TRAK Architecture Viewpoints

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trakviewpoints project

• Introduction
• What is an Architecture Viewpoint?
• Architecture Viewpoints & Views
  • Architecture Viewpoint Concerns
  • Enterprise Perspective
  • Concept Perspective
  • Procurement Perspective
  • Solution Perspective
  • Management Perspective
• Why Use Triples?
• Modelling TRAK Viewpoints
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PrVp-02 Procurement Timeline

This page reproduces part of the PrVp-02 Procurement Timeline architecture viewpoint definition from the specification - TRAK00001. TRAK. Architecture Framework. Viewpoints. The page content is therefore subject to the same GNU Free Documentation License terms and conditions - see https://www.gnu.org/licenses/fdl-1.3.html

Most of the content is produced from a model of TRAK produced using a different set of architecture viewpoints!

Version

The TRAK PrVp-02 Procurement Timeline architecture viewpoint is one of 24 architecture viewpoints defined in TRAK00001. TRAK. Architecture Framework. Viewpoints - current release is dated 2024_07_10.

Summary

The TRAK PrVp-02 Procurement Timeline architecture viewpoint defines the requirements for the TRAK PrV-02 Procurement Timeline architecture view. This involves allowed content and minimum acceptable content ('well-formedness' criteria). The TRAK00001. TRAK. Architecture Framework. Viewpoints specification also defines consistency rules that apply to a set of architecture views (an Architecture Description).

The TRAK PrVp-02 Procurement Timeline architecture viewpoint content is summarised under the following sections:

• stakeholder concerns
• description
• allowed content
• well-formedness criteria
• presentation methods
• comments

The TRAK Architecture Viewpoints specification provides are complete definition not only of the PrVp-02 Procurement Timeline architecture viewpoint but considerations for the architecture description formed from a set of architecture views.

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Description

Describes the dependencies between projects as a result of the introduction or removal of systems.

Allowed Content

TRAK architecture view content is defined in terms of triples - Node - connector - Node e.g. 'Project Activity marked by Milestone' that form short statements about the thing(s) being described.

'Project Activity marked by Milestone' is a Statement or Assertion in a PrV-02 Architecture View

The rationale for this is explained separately.

Subject Statements (Triples)

These are statements (triples) that describe the subject of the PrV-02 Procurement Timeline architecture view. Specifically these statements address the concerns for this PrVp-02 Procurement Timeline architecture viewpoint. These form the basis for the well-formedness section of the PrVp-02 Procurement Timeline architecture viewpoint.

There are 8 possible subject statements in total which include 4 metamodel elements ( Milestone , Project , Project Activity and System ).

Return to the top of the Procurement Timeline page.

Optional Statements (Triples)

These optional statements (triples) for the PrV-02 Procurement Timeline architecture view provide useful context with respect to a subject or universally allowed statements involving the subject or object (start or finish) elements in the Subject Statements (triples).

Universal statements may be added to any TRAK architecture view and describe typical concepts such as compliance or traceability:

• ... traces to Argument, Contract, Requirement, Document or Standard
• ... satisfies Contract, Requirement, Document or Standard
• Concern or Claim about ...
• Contract, Requirement, Document or Standard governs ...

'Project Activity satisfies Standard' - an optional statement or assertion for the PrV-02 Architecture View

These statements address the concerns of their respective architecture viewpoint and will have been created first on these other architecture views.

There are 53 possible statements which may be used to augment the PrV-02 Procurement Timeline architecture view, split into 6 groups:

• Context - Project Structure
• Universal - Applicable Requirements
• Universal - Assurance
• Universal - Concern Identified
• Universal - Requirement Compliance
• Universal - Traceability or Reference

Return to the top of the Procurement Timeline page.

Well-Formedness Criteria

Well-formedness criteria define the minimum acceptable view content based on the subject statements (triples). These criteria are not yet represented within the model of TRAK. Please refer to the PrVp-02 Procurement Timeline definition within the TRAK00001. TRAK. Architecture Framework. Viewpoints specification.

Presentation Methods

The PrV-02 Procurement Timeline architecture view may use any of following means to the statements (triples):

• Gantt chart
• Block diagram (Project, Project Activity, Milestone, System = block, TRAK relationship = line with direction indicator)

Note that a textual presentation is acceptable for any TRAK architecture view.

Comments

The PrV-02 Procurement Timeline architecture view is the master source (origin) on which you first create the following elements or statements:

• Milestone
• Project Activity

Attributes/properties for Project Activity e.g. start and finish dates are specified in the TRAK Metamodel document.

Neighbouring Architecture Views

The PrV-02 Procurement Timeline architecture view content may overlap that of the following neighbouring architecture views:

• EV-03 Capability Phasing
• MV-01 Architecture Description Dictionary
• MV-02 Architecture Description Design Record
• MV-03 Requirements and Standards
• MV-04 Assurance
• PrV-01 Procurement Structure
• PrV-03 Procurement Responsibility
• SV-01 Solution Structure

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