------------------------------------------------------------------



0.     INTRODUCTION

       This specification provides the definition of the Project tasks
       planning message (PROTAP) to be used in Electronic Data
       Interchange (EDI) between trading partners involved in
       administration, commerce and transport.

1.     SCOPE

1.1    Functional definition

       The Project Tasks Planning message is used in various industry
       sectors when there is a requirement for all parties involved to
       formally establish and exchange planning and scheduling
       information. This information describes the tasks and resources
       needed to complete a project or provide a service. This can
       include such details as what activities or tasks are involved,
       who is available to do the work, who is doing the work, what
       must be completed or delivered such as a document or goods, and
       when the work will be completed or when the item will be
       delivered. This document may be part of the contractual
       documents exchanged for the preparation, status, or completion
       of a project or service.

1.2    Field of application

       The Project tasks planning 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 industry sectors that typically exchange planning and
       scheduling information include construction, aerospace,
       aircraft, utility, defense, facility maintenance, automotive,
       and software development. Various government entities such as
       transportation, energy, space, and defense also exchange
       planning and scheduling information with their contractors
       related to construction, software development, research and
       development, and production. For departments or ministries of
       defense, this planning and scheduling information is typically
       part of the contractual requirements for weapon system
       acquisition and chemical or hazardous material disposal. 
       
       Although various regional and international differences do
       exist in the business terms used in a planning and scheduling
       environment, the underlying business requirements are similar.
       In many respects, the various commercial off the shelf
       application software used for planning and scheduling around
       the world have established a default set of common principles
       and data requirements. Where regional and international
       differences do exist in business terms, the design of the
       message is flexible enough to accommodate them.

1.3    Principles

       This message is designed to convey planning, scheduling, and
       resource information about a project and the business
       environment related to the project in a neutral data format.
       This information exchange can be bi-directional between the
       parties involved. Only data associated with one schedule or
       plan is exchanged per occurrence of this message. 
       
       This message is structured to support the exchange of the three
       main groups of independent yet interrelated information typical
       in a project management environment and commercial off the
       shelf application software. These main groups of information
       are represented as segment groups within this message and can
       be used independently or together as needed to fit the
       requirements of the project. The main groups of information are
       1) resource availability; 2) calendar information; and 3)
       activity or task details with related resource, calendar,
       milestone, and constraint information. 
       
       The header section in this message includes the resource
       availability segment group. The detail section in this message
       includes the calendar information and activity or task details.
       While all three groups of information can be classified as
       detail data, the resource availability segment group was placed
       in the header section to prevent segment collision. In
       addition, the resource availability and calendar information is
       only exchanged infrequently; the core of the message is the
       activity or task segment group as this is the data that needs
       to be exchanged frequently to adequately manage a project. 
       
       This message can be used to exchange resource availability,
       calendar, task and related information between commercial off
       the shelf or company unique program management software
       applications. This exchange can be internal to company; for
       example, when one or more divisions within a company use
       different software applications or when the company wants to
       establish a common, standard data exchange format. This
       exchange can also be external to a company; for example, when
       data must be exchanged with customers, suppliers, or
       subcontractors regardless of the application software used by
       all parties. 
       
       Project planning and scheduling information can be highly
       proprietary to a company. The parties exchanging this data may
       elect to use various methods to ensure only the right people
       have access to the data. 
       
       1.3.1 Resource Availability Information
       
       The resource availability group of segments is designed to
       convey information about company-wide resources that may be
       employed to complete work. This includes all types of resources
       such as labor, material, manufacturing or testing facilities,
       or capital used through out the company for all their
       contracts. Information about availability (percent of total
       time available or available dates a resource can be devoted to
       a project or task), efficiency factors, unit rate, inflation
       percentage, quantity, and cost can be described as needed.
       Typically, this resource availability information is only
       conveyed early in the initial planning or proposal stage of a
       project or in the event the business base of the company has
       changed significantly during the execution of a project plan.
       Depending on the business environment or requirements of the
       trading partners, this availability information may not be
       exchanged at all. 
       
