View TRAK:EVp-03 Capability Phasing Viewpoint



EVp-03 - Capability Phasing Viewpoint




8th December 2017


The EVp-03 - Capability Phasing Viewpoint is part of the Enterprise Perspective and one of the 21 TRAK Architecture Viewpoints.

The EVp-03 Capability Phasing Viewpoint provides a way of describing the duration and phasing of capabilities.

It is the specification for the TRAK::EV-03 Capability Phasing architecture view.

Stakeholders Addressed

  • Builder of Enterprise
  • Developer of Enterprise
  • Maintainer of Enterprise
  • Owner of Enterprise
  • Acquirer of System
  • Disposer of System

Concerns Addressed

When is capability required?

Is this capability realised by any solutions?

Are there any capability gaps?


Full size:File:evp03StakeholderConcern.gif

Covered by TRAK IPR and licenses


Describes when Capabilities (planned or actual) are fielded over time. Capabilities are enduring since on their own they have no associated time.  An Enterprise has a start and finish date and therefore when a capability is tied to an enterprise this defines a period for which that capability is required. Similarly a system can realise a capability and when delivered or removed by a project activity there is a time period during which the required capability is realised.

The EVp-03 can be used to show the capabilities needed, the capabilities realised (via the solution and procurement perspectives) or contrast the two to determine Capability gaps. The EVp-03 also describes dependencies between capabilities.

Covered by TRAK IPR and licenses

The phasing of capability requires a duration - start and finish times to be defined. This is available from 2 sources:

Comparing the required capability phasing with the realised capability phasing provides a way to describe capability gaps.

Declared Tuples

Capabilities Needed

Capabilities Realised

Covered by TRAK IPR and licenses

Optional Tuples


If any of these optional metamodel elements are added then the appropriate TRAK Master Architecture View must be provided.

Covered by TRAK IPR and licenses


An EV-03 view shall contain:

[capabilities needed - phasing]

  • at least one Enterprise (the subject of the view)
  • every Enterprise must have at least one Capability (using Enterprise requires Capability)
  • the Enterprise must have both a start and a finish date. If it doesn’t it is assumed to be enduring (exists at all dates)
  • the time period during which a Capability is required must be visible (as the point is to show change / dependency with time).

[capabilities realised]

In addition if the capabilities realised are to be shown:

  • at least one System
  • every System must realise at least one of the Capabilities from the [capabilities needed] above (using System realises Capability)
  • every System must be associated with 2 Project Activities (one to introduce the System into service, the other to remove it from service) (using Project Activity delivers System, Project Activity removes System)
  • every Project Activity must have both a start and a finish date (attribute of Project Activity - see TRAK Metamodel document).

Covered by TRAK IPR and licenses

The properties/attributes for elements are defined within the TRAK Metamodel document.


  • table or matrix ([capabilities needed] Capability vs time taken from start and finish dates for each Enterprise; i.e. Capability vs Enterprise [capabilities realised] Capability vs time taken from start and finish dates for each Project Activity that delivers/removes the Capability - i.e. Capability vs System; or contrast the two). The important feature is to be able to see how capability changes with time.
  • block diagram (connected blocks to represent Enterprise, Capability, Project Activity and System)

table form:

  EV-03 Table or Matrix Form  
CapabilityRequired by EnterpriseStart DateFinish DateDepends on Capability

Capabilities needed: - hierarchy (enduring / no time specified):




Full size:File:EVp-03 examplePresentation blocksGap.gif

Covered by TRAK IPR and licenses


Views Needed to Construct

Consistency Rules

Covered by TRAK IPR and licenses

Further rules are applied through the TRAK Bye Laws

Configuration History

The TRAK Viewpoints project on Sourceforge ( maintains a version-controlled repository. The change record is at


The time period for the capabilities needed is determined using the start and finish dates for the Enterprise that requires these capabilities.

The time period during which a capability is realised is marked using start and finish date(s) of the Project Activity(ies) which delivers the System(s) that realise the particular capability. If more than one system realises the capability then the period for which the capability is realised is determined by the earliest start date and latest finish date for the project activities involved.

Other Frameworks


There is no equivalent in DNDAF to the TRAK Enterprise Perspective - see Architecture Framework Comparison.


Category:Framework -> Viewpoint
Category:Framework -> Specification


  • Strategic

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