TRAK Architecture Framework MetamodelOntology Description - Node Elements
Introduction
This page presents definitions of TRAK metamodel elements taken from the TRAK00002. TRAK Metamodel specification. The master source definition for any element is the TRAK Metamodel specification - this page is provided for information only. It presents some of the information that is contained in the underlying ontology description, again based on the TRAK metamodel.
The ontology description is an approximation of the TRAK metamodel owing to the limitations of the OWL / RDF(S) ontology description languages - for example by describing only elements not the triples formed from them.
An ontology is not a metamodel - the TRAK metamodel contains an ontology. It also contains a taxonomy. The TRAK metamodel is also not a taxonomy. The TRAK metamodel is defined by triples which are not an ontology nor a taxonomy. More details are provided separately.
- Ontology description: https://purl.org/trak/elements/
Metadata
The elements that form part of the metamodel for the open source TRAK architecture framework or which are used to describe or define it. The source document for these is 'TRAK00002. TRAK. Architecture Framework. Metamodel'.The Architecture Description Elements and relationships are used to define Architecture Description Tuples which form the basis of the specification of each of the TRAK Viewpoints and the consistency/correspondence rules across a TRAK-conforming Architecture Description.Architecture Description Tuples form the content of each TRAK Architecture View. Abstract concepts/entities cannot appear in a TRAK Architecture View but are used to manage or define other elements or model/describe them (metamodelling).
- Specification: TRAK00002. TRAK. Architecture Framework. Metamodel.
- Release date: 2024-09-23
Characteristics
- Ontology Description Languages - RDFS, RDF, OWL, SKOS
- Size - c 4,200 lines - too large for W3C validator as single file ...
Limitations
The development of the ontology description of the TRAK metamodel and the presentation of some of this in these HTML pages is an ongoing activity and is not complete. There will also likely be limitations owing to the capabilities that ontology description languages provide (and lack).
Limitations - HTML Presentation
- Properties. No linkage of properties to Nodes, Connectors. No enumerations (not described in RDF/XML ontology - see below).
Limitations - RDF/XML Ontology Description
- Enumerated lists - allowed / default values missing
- Metamodel tuples. No definition of the individuals (each triple) that comprise the TRAK metamodel.
Copyright
The TRAK Metamodel contents presented are subject to the terms of the GGNU Free Documentation License (Version 1.3, November 2008). The general terms of this and FAQs can be seen at https://www.gnu.org/licenses/fdl-1.3.en.html. The specific terms are specified in the TRAK Metamodel specification (TRAK00002) itself.
Contents
Node Elements in the TRAK Metamodel
Architecture Description , Architecture Description Element , Architecture Description Tuple , Architecture Framework , Architecture Perspective , Architecture Product , Architecture Task , Architecture View , Architecture Viewpoint , Argument , Capability , Claim , Competence , Concept Activity , Concern , Contract , DCMI Artefact , Document , Enterprise , Enterprise Goal , Event , Evidence , Function , Human Resource , Interaction Element , Item , Item Exchange , Job , Metamodel , Metric , Milestone , Mitigation , Need , Node , Organisation , Physical , Port , Port Connection , Project , Project Activity , Protocol , Requirement , Resource , Resource Interaction , Risk , Role , Safety Monitored Element , Software , Standard , System , Threat , Vulnerability , Zone
Metamodel Node Elements
Architecture Description
Ontology URI: https://purl.org/trak/elements/#Architecture_Description
Definition: IEEE 1471: An architectural description is a model of the architecture; its purpose is to answer all identified stakeholder's questions about all identified architecture-related concerns for the system of interest; The collection of architecture products that describes a system of interest.
Tests For:
Tests Against:
Subclass of: DCMI Artefact, Architecture Description Element and Architecture Product
Comment: The purists will not like it (self-references / infinite recursion) but it provides a useful means for describing the scope/results for an architectural task using the MV-02 Architecture Design Record.
Related:
Date Created: 2010-02-15
Date Modified: 2015-09-05
Architecture Description Element
Ontology URI: https://purl.org/trak/elements/#Architecture_Description_Element
Definition: An individual architecture description object that is used to describe or represent an item of real-world architecture. An architecture description element can appear in an architecture description.