       1.3.2 Calendar Information
       
       The calendar group of segments is designed to convey
       information about the working calendars used to plan and
       schedule work. This includes information about non-working
       days, working hours, and holidays. There may be multiple
       working calendars if there are working shifts, different
       company divisions doing the work, or subcontractors doing the
       work. Typically, this calendar information is only conveyed
       early in the initial planning or proposal stage, when work is
       set to begin, or when there are substantial changes to the
       working environment. 
       
       1.3.3 Activity or Task Information
       
       The activity or task related group of segments is the main
       focus of this message. It is used to convey information about
       the tasks that must be done or milestone events that must occur
       to complete the project plan as well as progress against the
       original plan, or changes to the original plan. This can
       include information about what must be done, when it must be
       done, and related details about the activity or task. Quantity,
       monetary amounts, and percentages can also be associated with
       the task for planning or tracking progress. An activity or task
       may include a calendar reference. This reference, when used,
       can relate to the calendar information segment group details. 
       
       1.3.4 Activity or Task Related Information
       
       Within the group of segments used to describe an activity or
       task is subordinate group of segments that can be used to
       describe items that are related to an activity or task. This
       includes the resources assigned to a task (who is doing the
       work or what is needed to complete the work such as materials
       or facilities), a list of milestone events (a way to measure
       progress on a task), and relationships or constraints between
       activities. Quantity, monetary amounts, percentages, and rates
       can also be associated with these related items for planning or
       tracking progress. 
       
       When resources are assigned to an activity or task, these
       resources may relate to the resource availability segment group
       information if the option of building the resource availability
       data was used for the project. A project office can perform
       additional planning and scheduling functions with the combined
       information of available resources and resources assigned to a
       task to determine if there are enough resources available
       company-wide to complete a task. This may require the activity
       to be extended or require the company to hire or secure more
       resources to complete the work. In addition, a resource may
       include a calendar reference. This reference, when used, can
       relate to the calendar information segment group details. 
       
       1.3.5 Milestone Information
       
       Milestones can be handled in two ways in this message. They can
       be treated as an activity that is an event (i.e., the activity
       or task segment group in the detail section) or they can be
       treated as a subordinate event assigned to a main activity
       (i.e., the subordinate segment group to the line item in the
       detail section). 
       
       1.3.6 Adding, Changing, and Deleting Information
       
       Add, change, and delete notations are included for available
       resources, index structure details, tasks, milestones, and
       items related to a task such as milestones, resources, and
       constraint activities. This allows this message to be used in
       two ways. The first and most simple method is to send a PROTAP
       message that includes an entire set of data to completely
       replace or overwrite old data. The second and more complex
       method is to send only the tasks, resources, milestones, and so
       forth that have been added, changed, or deleted. The
       capabilities of the receiving application or receiving party's
       business environment will dictate how this capability is used. 
       
       1.3.7 Status Information
       
       This message is designed to convey initial planning and
       scheduling information, replanning information, and periodic
       project status information. Initial planning and scheduling
       information is used to establish the original baseline plan or
       schedule data between parties. This baseline provides the
       foundation for comparison for status information as the project
       progresses. In the event a project runs into difficulties, it
       may be necessary to replan the balance of the project, with new
       baseline plan or schedule data exchanged between parties. The
       periodic status information conveyed between parties can
       include remaining duration, percent complete, or actual start
       and complete dates. Milestones, quantities, percentages, and
       monetary amounts can be used to calculate the value of the work
       completed. For the exchange of periodic status information,
       typically only agreed to key data for the plan or schedule are
       exchanged. This is a smaller subset of the data required to
       establish a baseline or rebaseline plan.
       
       1.3.8 Other Functionality
       
       Other functionality available in this message include the
       following:
       
       Relationships to other projects can be described with notations
       on the type of relationship such as a parent, child, or other
       related schedule whether internal or external. 
       
       Relationships to other documents can be described with
       notations on the type of document, and where needed,
       information about the computing environment used to produce or
       process the information. 
       
