RM-ODP Enterprise Language ISO | ITU-T 15414 | X.911

RM-ODP Enterprise LanguageRM-ODP Enterprise LanguageISO | ITU-T 15414 | X.911ISO | ITU-T 15414 | X.911

Sandy Tyndale-BiscoeSandy Tyndale-Biscoe(Convener ISO/JTC1/SC7/WG17)(Convener ISO/JTC1/SC7/WG17)

[email protected]@Open-IT.co.uk

ITU-T/SG17 27th Nov 2002

2ITU-T/SG17 27th Nov 2002

OutlineOutline

• RM-ODP ViewpointsRM-ODP Viewpoints– How the Enterprise Language fits into the overall How the Enterprise Language fits into the overall

ODP pictureODP picture

• Motivation for the Enterprise LanguageMotivation for the Enterprise Language• Enterprise Language ConceptsEnterprise Language Concepts• Current Status and Current Status and Work in ProgressWork in Progress


ODP ViewpointsODP Viewpoints


ODP ViewpointsODP ViewpointsComputationalComputational

EnterpriseEnterprise

TechnologyTechnology EngineeringEngineering

The purpose, scope and policies for the organisation that will own the information system

Functional decomposition of the system into objects suitable for distribution

Information handled by the system and constraints on the use and interpretation of that information

Infrastructure required to support distribution

System hardware & software elements

OpenSystem

InformationInformation

ITU-T/SG17 27th Nov 2002 5

ODP ViewpointsODP ViewpointsODP ViewpointsODP ViewpointsComputationalComputational

EnterpriseEnterprise


The purpose, scope and policies for the organisation that will own the information system

Functional decomposition of the system into objects suitable for distribution

Information handled by the system and constraints on the use and interpretation of that information

Infrastructure required to support distribution

System hardware & software elements

OpenSystem


THESE ARE N

OT LAYERS!

THESE ARE N

OT LAYERS!


5 Viewpoints on a WP package5 Viewpoints on a WP package

• TechnologyTechnology - - Package name, system requirementsPackage name, system requirements

• ComputationalComputational - - functionality as a set software componentsfunctionality as a set software components

• EngineeringEngineering - - inter-component and external communications, inter-component and external communications, display servicesdisplay services

• InformationInformation - - things it understands – text, graphic, multi-things it understands – text, graphic, multi-media objects, fonts etcmedia objects, fonts etc

• EnterpriseEnterprise - organisational rules for how the package fits into - organisational rules for how the package fits into the businessthe business


ODP ViewpointsODP Viewpoints

What the system is for

What the system is about

How it works

How to put it together

ComputationalComputationalEnterpriseEnterprise


OpenSystem



Viewpoints and the Real World - the Viewpoints and the Real World - the Enterprise Language is different!Enterprise Language is different!

Real world systems and software

Real world actors and thingsEnterprise

specificationModelled as

Isomorphisms

Technology specification

Modelled as

Information specification

Computational

specification

Engineering specification

Modelled as

Modelled as

Modelled as


An ODP based specification processAn ODP based specification process

Technology Technology SpecificationSpecification

Information Information SpecificationSpecification

Computational Computational SpecificationSpecification

Engineering Engineering specificationspecification

Enterprise Enterprise SpecificationSpecification


The Enterprise Language StandardThe Enterprise Language Standard((ISO | ITU-T 15414 | X.911) - ISO | ITU-T 15414 | X.911) -

MotivationMotivation

• An enterprise specification defines the purpose, An enterprise specification defines the purpose, scope and policies of an ODP system. (Part 3, scope and policies of an ODP system. (Part 3, Clause 5)Clause 5)

• Purpose of 15414 | X.911:Purpose of 15414 | X.911:– Refine and extend the enterprise language defined in ITU-T Refine and extend the enterprise language defined in ITU-T

Recommendation X.903 |ISO/IEC 10746-3 to enable full Recommendation X.903 |ISO/IEC 10746-3 to enable full enterprise viewpoint specification of an ODP system;enterprise viewpoint specification of an ODP system;

– Provide the terms and structuring rules to specify the Provide the terms and structuring rules to specify the purpose, scope and policies for an ODP system in a manner purpose, scope and policies for an ODP system in a manner that is meaningful for the stakeholders for that system, that is meaningful for the stakeholders for that system, including the owners, the users, the developers and the including the owners, the users, the developers and the maintainers.maintainers.