Tests For:
Tests Against:
Subclass of: --
Comment: The parent of all TRAK elements used in ADs. The intent of the attributes is to capture identification and ownership to allow bi-directional exchange of ADs between 2 organisations.
Related:
Date Created: 2010-02-15
Date Modified: 2015-09-05
Architecture Description Tuple
Ontology URI: https://purl.org/trak/elements/#Architecture_Description_Tuple
Definition: A named architecture description element connected by a named relationship to a named architecture description element. i.e. subject - predicate - object - the basis of a sentence.
Tests For:
Tests Against:
Subclass of: --
Comment: Smallest unit of architecture description in TRAK. Basis for natural language and machine understandable such as RDF. Element itself doesn't appear in TRAK views – only the Architecture Description Elements that form a tuple.
Related:
Date Created: 2010-02-15
Date Modified: 2011-01-18
Architecture Framework
Ontology URI: https://purl.org/trak/elements/#Architecture_Framework
Definition: ISO/IEC/IEEE 42010 'conventions, principles and practices for the description of architectures established within a specific do- main of application and/or community of stakeholders.'
Tests For:
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Subclass of: --
Comment: Not used in TRAK views.
Related:
Date Created: 2010-02-15
Date Modified: 2015-07-23
Architecture Perspective
Ontology URI: https://purl.org/trak/elements/#Architecture_Perspective
Definition: IEEE 1471 refers to an Architectural Perspective as 'Sharing of architectural models also facilitates an "aspect-oriented" style of architectural description' i.e. a grouping of related and overlapping architectural views.
Tests For:
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Subclass of: --
Comment: Not used in TRAK views.
Related:
Date Created: 2010-02-15
Date Modified: 2010-02-15
Architecture Product
Ontology URI: https://purl.org/trak/elements/#Architecture_Product
Definition: A work product / artefact with architectural modelling content.
Tests For:
Tests Against:
Subclass of: --
Comment: Abstract - Architecture Product is not used in any of the TRAK views and does not appear in any Architecture Description. It is part of the background definition of TRAK.
Related:
Date Created: 2010-02-15
Date Modified: 2015-07-23
Architecture Task
Ontology URI: https://purl.org/trak/elements/#Architecture_Task
Definition: A task which results in the delivery of one or more architecture products.
Tests For:
Tests Against:
Subclass of: Architecture Description Element
Comment: Used on the MV-02 to describe the task for which the AD is produced - and to plan / organise the use/development of the models.
Related:
Date Created: 2010-02-15
Date Modified: 2011-09-05
Architecture View
Ontology URI: https://purl.org/trak/elements/#Architecture_View
Definition: ISO/IEC/IEEE 42010: A representation of a whole system from the perspective of a related set of concerns.
Tests For:
Tests Against:
Subclass of: DCMI Artefact, Architecture Description Element and Architecture Product
Comment: Used in the MV-02 Architecture Design record.
Related:
Date Created: 2010-02-15
Date Modified: 2016-12-16
Architecture Viewpoint
Ontology URI: https://purl.org/trak/elements/#Architecture_Viewpoint
Definition: A viewpoint defines a set of conventions (notations, languages and model types) for constructing a certain kind of view.
Tests For:
Tests Against:
Subclass of: Architecture Product, DCMI Artefact and Architecture Description Element
Comment: Not used in TRAK views.
Related:
Date Created: 2010-02-15
Date Modified: 2020-04-10
Argument
Ontology URI: https://purl.org/trak/elements/#Argument
Definition: A connected series of statements or reasons intended to establish a position (and, hence, to refute the opposite); a process of reasoning; argumentation.
Tests For:
Tests Against:
Subclass of: Architecture Description Element
Comment:
Related:
Date Created: 2014-12-24
Date Modified: 2015-07-23
Capability
Ontology URI: https://purl.org/trak/elements/#Capability
Definition: The ability to undertake a particular kind of action or the extent of someone's or something's ability.
Tests For: makes sense when used with 'Enterprise requires ...' easy to re-use
Tests Against: includes technology includes a 'thing'
Subclass of: Architecture Description Element
Comment: keep short use active (doing) voice should be able to be re-used easily across ADs / models
Related:
Date Created: 2010-02-15
Date Modified: 2011-01-27
Claim
Ontology URI: https://purl.org/trak/elements/#Claim
Definition: That which is claimed. To claim - To assert and demand recognition of i.e. something which is asserted.