       Related index structures can be described and defined for the
       project. This supports various reporting structures such as a
       Work Breakdown Structure or Organizational Breakdown Structure
       that relate to the project or specific tasks. The reporting
       structure can be up to six levels deep to accommodate very
       large, complex projects. 
       
       Notations about a work team, named responsible person, and
       product details related to an activity can also be conveyed.

2.     REFERENCES

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

3.     TERMS AND DEFINITIONS

3.1    Standard terms and definitions

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

3.2    Message terms and definitions

       The terms "planning" and "scheduling" have different meanings.
       A project plan is a formal, approved document used to guide
       both project execution and project control. The primary uses of
       the project plan are to document planning assumptions and
       decisions, facilitate communication, and to document the
       approved scope, cost, and schedule baselines; these baselines
       serve as the foundation to measure progress and track changes. 
       
       A project schedule is an essential part of any project plan. A
       schedule provides the details about the activities that must be
       done, when they must be done, who is doing the work, and work
       progress measurement criteria. 
       
       The terms "task" and "activity" are used interchangeably to
       describe the work unit that must be completed to reach the end
       objective of the project.

4.     MESSAGE DEFINITION

4.1    Segment clarification

       This section should be read in conjunction with the segment
       table which indicates mandatory, conditional and repeating
       requirements.
       
       The header section for this message includes project unique
       identifying details, general project information, details about
       the parties exchanging data, information about computing
       environments, applicable index structure definitions, and the
       resource availability segment group.
       
       The detail section for this message includes the calendar
       information segment group and the activity or task segment
       group. Within the activity or task segment group a subordinate
       segment group is included to provide related information about
       an activity or task such as assigned resources, milestones, or
       constraints. 
       
       The summary section provides an optional control total segment
       for checking purposes.

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 Project tasks planning message is
       PROTAP.

       Note: Project tasks planning messages conforming to this
       document must contain the following data in segment UNH,
       composite S009:

       Data element  0065 PROTAP
                     0052 D
                     0054 01C
                     0051 UN

0020   BGM, Beginning of message
       A segment to identify a single planning or scheduling reporting
       document, its unique identifier, and specific message function.

0030 X GIS, General indicator
       A segment to identify the report detail type such as network
       logic, barchart, milestone, line of balance, or task list type
       of information.

0040   DTM, Date/time/period
       A segment to identify the message preparation, effective, and
       project baseline processing date information.


0050   Segment group 1:  RFF-IMD-BII-SG2
       A group of segments to provide information about the project
       and identify unique reference numbers for the message, to
       provide descriptions, to identify structured index numbers, and
       to note cross reference links with other projects.

0060      RFF, Reference
          A segment to identify references related to the plan or
          schedule such as a project, program, contract, contract
          addendum, Request for Quote, or Request for Proposal number.

0070      IMD, Item description
          A segment to provide a description such as the name of the
          program for any reference number or program.

0080      BII, Structure identification
          A segment to provide a structured index number for any
          reference number, project, plan, or schedule.


0090      Segment group 2:  GIR-REL
          A group of segments to provide related project, plan, or
          schedule numbers and relationship type such as a parent,
          child, or peer.

0100         GIR, Related identification numbers
             A segment to identify related or linked project, plan, or
             schedule identity numbers.

0110         REL, Relationship
             A segment to identify the type of relationship such as a
             parent, child, or peer (internal or external to the
             project).


0120   Segment group 3:  PNA-ADR-BII-SG4-SG5
       A group of segments to identify the parties relevant to the
       entire message with related contact and communication
       information, provide any applicable structured index number,
       and identify the type of data processing environment in use at
       the sender or receiver site.

0130      PNA, Party identification
          A segment to provide message sender and receiver
          information.

0140      ADR, Address
          A segment to provide address information for each named
          party.

0150      BII, Structure identification
          A segment to provide a structured index number associated
          with each named party.


0160      Segment group 4:  CTA-COM
          A group of segments to identify contact and communication
          numbers for each named party.

0170         CTA, Contact information
             A segment to provide a contact person's name for each
             named party.

0180         COM, Communication contact
             A segment to identify the phone number, fax number, e-
             mail, or other communication number for the contact
             party.