MotivationMotivation

• The RM-ODP Enterprise Language provides a The RM-ODP Enterprise Language provides a common modelling language (set of terms and common modelling language (set of terms and structuring rules for their use) so that stakeholders structuring rules for their use) so that stakeholders can discuss and agree about a system (or can discuss and agree about a system (or component):component):– how it fits into the business environment it supports,how it fits into the business environment it supports,– its roles and responsibilities,its roles and responsibilities,– associated human roles and responsibilities,associated human roles and responsibilities,– what damage it can do to the business when it fails.what damage it can do to the business when it fails.


The Standard is silent about …The Standard is silent about …

• Any form of development methodAny form of development method• Any form of modelling methodAny form of modelling method• Any form of notationAny form of notation

but it is consistent with commonly used but it is consistent with commonly used techniques such as UP and UMLtechniques such as UP and UML


Enterprise Language Concepts Enterprise Language Concepts

Community

sub-objective

1*

Objective

has1objective of

*

configuration of

member of

*

*

Enterprise Object

Community: A configuration of objects formed to meet an objective. The objective is expressed as a contract which specifies how the objective can be met.

Contract defines

1

defined in

*


Enterprise Language ConceptsEnterprise Language Concepts

Role ActionBehaviour1..*

of

*

fulfils

defined by

*

*defines

0..1 identified by1identifies

part of

collection of *

1

Community

sub-objective

1*

Objective

has1objective of

*

configuration of

member of

*

*

Enterprise Object

Contract defines

1

defined in

*

Role: Identifier for a behaviour, which may appear as a parameter in a template for a composite object, and which is associated with one of the component objects of the composite object.



Process Step

1 has

of *

to meet1

*

leads to 1..*

graph of part of

1..*


of

*

fulfils

defined by

*

*defines


part of

collection of *

1

Community

sub-objective

1*

Objective

has1objective of

*

configuration of

member of

*

*

Enterprise Object

Contract defines

1

defined in

*

Process: A collection of steps taking place in a prescribed manner and leading to an objective



Process Step

1 has

of *

to meet1

*

leads to 1..*

graph of part of

1..*


of

*

fulfils

defined by

*

*defines


part of

collection of *

1

Community

sub-objective

1*

Objective

has1objective of

*

configuration of

member of

*

*

Enterprise Object

Contract defines

1

defined in

*

The concepts Resource, Artefact and Actor represent the parts played by Enterprise Objects in the behaviour being described

Actor

Artefact

Resource

requires*

*

essential to

1..*

performedby

participates in1..*

1..*

concerns

referenced in*



The concept Community Object, is used to refine an EO and its behaviour at a greater level of detail

Process Step

1 has

of *

to meet1

*

leads to 1..*

graph of part of

1..*


of

*

fulfils

defined by

*

*defines


part of

collection of *

1

Community

sub-objective

1*

Objective

has1objective of

*

configuration of

member of

*

*

Enterprise Object

Contract defines

1

defined in

*

Actor

Artefact

Resource

requires*

*

essential to

1..*

performedby

participates in1..*

1..*

concerns

referenced in*

Community Object

represents 0..1

refines 1



Party: An enterprise object modelling a natural person or any other entity considered to have some of the rights, powers and duties of a natural person