Tests For:
Tests Against:
Subclass of: Architecture Description Element
Comment:
Related:
Date Created: 2014-12-24
Date Modified: 2020-04-10
Competence
Ontology URI: https://purl.org/trak/elements/#Competence
Definition: The scope of knowledge or ability.
Tests For:
Tests Against:
Subclass of: Architecture Description Element
Comment: important for human factors or human resources analysis
Related:
Date Created: 2010-02-15
Date Modified: 2021-12-21
Concept Activity
Ontology URI: https://purl.org/trak/elements/#Concept_Activity
Definition: A high level logical activity or process which is independent of how the activity is carried out i.e. no 'how'.
Tests For: logical
Tests Against: contains solution or technology in phrase
Subclass of: Architecture Description Element
Comment: If Node is too like a real thing then Concept Activity is likely to be indistinguishable from a solution Function associated with a resource.
Related:
Date Created: 2010-02-15
Date Modified: 2011-01-27
Concern
Ontology URI: https://purl.org/trak/elements/#Concern
Definition: An interest in a subject held by one or more stakeholder Human Resource.
Tests For:
Tests Against:
Subclass of: Architecture Description Element
Comment: This is allied to ISO/IEC/IEEE 42010 where generic concerns are addressed through an Architecture Viewpoint (a specification for an Architecture View). Individual Architecture Views address specific concerns.
Related:
Date Created: 2010-02-15
Date Modified: 2021-12-21
Contract
Ontology URI: https://purl.org/trak/elements/#Contract
Definition: A written or spoken agreement. between at least 2 parties that is intended to be enforceable by law.
Tests For:
Tests Against:
Subclass of: DCMI Artefact and Architecture Description Element
Comment: Used in the MV-03 Requirements & Standards View.
Related:
Date Created: 2010-02-15
Date Modified: 2021-12-21
DCMI Artefact
Ontology URI: https://purl.org/trak/elements/#DCMI_Artefact
Definition: Abstract artefact
Tests For:
Tests Against:
Subclass of: --
Comment: Abstract. Used for inheritance of attributes. Not used in any TRAK architecture view.
Related:
Date Created: 2024-09-23
Date Modified: 2024-09-23
Document
Ontology URI: https://purl.org/trak/elements/#Document
Definition: A document artefact - a piece of written, printed, or electronic matter that provides information or evidence or that serves as an official record.
Tests For:
Tests Against:
Subclass of: Architecture Description Element and DCMI Artefact
Comment:
Related:
Date Created: 2010-02-15
Date Modified: 2016-12-05
Enterprise
Ontology URI: https://purl.org/trak/elements/#Enterprise
Definition: An organisation - often a collection - having common goals of "bottom line". Also represents a period or duration within the total life of the bigger Enterprise.
Tests For: abstract
Tests Against: concrete
Subclass of: Architecture Description Element
Comment:
Related:
Date Created: 2010-02-15
Date Modified: 2024-05-21
Enterprise Goal
Ontology URI: https://purl.org/trak/elements/#Enterprise_Goal
Definition: An objective or target for an Enterprise (phase). i.e. it has an associated period or notion of phasing and is likely to be different or change between Enterprise Phases.
Tests For:
Tests Against:
Subclass of: Architecture Description Element
Comment: A Vision (Statement) outlines what the organisation wants to be. It concentrates on the future. It is a source of inspiration. It provides clear decision- making criteria. [Wikipedia]. A Mission Statement tells you the fundamental purpose of the organisation. It concentrates on the present. In TRAK therefore if an Enterprise is defined as having both the start and finish dates as [Today] and an Enterprise Goal is attached this is the equivalent to a Mission Statement.
Related:
Date Created: 2010-02-15
Date Modified: 2015-07-23
Event
Ontology URI: https://purl.org/trak/elements/#Event
Definition: Anything that happens, or is contemplated as happening; an incident, occurrence.
Tests For:
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Subclass of: Architecture Description Element
Comment: An accident sequence is a sequence of events.
Related:
Date Created: 2015-12-12
Date Modified: 2020-04-10
Evidence
Ontology URI: https://purl.org/trak/elements/#Evidence
Definition: Testimony or facts tending to prove or disprove any conclusion or something serving as a proof.