0190      Segment group 5:  CED-DTM
          A group of segments to provide information about the data
          processing environment used by each named party.

0200         CED, Computer environment details
             A segment to describe the data processing environment
             such as the software application name, version and
             release.

0210         DTM, Date/time/period
             A segment to provide the effective, processing, or other
             date stamp for the named software application.


0220   Segment group 6:  EFI-CED-DTM
       A group of segments to provide information about other
       documents that relate to the entire message such as cost, other
       planning or scheduling, technical, text, or graphical files
       that provide additional project reference or management control
       information.

0230      EFI, External file link identification
          A segment to identify a related file and provide details
          such as the file name, file format, version, and data
          format.

0240      CED, Computer environment details
          A segment to describe the data processing environment used
          to create the named file such as the name of the software
          application, version and release.

0250      DTM, Date/time/period
          A segment to provide the created, effective, processing, or
          other date stamp for the named file.


0260   Segment group 7:  IND-BII-IMD-RCS
       A group of segments to identify index structures and contents
       of indexing systems used for the plan or schedule.

0270      IND, Index details
          A segment to identify what the index applies to, such as the
          entire project or part of a project. Used to indicate
          whether IND and related segments describes the index
          structure or describes the index contents. When used to
          describe a structure, the segment is also used to indicate
          the structure hierarchical level.

0280      BII, Structure identification
          A segment to identify a structured index number definition
          or contents.

0290      IMD, Item description
          A segment to provide a description for the structured index
          number definition or contents.

0300      RCS, Requirements and conditions
          A segment to identify an action (add, change, or delete) for
          the index data.


0310   Segment group 8:  LIN-BII-RFF-IMD-DTM-SG9-SG10-SG11-SG12-SG13
       A group of segments to identify company-wide resources that are
       available to complete work on any given project. These
       resources can be assigned specific working calendars to
       indicate the days or times they are available to do work.

0320      LIN, Line item
          A segment to identify the resource and related action code
          (add, change, or delete).

0330      BII, Structure identification
          A segment to identify any structured index numbers for the
          resources that are related to the project such as billing or
          trade skill categories.

0340      RFF, Reference
          A segment to provide reference numbers for the resource such
          as a working calendar number, charge number or organization
          code.

0350      IMD, Item description
          A segment to provide a description of the resource or type
          of resource such as labor or material in clear or coded
          form.

0360      DTM, Date/time/period
          A segment to provide start and end dates related to the
          resource.


0370      Segment group 9:  QTY-DTM
          A group of segments to provide information about the
          quantity or number of resources available, a unit of measure
          for the resource such as hours, and related dates.

0380         QTY, Quantity
             A segment to identify the quantity of available resources
             and associated unit of measure such as hours or days the
             resource is available.

0390         DTM, Date/time/period
             A segment to identify the effective date, or start and
             end dates for the resource quantity.


0400      Segment group 10: PRI-DTM
          A group of segments to provide a unit price of the resource
          and effective dates of the price.

0410         PRI, Price details
             A segment to identify the resource unit price.

0420         DTM, Date/time/period
             A segment to identify the effective date, or start and
             end dates for the resource unit price.


0430      Segment group 11: PCD-DTM
          A group of segments to provide availability or efficiency
          factors for a given resource with any related dates. This
          segment group can also be used to provide an escalation or
          inflation percentage that may apply for the resource along
          with any associated specific start and end dates.

0440         PCD, Percentage details
             A segment to identify the percentage of availability or
             efficiency factor for the resource; also used to identify
             any escalation or inflation percentages.

0450         DTM, Date/time/period
             A segment to identify the effective date, or start and
             end dates for the resource availability, efficiency, or
             escalation percentage.


0460      Segment group 12: RTE-DTM
          A group of segments to provide a rate per unit such as a
          rate per hour for the resource and related dates.

0470         RTE, Rate details
             A segment to provide the rate per unit such as a rate per
             hour for the resource.

0480         DTM, Date/time/period
             A segment to identify the effective date, or start and
             end dates for the resource rate per unit.


