inf5120 ”modellbasert systemutvikling” ”modelbased system ......– the sprint – sprint...

Telecom and Informatics 1

INF5120”Modellbasert Systemutvikling”

”Modelbased System development”

Lecture 5: 15.02.2016Arne-Jørgen Berre

[email protected] or [email protected]

Telecom and Informatics

Course parts (16 lectures)

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n January – February (1-7) (BAE/WebRatio): n MDE-1: Introduction to INF5120n MDE-2: Modeling structure and behaviour (UML and UML 2.0 and metamodeling) ( B. Hjelle)n BAE-1: Business Architecture – Business Model Canvas - Strategyzer tool. n SAE-1: WebRatio for Mobile App development (Get an App up and running!)n BAE-2: Essence, Scrum, User stories and Use cases 2.0, Backlog, with Someone n BAE-3: BPMN process, VDML and UML Activ.Diagrams, … (MD/EA, Smaply and Balsamiq)n BAE-4: Service Design, AT ONE,Touchpoints, UI, UX, Smaply and Balsamiq (Amela, Ragnhild)n Oblig 1: BA Spec, WebRatio App1 (individual) (end of February, March 7th), Agile Scrumn March (8,9,10) (MDE/IFML/Client-Side): n MDE-3: Model driven engineering – Metamodels, DSL, UML Profiles, EMF, Sirius Editorsn SAE-2: IFML – Interaction Flow Modeling Language, WebRatio advancedn MDE-4: DSLs – MOFScript, ATL Eclipse Sirius, transformation technologiesn Oblig 2: Sirius DSL Editor for IFML +/- (indivual), WebRatio/IFML App2 UI (simple) (end of

March, April 4th )n April (11,12,13) (SAE/UML/Server-side): n SAE-3: WebRatio Server side and IFML, Data models/UML, Architecture patternsn SAE-4: UML Service Modeling, ServiceML,SoaML, UML 2.0 Composition, MagicDrawn SAE-5: Non Functional requirements – OCL and PLanguagen Oblig 3: SA Spec (More models), WebRatio/IFML App 3 Server (end of April, May 2nd)n May (14,15,16): (Bringing it together)n SAE-6: Final WebRatio App demo and discussion day (May 2nd) n MDE-5: Enterprise Architecture, TOGAF, UPDM, SysML – DSLs etc. – Big picturen MDE-6: Conclusions/Summary of the coursen Exam (4 hours), (June 6th)


Relevant Essence-related practicedescriptions

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• BusinessModelCanvasdesign- Strategyzer• ValuePropositionDesign- Strategyzer• ATONEServiceDesignWorkshops–Symphonical SomeOne SPEED• ServiceJourneydesigns– Smaply,ExperienceFellow• Vocabulary,Terminology,Information,Ontology designs-MagicDraw• UserStoryandUse Cases• BusinessProcessModelingwithBPMN2.0• UIMockup/Concept designs–Balsamiq• Scrum development practices• IFMLbased developmnet –WebRatio• Graphical Editordesign– Sirius• …..

Seealso http://inf5120.modelbased.net/

www.semat.org

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Essence – Kernel and Language for Software Engineering Methods

The joint submission for the OMG FACESEM standard“A Foundation for the Agile Creation

and Enactment of Software Engineering Methods”

[email protected]

Bookisavailablenow– Safaribooksonline/AddisonWesley

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Alphas:TheEssentialThingstoWorkWith

Customer

Solution

Endeavor

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Alphas:ExampleRequirementsDescriptionWhat the software system must do to address the opportunity and satisfy the stakeholders.It is important to discover what is needed from the software system, share this understanding among the stakeholders and the team members, and use it to drive the development and testing of the new system.Associationsscopes and constrains : Work

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ActivitySpaces:TheEssentialThingstoDo

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Explore Possibilities

Ensure Stakeholder Satisfaction

Shape the System

Implement the System

Test the System

Deploy the System

Use the System

Operate the System

Understand Stakeholder Needs

Prepare to do the Work

Coordinate Activity

Support the Team Stop the WorkTrack Progress

Understand the Requirements

ActivitySpaces:Examples

Scrum Essentials PracticeActivitySpace

Activity

ActivityPredecessorRelationship

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AgileandLean

Specifically,beingagileinmethodengineeringmeans:1. Activepractitionerengagementisimperative.2. Thebestmethodtostartfromistheonetheteamalreadyhas.3. Theteamisempoweredtochangethemethodtofittheirexperience.Thebest

methodemergefromtheteamitself.4. Replaceonepracticeatatimeandmakesureitworksbeforemovingontothenext.5. Adaptthepracticeearlyandoftenbasedonwhatyouhavelearnt.6. Capturethemethodaslightaspossible(butnotlighter)focusingontheessentials.7. Adoptingamethodwithinateamismosteffectivelyandefficientlydonethroughface

tofacediscussions8. Acollaborativeandcooperativeapproachbetweenallstakeholdersisessential.9. Better,fasterandhappier(teamaswellascustomers)aretheprimarymeasureof

success.10. Agilepromotessustainable improvement.Thepractitionersshouldbeabletomaintain

aconstantimprovementpaceindefinitely.