Tests For:
Tests Against:
Subclass of: DCMI Artefact and Architecture Description Element
Comment: In TRAK evidence takes the form of a document artefact which can therefore include any type of media. Evidence identification captures identifies statement(s) that offer proof and define artefact as evidence.
Related:
Date Created: 2014-12-24
Date Modified: 2015-09-05
Function
Ontology URI: https://purl.org/trak/elements/#Function
Definition: An activity which is specified in context of the resource (human or machine) that performs it.
Tests For: associated with a technology
Tests Against:
Subclass of: Safety Monitored Element and Architecture Description Element
Comment: .
Related:
Date Created: 2010-02-15
Date Modified: 2024-05-21
Human Resource
Ontology URI: https://purl.org/trak/elements/#Human_Resource
Definition: Human organisational asset.
Tests For:
Tests Against:
Subclass of: Architecture Description Element and Resource
Comment: Abstract Parent class of Organisation, Role, Job. Not used in any TRAK view.
Related:
Date Created: 2010-02-15
Date Modified: 2011-09-30
Interaction Element
Ontology URI: https://purl.org/trak/elements/#Interaction_Element
Definition: A formalised representation of the thing that is exchanged between Resources.
Tests For:
Tests Against: expressed as tangible thing being passed e.g. real message, 'stuff '
Subclass of: Architecture Description Element
Comment:
Related:
Date Created: 2010-02-15
Date Modified: 2011-02-11
Item
Ontology URI: https://purl.org/trak/elements/#Item
Definition: A high level quantity or thing that can flow.
Tests For:
Tests Against:
Subclass of: Architecture Description Element
Comment: It is important to note that this isn't just information - it might be a materiel / resource flow, energy or data.
Related:
Date Created: 2010-02-15
Date Modified: 2011-02-11
Item Exchange
Ontology URI: https://purl.org/trak/elements/#Item_Exchange
Definition: A solution-agnostic/logical exchange of an Item (data, resource, energy) between two entities
Tests For:
Tests Against:
Subclass of: Architecture Description Element
Comment: The Item Exchange flows in the opposite direction to the direction of need. Labelled using 'from/to'
Related:
Date Created: 2010-02-15
Date Modified: 2015-07-23
Job
Ontology URI: https://purl.org/trak/elements/#Job
Definition: A position of employment - usually but not always paid.
Tests For: title on an organisation chart
Tests Against: sounds like a responsibility
Subclass of: Human Resource
Comment:
Related:
Date Created: 2010-02-15
Date Modified: 2021-12-21
Metamodel
Ontology URI: https://purl.org/trak/elements/#Metamodel
Definition: 'Metamodeling' is the construction of a collection of "concepts" (things, terms, etc.) within a certain domain. A model is an abstraction of phenomena in the real world; a metamodel is yet another abstraction, highlighting properties of the model itself. A model conforms to its metamodel in the way that a computer program conforms to the grammar of the programming language in which it is written.
Tests For:
Tests Against:
Subclass of: Architecture Product
Comment: Not used in TRAK views.
Related:
Date Created: 2010-02-15
Date Modified: 2010-10-17
Metric
Ontology URI: https://purl.org/trak/elements/#Metric
Definition: A measure.
Tests For:
Tests Against:
Subclass of: Architecture Description Element
Comment: Allows taxonomies of metrics to be prepared and metrics to be shared.
Related:
Date Created: 2010-02-15
Date Modified: 2021-12-21
Milestone
Ontology URI: https://purl.org/trak/elements/#Milestone
Definition: Event marking a significant change or stage in development.
Tests For:
Tests Against:
Subclass of: Architecture Description Element
Comment:
Related:
Date Created: 2010-02-15
Date Modified: 2021-12-21
Mitigation
Ontology URI: https://purl.org/trak/elements/#Mitigation
Definition: The action of reducing the severity, seriousness, or painfulness of something.
Tests For:
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Subclass of: Architecture Description Element
Comment:
Related:
Date Created: 2015-12-12
Date Modified: 2015-12-12
Need
Ontology URI: https://purl.org/trak/elements/#Need
Definition: A necessity or requirement for (something).
Tests For:
Tests Against: if routing matters it isn’t a Need
Subclass of: Architecture Description Element
Comment: labelled using 'has' ... Need ...'for' A Need may be defined using one or more Requirements as part of a normative document (Standard).