0490      Segment group 13: MOA-DTM
          A group of segments to provide any monetary amounts
          associated with the resource such as budgeted, planned, or
          estimated costs and related dates.

0500         MOA, Monetary amount
             A segment to identify a monetary amount for the resource.

0510         DTM, Date/time/period
             A segment to identify the effective date, or start and
             end dates for the resource monetary amount.

4.1.2  Detail section

       Information to be provided in the Detail section:

0520   UNS, Section control
       A mandatory service segment placed before the first user
       segment in the detail section to avoid segment collision.


0530   Segment group 14: RFF-SG15
       A group of segments to provide information about the working
       calendars used for the tasks and resources assigned to a task.

0540      RFF, Reference
          A segment to provide the reference used to identify a given
          calendar.


0550      Segment group 15: SCC-QTY-DTM
          A group of segments to describe a given calendar. Provides
          information such as specific working patterns, quantity of
          working time units per day or working shifts per day, and
          specific date details such as non-working or holiday dates.

0560         SCC, Scheduling conditions
             A segment to provide details about a calendar work period
             pattern such as Monday through Friday.

0570         QTY, Quantity
             A segment to identify the quantity of working time units
             per day, quantity of working shifts per day, or quantity
             of working time units per shift for a given calendar.

0580         DTM, Date/time/period
             A segment to provide precise date details about a given
             calendar such as specific non-working or holiday dates.


0590   Segment group 16: LIN-STS-BII-RFF-IMD-PNA-CCI-DTM-FTX-SG17-
                         SG18-SG19-SG20-SG21
       A group of segments to describe the tasks or milestones that
       must be done to complete a project. Segments in the group
       provide structured index numbers or reference numbers,
       descriptions, named responsible person, named work team,
       information about the product or service being performed, work
       status, dates, durations, other text details, quantity with
       optional dates, percents with optional dates, and monetary
       amounts with optional dates for the task or milestone.
       
       The subordinate segment group GIR-REL-RCS-BII-RFF-DTM-SG22-
       SG23-SG24-SG25 provides related information for milestones
       assigned to a main activity or task, interface activities,
       constraint activities, or resources assigned to a task.

0600      LIN, Line item
          A segment to identify the task, indicate if it is an
          activity or milestone event, provide an action code (add,
          change, delete), and provide a schedule level reference.

0610      STS, Status
          A segment to provide a work status indicator (work has begun
          or work has been completed) for the task.

0620      BII, Structure identification
          A segment to identify any structured index numbers such as a
          bill of materials or work breakdown structure for the task.

0630      RFF, Reference
          A segment to provide reference numbers associated with the
          line item (task) such as charge numbers, cost accounts,
          statement of work numbers, and calendar or work shift
          references.

0640      IMD, Item description
          A segment to provide a description of the task.

0650      PNA, Party identification
          A segment to provide the party name of a work team for a
          given line item (task).

0660      CCI, Characteristic/class id
          A segment to provide information about a product or assembly
          associated with a given line item (task).

0670      DTM, Date/time/period
          A segment to provide planned start and finish dates, target
          dates, actual start and finish dates, estimate start and
          finish dates, and other related dates for the line item
          (task).

0680      FTX, Free text
          A segment to provide additional text for the line item
          (task). Can be used to provide additional details about the
          task, events surrounding the task such as an explanation for
          a behind schedule over cost situation, or further
          explanation about data associated with the task.


0690      Segment group 17: CTA-COM
          A group of segments to provide a responsible person's name
          and communication numbers for the line item (task).

0700         CTA, Contact information
             A segment to provide a responsible person's name for the
             line item (task).

0710         COM, Communication contact
             A segment to identify the phone number, fax number, e-
             mail, or other communication number of the responsible
             person for the line item (task).


0720      Segment group 18: QTY-DTM
          A group of segments to provide quantities and related unit
          of measure associated with a line item with related dates.
          May be used to convey planned, current, or progress
          durations when expressed as a quantity of units of time or a
          total quantity such as planned or budgeted hours for the
          task. Progress can also be conveyed as a percentage (segment
          group PCD-DTM) or as dates (independent DTM segment). All
          three methods can be used independently to exchange progress
          data; typically one of these three methods is preferred and
          agreed upon between trading parties.