Process Step

1 has

of *

to meet1

*

leads to 1..*

graph of part of

1..*


of

*

fulfils

defined by

*

*defines


part of

collection of *

1

Community

sub-objective

1*

Objective

has1objective of

*

configuration of

member of

*

*

Enterprise Object

Contract defines

1

defined in

*

Actor

Artefact

Resource

requires*

*

essential to

1..*

performedby

participates in1..*

1..*

concerns

referenced in*

Community Object

represents 0..1

refines 1

agreed to1..*

1..*

Contracting PartyParty



Policy: A set of rules related to a particular purpose. A rule can be expressed as an obligation, an authorization, a permission or a prohibition

Policy of

* 1..*

has

*part of

set of 1..*

Process Step

1 has

of *

to meet1

*

leads to 1..*

graph of part of

1..*


of

*

fulfils

defined by

*

*defines


part of

collection of *

1

Community

sub-objective

1*

Objective

has1objective of

*

configuration of

member of

*

*

Enterprise Object

Contract defines

1

defined in

*

Actor

Artefact

Resource

requires*

*

essential to

1..*

performedby

participates in1..*

1..*

concerns

referenced in*

Community Object

represents 0..1

refines 1

agreed to1..*

1..*

Contracting PartyParty

ITU-T/SG17 27th Nov 2002 20

Enterprise Language Concepts – Enterprise Language Concepts – Responsibility conceptsResponsibility concepts

An enterprise specification identifies those actions that involve accountability of a party.

Action

Commitment Declaration Delegation Evaluation Prescription


Enterprise Language Concepts – Enterprise Language Concepts – Core conceptsCore concepts

Model Element

Community Enterprise Object Role Action

Type

Template

has

of

*

1..*

hasfor

*

*

Policygoverns governed by

* *

This diagram is still wrong!Diagrammatic representation of these concepts is still on-going work (as part of PDAM), but it will show (when correct) how the basic (Part 2) concepts of Type and Template may be applied to many enterprise language concepts, and how Policy may be applied to instances of almost all EL concepts, including policies themselves.


StatusStatus

• IS 15414 | X.911 currently in course of IS 15414 | X.911 currently in course of publicationpublication

• Concentrates on less contentious aspects:Concentrates on less contentious aspects:– behavioural conceptsbehavioural concepts– organisational concepts (structuring communities)organisational concepts (structuring communities)– policy conceptspolicy concepts– responsibility conceptsresponsibility concepts


Work in ProgressWork in Progress

• PDAM in course of developmentPDAM in course of development– Some (minor) refinement of concepts that were contentious Some (minor) refinement of concepts that were contentious

when IS15414 went to presswhen IS15414 went to press– Inclusion of a comprehensive explanatory annexInclusion of a comprehensive explanatory annex– Inclusion of a “metamodel” – non-normative but useful for Inclusion of a “metamodel” – non-normative but useful for

tool builders and for WG19 NWI.tool builders and for WG19 NWI.

• Should be complete and issued in about 2 yearsShould be complete and issued in about 2 years– 2003-07: FPDAM Ballot start2003-07: FPDAM Ballot start– 2003-11: FPDAM Ballot close2003-11: FPDAM Ballot close– 2004-02: FDAM ballot start2004-02: FDAM ballot start– 2004-08: FDAM available for publication2004-08: FDAM available for publication


Benefits of using RM-ODPBenefits of using RM-ODP

• Coherent framework for diverse modelsCoherent framework for diverse models• Separation of concerns to match stakeholders Separation of concerns to match stakeholders

interestsinterests• 2-way traceability from Business 2-way traceability from Business

requirements to implementationrequirements to implementation• Better control of development iterationsBetter control of development iterations• Better business control of IT implementations Better business control of IT implementations

and hence more business satisfactionand hence more business satisfaction

RM-ODP Enterprise Language ISO | ITU-T 15414 | X.911

Documents

odp viewpointsitutsg17

enterprise language

odp systemprovide

overall odp picturemotivation

outlinermodp viewpointshow

itut recommendation

objects suitable

structuring rules