Related:
Date Created: 2010-02-15
Date Modified: 2021-12-22
Node
Ontology URI: https://purl.org/trak/elements/#Node
Definition: A node is a logical operational entity. It can represent anything from a command or signalling centre to a big system or organisational or co-ordinating body providing that no knowledge of how things are done is implied.
Tests For:
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Subclass of: Architecture Description Element
Comment:
Related:
Date Created: 2010-02-15
Date Modified: 2021-12-21
Organisation
Ontology URI: https://purl.org/trak/elements/#Organisation
Definition: An organised body of people, associated for a particular purpose.
Tests For: concrete well-defined structure wrt parts and membership
Tests Against: abstract
Subclass of: Human Resource
Comment:
Related:
Date Created: 2010-02-15
Date Modified: 2021-12-21
Physical
Ontology URI: https://purl.org/trak/elements/#Physical
Definition: A physical thing. Can represent an equipment (which can host Software), a building or civil item, train etc.
Tests For: bricks & mortar
Tests Against: contains an organisation
Subclass of: Resource
Comment: Note that there is a difference between a HQ - the building and a HQ as an Organisational Resource (which is housed in the building).
Related:
Date Created: 2010-02-15
Date Modified: 2021-12-21
Port
Ontology URI: https://purl.org/trak/elements/#Port
Definition: A socket or opening (logical or physical) provided by a thing.
Tests For:
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Subclass of: Architecture Description Element
Comment:
Related:
Date Created: 2010-02-15
Date Modified: 2021-12-22
Port Connection
Ontology URI: https://purl.org/trak/elements/#Port_Connection
Definition: Asserts that a connection exists between two ports.
Tests For:
Tests Against:
Subclass of: Architecture Description Element
Comment: labelled using 'from/to'
Related:
Date Created: 2010-02-15
Date Modified: 2014-12-20
Project
Ontology URI: https://purl.org/trak/elements/#Project
Definition: An individual or collaborative enterprise that is carefully planned and designed to achieve a particular aim.
Tests For: Can it be given to another organisation to manage/run? Concrete i.e. not Enterprise
Tests Against: integral part of a company i.e. Organisation. How it is resourced/staffed Organisation
Subclass of: Architecture Description Element
Comment:
Related:
Date Created: 2010-02-15
Date Modified: 2021-12-22
Project Activity
Ontology URI: https://purl.org/trak/elements/#Project_Activity
Definition: An activity undertaken within a project which results in something being delivered.
Tests For:
Tests Against:
Subclass of: Architecture Description Element
Comment: The use of Project Activity (with Project) in the architecture enables the architecture to represent snapshots or change in architecture with time. It enables a view to show what capability is delivered at a point in time (& compared with another, say, now).
Related:
Date Created: 2010-02-15
Date Modified: 2011-01-27
Protocol
Ontology URI: https://purl.org/trak/elements/#Protocol
Definition: A set of rules governing the exchange procedure between things.
Tests For:
Tests Against:
Subclass of: Architecture Description Element
Comment:
Related:
Date Created: 2010-02-15
Date Modified: 2021-12-22
Requirement
Ontology URI: https://purl.org/trak/elements/#Requirement
Definition: An atomic requirement or constraint - a statement of need.
Tests For: atomic
Tests Against: Takes form of a document - would then be either a Standard or Contract.
Subclass of: Architecture Description Element
Comment: It is NOT a requirements document. It is intended to represent a requirement - something that might be exported from a requirement management tool. It can be associated with any architecture element inside the boxed area.This provides a mechanism to associate requirements with model elements Desirable - Freedom e.g 'may' Desirable - Commitment e.g. 'will' Mandatory e.g.'shall'
Related:
Date Created: 2010-02-15
Date Modified: 2023-09-09
Resource
Ontology URI: https://purl.org/trak/elements/#Resource
Definition: Part of the solution - a generic thing that refers to human-related and machine-related entities.
Tests For:
Tests Against:
Subclass of: Safety Monitored Element and Architecture Description Element
Comment: Abstract. Parent class of System, Physical, Software, Human Resource. Not used in any TRAK view.
Related:
Date Created: 2010-02-15
Date Modified: 2016-07-02
Resource Interaction
Ontology URI: https://purl.org/trak/elements/#Resource_Interaction
Definition: A formalised representation of the thing exchanged between Resource.