0730         QTY, Quantity
             A segment to provide the unit of measure (such as hours)
             and quantities (such as budget, actual, or earned)
             associated with a line item (task). Also used to provide
             the duration of the task when expressed as a quantity of
             time units such as 10 working days; lead time duration
             such as a lead of 5 working days is required before the
             next task can start; and progress information such as a
             remaining duration of 5 working days.

0740         DTM, Date/time/period
             A segment to provide a single pair of start and end dates
             or a series of start and end dates (for example, to
             describe monthly allocations) associated with hour
             quantities (budget, actual, earned value) for the task.


0750      Segment group 19: PCD-DTM
          A group of segments to provide progress details about a line
          item and any related dates when progress is expressed as a
          percentage. Progress can also be conveyed as a duration
          quantity (segment group QTY-DTM) or as dates (independent
          DTM segment). All three methods can be used independently to
          exchange progress data; typically one of these three methods
          is preferred and agreed upon between trading parties.

0760         PCD, Percentage details
             A segment to provide the percent complete for the line
             item (task).

0770         DTM, Date/time/period
             A segment to provide effective, or start and end dates
             for the percent complete for the task.


0780      Segment group 20: MOA-DTM
          A group of segments to provide monetary amounts associated
          with a line item and any related dates.

0790         MOA, Monetary amount
             A segment to provide monetary amounts (such as budget,
             actual, or earned value costs) for the line item (task).

0800         DTM, Date/time/period
             A segment to provide a single pair of start and end dates
             or a series of start and end dates (for example, to
             describe costs broken down by month) monetary amounts for
             the task.


0810      Segment group 21: GIR-REL-RCS-BII-RFF-IMD-DTM-SG22-SG23-
                            SG24-SG25
          A group of segments to identify a related interface
          activity, constraint activity, assigned resources, or
          milestones events (when the line item is an activity)
          assigned to the line item (task) along with related
          structured index or reference numbers, descriptions, work
          status, dates, and any associated quantity, percent,
          monetary amounts, and rates.

0820         GIR, Related identification numbers
             A segment to identify a related constraint activity,
             interface activity, assigned resource, or milestone event
             (when the line item is an activity). For constraint
             activities, also used to indicate if the cited constraint
             activity is a predecessor or successor. For milestone
             events associated with a task, also used to provide a
             work status indicator (work has begun, work has been
             completed, or the milestone event has been revised).

0830         REL, Relationship
             A segment to identify the type of relationship. Used for
             constraint type of activities to describe finish to
             start, start to start, start to finish, and finish to
             finish types of relationships.

0840         RCS, Requirements and conditions
             A segment to identify an action (add, change, or delete)
             for the interface activity, constraint activity, assigned
             resource, or milestone event.

0850         BII, Structure identification
             A segment to identify any structured index numbers such
             an organization breakdown structure, or trade skill for
             an assigned resource.

0860         RFF, Reference
             A segment to provide reference numbers associated with
             the interface activity, constraint activity, assigned
             resource, or milestone event such as a calendar or shift,
             department, work package, charge number, or work order
             number.

0870         IMD, Item description
             A segment to provide a description of the interface
             activity, constraint activity, assigned resource, or
             milestone event. When an assigned resource, can also use
             this segment to indicate the type of resource in coded
             form (such as a consumable, recurring, or non-recurring
             resource).

0880         DTM, Date/time/period
             A segment to provide start and finish dates, actual start
             and finish dates, scheduled start and finish dates,
             planned or revised dates for assigned resources or
             milestones.


0890         Segment group 22: QTY-DTM
             A group of segments to provide quantity information for
             assigned resources or milestones events and related
             dates. Also used to provide the duration of lead or lag
             time for an interface activity or constraint activity
             when the duration is expressed as a quantity of time
             units such as a lead of 5 working days or a lag or 7
             working days.

