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Language and Metamodels for SEMAT

Arne J. Berre Shihong Huang Brian Elvesæter

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Layer 1 - Core

Layer 2 - PracticeAndAlpha

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Layer 3 Activity Space and Activity elements

Layer 3 Competency and Skill elements

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Layer 3 Pattern elements

Layer 4 MethodAndLibrary

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SEMAT Diagrams – Graphical Notation

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SEMAT – Textual Notation

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Introduction to ISO/IEC 24744

Cesar Gonzalez-Perez Brian Henderson-Sellers

Comparison at a glance

SPEM ISO 24744

Process aspects only

Method domain only

Obscure and informal extension mechanisms

Unable to express non-trivial scenarios

Highly dependent on UML

Process, product and quality aspects

Method and endeavour domains

Easy and intuitive extension mechanisms

Copes with complex scenarios

Self-contained

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Comparison, graphically

24744

scope

abstr

action

SPEM

UML

History of 24744

ISO/IEC 24744 is an international standard

Based on experience: ◦ Fujitsu, Microsoft, SQI, JPL, plus other 20

◦ Input from 25+ countries

◦ Australian AS 4651 (2004)

◦ Field consulting from UTS, Neco

◦ Top-notch academic research

◦ Errors of previous attempts

Led from academia

2003-2007

Submission to OMG, February 20th, 2012

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Moving on to metamodelling

Task Kind

Name Purpose MinCapLev

“Code Writing” “To write code…” 1

Task

Start End Duration

Code Writing

Language

12-Sep-07 15-Sep-07 3 “C#”

partitioned type

powertype

clabject

metamodel

method

endeavour

Putting things in context

Task Kind

Name Purpose MinCapLev

“Code Writing” “To write code…” 1

Task

Start End Duration

Code Writing

Language

12-Sep-07 15-Sep-07 3 “C#”

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Metamodel areas

Resources Templates

Endeavour elements

Methodology elements

MethodologyElement

+Purpose

+MinCapabilityLevel

WorkUnitKind

+Description

WorkProductKind

+Definition

ModelUnitKind

+Name

Template Resource

+Name

Language

+Name

Notation

+Expression

Constraint

+Description

+MinCapabilityLevel

Outcome

EndeavourElement

+StartTime

+EndTime

+Duration

WorkUnit

+CreationTime

+LastChangeTime

+Status

WorkProduct

ModelUnit

+Description

GuidelineProducerKind

+Name

ProducerStage

StageKind

Metamodel overview

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Summary

24744: ◦ Captures what developers do (endeavour) by enhancing expressiveness

◦ Integrate endeavour and method domains (powertype patterns)

◦ Integrate process and product

◦ Address quality and capability issues (MinCapabilityLevel attribute)

◦ Support for affordable extensibility (regular OO mechanisms)

SEMDM Diagrams – Graphical Notation

Lifecycle diagrams, which represent the overall structure of a method (or part of it).

Enactment diagrams, which represent a specific endeavour (or part of it) and its relationship to the corresponding method.

Dependency diagrams, which represent the abstract support/dependency relationships among the major components (i.e. producer kinds, work unit kinds and work product kinds) of a methodology.

Process diagrams, which describe the details of the process kinds used in a method.

Action diagrams, which show the detailed usage interactions between task kinds and work product kinds.

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StageWithDurationKind TimeCycleKind PhaseKind

BuildKind InstantaneousStageKind MilestoneKind

ProcessKind ProcessKind TechniqueKind

OutCome WorkProductKind DocumentKind

ModelKind SoftwareItemKind HardwareItemKind

CompositeWorkProductKind ProducerKind TeamKind

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RoleKind ToolKind Person

PreCondition PostCondition Conglomerate

Guideline

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A dependency diagram based on a refinement

An action diagram showing how requirements-related task kinds interact

with requirements- related work products.