Tests For: something flows or is exchanged not part of the specification of the environment
Tests Against: in realms of physics e.g. thermal flow effect of/on immediate environment e.g. EMC, vibration, climate
Subclass of: Architecture Description Element
Comment: Can be a flow of data, energy or resource (Physical, Human Resource, System, Software) labelled using 'from/to'
Related:
Date Created: 2010-02-15
Date Modified: 2024-05-21
Risk
Ontology URI: https://purl.org/trak/elements/#Risk
Definition: An uncertain event that has a harmful impact or consequence.
Tests For:
Tests Against: probability of occurrence = 100%
Subclass of: Event
Comment: When we refer to a 'risk' we usually mean a 'risky event'. If a Risk (event) is 100% certain to occur it is not a risk – it is an Event.
Related:
Date Created: 2015-12-12
Date Modified: 2012-12-12
Role
Ontology URI: https://purl.org/trak/elements/#Role
Definition: The duties or status assumed or part played by a person or organisation.
Tests For: many roles map to a single job
Tests Against:
Subclass of: Human Resource
Comment: If a single role occupies most of a job-holder’s time it may result in the job being redefined around the role.
Related:
Date Created: 2010-02-15
Date Modified: 2021-12-22
Safety Monitored Element
Ontology URI: https://purl.org/trak/elements/#Safety_Monitored_Element
Definition: Something that has possible safety-related attributes
Tests For:
Tests Against:
Subclass of: --
Comment: Enables Safety Integrity Level (SIL) to be captured if appropriate. Abstract. Applied to Resource and to Function. Not used in any TRAK view.
Related:
Date Created: 2010-10-20
Date Modified: 2017-01-28
Software
Ontology URI: https://purl.org/trak/elements/#Software
Definition: The programs and other operating information used by a computer.
Tests For:
Tests Against:
Subclass of: Resource
Comment:
Related:
Date Created: 2010-02-15
Date Modified: 2023-05-23
Standard
Ontology URI: https://purl.org/trak/elements/#Standard
Definition: A normative document. It is a formal document that establishes criteria, processes, practices or defines protocols. Note that although it is a form of Requirement it only applies through the application of a Requirement whether a contractual or technical.
Tests For: takes form of a document: normative law, requirement document, normative plan document
Tests Against:
Subclass of: DCMI Artefact and Architecture Description Element
Comment: Used in the MV-03 Standards View.
Related:
Date Created: 2010-02-15
Date Modified: 2015-09-05
System
Ontology URI: https://purl.org/trak/elements/#System
Definition: A composite structure exhibiting emergent behaviour.
Tests For: has feedback/control mechanism via its parts that keeps it stable/opposes perturbations
Tests Against: consists of Physical elements (with no behaviour). Sum of functions of parts in configuration i.e. no emergent behaviour or properties
Subclass of: Resource
Comment: Can consist of purely human elements. A system is stable and maintains itself this way - the constituent parts must therefore collectively provide the mechanism to keep the system stable. If an essential part of a system is removed it destroys that system (it might become a different system because the system boundary is then different). As ever “the whole is more than the sum of the parts”
Related:
Date Created: 2010-02-15
Date Modified: 2017-01-28
Threat
Ontology URI: https://purl.org/trak/elements/#Threat
Definition: Something that has the potential to cause harm; danger; peril.
Tests For:
Tests Against:
Subclass of: Architecture Description Element
Comment: Synonym for Hazard
Related:
Date Created: 2015-12-12
Date Modified: 2021-12-22
Vulnerability
Ontology URI: https://purl.org/trak/elements/#Vulnerability
Definition: A weakness or susceptibility.
Tests For:
Tests Against:
Subclass of: Architecture Description Element
Comment:
Related:
Date Created: 2015-12-12
Date Modified: 2015-12-12
Zone
Ontology URI: https://purl.org/trak/elements/#Zone
Definition: A definite region or area of the earth, or of any place or space, distinguished from adjacent regions.
Tests For:
Tests Against:
Subclass of: Architecture Description Element
Comment:
Related:
Date Created: 2021-12-22
Date Modified: 2021-12-22
The TRAK metamodel is subject to the terms of open source license: GNU Free Documentation License (Version 1.3, November 2008) at http://gnu.org/licenses/fdl-1.3.html.