0900            QTY, Quantity
                A segment to provide quantity information about the
                interface activity, constraint activity, assigned
                resource, or milestone event. For activities, used to
                provide the duration of lead or lag time when
                expressed as quantities of time units. For assigned
                resources, can be used to indicate the number of
                resources available for the task (level per calendar
                unit or total for the duration of the task). For
                assigned resources and milestone events, can be used
                to provide associated budget, actual, or earned value
                hour quantities.

0910            DTM, Date/time/period
                A segment to provide an effective date, a pair of
                start and end dates, or a series of start and end
                dates associated with an interface activity,
                constraint activity, assigned resource, or milestone
                quantity.


0920         Segment group 23: PCD-DTM
             A group of segments to provide an earned value percentage
             for milestone events or to provide availability or
             efficiency factors for assigned resources and any related
             dates.

0930            PCD, Percentage details
                A segment to provide availability or efficiency
                factors for an assigned resource or to provide an
                earned value percentage for a given milestone (used to
                calculate the amount of value earned when a milestone
                is complete).

0940            DTM, Date/time/period
                A segment to provide an effective date, or start and
                end dates associated with the availability,
                efficiency, or earned value percentage.


0950         Segment group 24: MOA-DTM
             A group of segments to provide monetary amounts for
             assigned resources and milestone events and any related
             dates.

0960            MOA, Monetary amount
                A segment to provide monetary amounts (such as budget,
                actual, or earned value) for the assigned resource or
                milestone event.

0970            DTM, Date/time/period
                A segment to provide an effective date, a pair of
                start and finish dates, or a series of start and
                finish dates associated with the budget, actual, or
                earned value monetary amount for the assigned resource
                or milestone event.


0980         Segment group 25: RTE-DTM
             A group of segments to provide rate information for an
             assigned resource and any related dates.

0990            RTE, Rate details
                A segment to identify a rate for the assigned
                resource.

1000            DTM, Date/time/period
                A segment to provide the effective date, or start and
                end dates for the assigned resource rate.

4.1.3  Summary section

       Information to be provided in the Summary section:

1010   CNT, Control total
       A segment to provide control totals for the message such as the
       total number of activities, milestones, resources, or
       constraints.

1020   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.

4.2    Segment index (alphabetical sequence by tag)

          ADR Address
          BGM Beginning of message
          BII Structure identification
          CCI Characteristic/class id
          CED Computer environment details
          CNT Control total
          COM Communication contact
          CTA Contact information
          DTM Date/time/period
          EFI External file link identification
          FTX Free text
          GIR Related identification numbers
       X  GIS General indicator
          IMD Item description
          IND Index details
          LIN Line item
          MOA Monetary amount
          PCD Percentage details
          PNA Party identification
          PRI Price details
          QTY Quantity
          RCS Requirements and conditions
          REL Relationship
          RFF Reference
          RTE Rate details
          SCC Scheduling conditions
          STS Status
          UNH Message header
          UNS Section control
          UNT Message trailer

4.3 Message structure 4.3.1 Segment table Pos Tag Name S R HEADER SECTION 0010 UNH Message header M 1 0020 BGM Beginning of message M 1 0030 X GIS General indicator M 1 0040 DTM Date/time/period M 99 0050 * ----- Segment group 1 ------------------ C 99----------+ 0060 RFF Reference M 1 | 0070 IMD Item description C 9 | 0080 BII Structure identification C 99 | | 0090 ----- Segment group 2 ------------------ C 99---------+| 0100 GIR Related identification numbers M 1 || 0110 REL Relationship C 1----------++ 0120 * ----- Segment group 3 ------------------ C 99----------+ 0130 PNA Party identification M 1 | 0140 ADR Address C 1 | 0150 BII Structure identification C 1 | | 0160 ----- Segment group 4 ------------------ C 9----------+| 0170 CTA Contact information M 1 || 0180 COM Communication contact C 9----------+| | 0190 ----- Segment group 5 ------------------ C 9----------+| 0200 CED Computer environment details M 1 || 0210 DTM Date/time/period C 9----------++ 0220 ----- Segment group 6 ------------------ C 99----------+ 0230 EFI External file link identification M 1 | 0240 CED Computer environment details C 1 | 0250 DTM Date/time/period C 1-----------+ 0260 ----- Segment group 7 ------------------ C 999---------+ 0270 IND Index details M 1 | 0280 BII Structure identification C 1 | 0290 IMD Item description C 1 | 0300 RCS Requirements and conditions C 1-----------+ 0310 ----- Segment group 8 ------------------ C 9999--------+ 0320 LIN Line item M 1 | 0330 BII Structure identification C 9 | 0340 RFF Reference C 9 | 0350 IMD Item description C 9 | 0360 DTM Date/time/period C 99 | | 0370 ----- Segment group 9 ------------------ C 99---------+| 0380 QTY Quantity M 1 || 0390 DTM Date/time/period C 99---------+| | 0400 ----- Segment group 10 ------------------ C 99---------+| 0410 PRI Price details M 1 || 0420 DTM Date/time/period C 99---------+| | 0430 ----- Segment group 11 ------------------ C 99---------+| 0440 PCD Percentage details M 1 || 0450 DTM Date/time/period C 99---------+| | 0460 ----- Segment group 12 ------------------ C 99---------+| 0470 RTE Rate details M 1 || 0480 DTM Date/time/period C 99---------+| | 0490 ----- Segment group 13 ------------------ C 99---------+| 0500 MOA Monetary amount M 1 || 0510 DTM Date/time/period C 99---------++ DETAIL SECTION 0520 UNS Section control M 1 0530 ----- Segment group 14 ------------------ C 99----------+ 0540 RFF Reference M 1 | | 0550 ----- Segment group 15 ------------------ C 999--------+| 0560 SCC Scheduling conditions M 1 || 0570 QTY Quantity C 99 || 0580 DTM Date/time/period C 999--------++ 0590 ----- Segment group 16 ------------------ C 9999--------+ 0600 LIN Line item M 1 | 0610 STS Status C 1 | 0620 BII Structure identification C 9 | 0630 RFF Reference C 9 | 0640 IMD Item description C 9 | 0650 PNA Party identification C 9 | 0660 CCI Characteristic/class id C 9 | 0670 DTM Date/time/period C 99 | 0680 FTX Free text C 99 | | 0690 ----- Segment group 17 ------------------ C 9----------+| 0700 CTA Contact information M 1 || 0710 COM Communication contact C 9----------+| | 0720 ----- Segment group 18 ------------------ C 99---------+| 0730 QTY Quantity M 1 || 0740 DTM Date/time/period C 99---------+| | 0750 ----- Segment group 19 ------------------ C 99---------+| 0760 PCD Percentage details M 1 || 0770 DTM Date/time/period C 99---------+| | 0780 ----- Segment group 20 ------------------ C 99---------+| 0790 MOA Monetary amount M 1 || 0800 DTM Date/time/period C 99---------+| | 0810 ----- Segment group 21 ------------------ C 9999-------+| 0820 GIR Related identification numbers M 1 || 0830 REL Relationship C 1 || 0840 RCS Requirements and conditions C 1 || 0850 BII Structure identification C 9 || 0860 RFF Reference C 9 || 0870 IMD Item description C 9 || 0880 DTM Date/time/period C 99 || || 0890 ----- Segment group 22 ------------------ C 99--------+|| 0900 QTY Quantity M 1 ||| 0910 DTM Date/time/period C 99--------+|| || 0920 ----- Segment group 23 ------------------ C 99--------+|| 0930 PCD Percentage details M 1 ||| 0940 DTM Date/time/period C 99--------+|| || 0950 ----- Segment group 24 ------------------ C 99--------+|| 0960 MOA Monetary amount M 1 ||| 0970 DTM Date/time/period C 99--------+|| || 0980 ----- Segment group 25 ------------------ C 99--------+|| 0990 RTE Rate details M 1 ||| 1000 DTM Date/time/period C 99--------+++ SUMMARY SECTION 1010 CNT Control total C 99 1020 UNT Message trailer M 1

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