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No other process or method initiative has grabbed the attention from the developer community as much as agile.

St o c kho lm, Sw e d e n

www.semat.org

2011

Scrum–withEssence

BrianElvesæterArneJ.Berre

Objective

• ExercisetheSEMATKernelandLanguage

• IllustratetheSEMATapproach– OneexampleofhowtheScrumpracticemaybemappedtotheSEMAT

KernelandLanguage

• Developandapplymethodsforprojects– AgilerequirementswithUserStoriesand/orUseCasespractices– AgileprojectmanagementwithScrumor"Scrum-like"practices

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KernelLanguage

PracticeExamples

SEMATGuidelines

Specification

Feedback(Issues and Suggestions)

Develop

Apply

AboutScrum

• ScrumconsistsofScrumTeamsandtheirassociatedroles,events,artifacts,andrules.

• Scrum’sroles,artifacts,events,andrulesareimmutableandalthoughimplementingonlypartsofScrumispossible,theresultisnotScrum.

• Source– K.Schwaber andJ.

Sutherland,"TheScrumGuide",Scrum.org,October2011.

– http://www.scrum.org/storage/scrumguides/Scrum_Guide.pdf

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ScrumConcepts

• Scrumteam(roles)– ProductOwner– DevelopmentTeam(ofdevelopers)

– ScrumMaster

• Scrumartifacts– ProductBacklog– SprintBacklog– Increment

• Scrumevents– TheSprint– SprintPlanningMeeting– DailyScrum– SprintReview– SprintRetrospective

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Step0:SEMATKernel&EssenceLanguageConcepts

• AstandardKernel providesabaselinestartingpoint–a"map"ofthesoftwaredevelopmentendeavour.

• Practices adddetailsandprovidespecificguidanceonparticularaspectsofthesoftwaredevelopment

• Keylanguageconcepts:Alpha,ActivitySpace,WorkProduct andActivity

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Alpha

Activity Space

Work Product

Activity

Kernel Practice

Step1a:IdentifyrelevantKernelAlphas

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Step1b:OutlinetheScrumPractice

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Scrum Requirements

Work

Team

SoftwareSystem

Step2a:Addsub-alphas

• ExtendingtheWorkAlpha • TheWorkalphaistypicallyusedforthedurationofadevelopmentprojectthatmaycoveranumberofsprints.

• Thuswedefineanewsub-alphacalledSprint.

• Sub-alphasdrivetheirparentalphas

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Driv

es

Step2b:Definealphastatesandcheckpoints

• SpecificScrumrulesaredefinedaspartofthealphastatecheckpoints.

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Step3:AddWorkProducts

• "TheProductBacklog isanorderedlistofeverythingthatmightbeneededintheproductandisthesinglesourceofrequirementsforanychangestobemadetotheproduct."

• "TheSprintBacklog isthesetofProductBacklogitemsselectedfortheSprintplusaplanfordeliveringtheproductIncrementandrealizingtheSprintGoal."

• "TheIncrement isthesumofalltheProductBacklogitemscompletedduringaSprintandallpreviousSprints."

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Step4a:DefineActivities

• "TheworktobeperformedintheSprintisplannedattheSprintPlanningMeeting."

• "TheDailyScrumisa15-minutetime-boxedeventfortheDevelopmentTeamtosynchronizeactivitiesandcreateaplanforthenext24hours."

• "ASprintReviewisheldattheendoftheSprinttoinspecttheIncrementandadapttheProductBacklogifneeded."

• "TheSprintRetrospectiveoccursaftertheSprintReviewandpriortothenextSprintPlanningMeeting."

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Step4b:IdentifyrelevantKernelActivitySpaces

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Step4c:RelateactivitiestoKernelActivitySpaces

• NB!Justonepossiblesuggestion.TheorganizationdependsamongstothersonhowoneinterpretanddefinethecompletioncriteriaoftheActivities.

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Outline

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• ScrumPractice– ReferenceExample

• DefiningtheScrumPractice

• AuthoringthePracticeintheEssWork PracticeWorkbench

• Questions

Sources

• OMGEssencespecification– OMG,"Essence– KernelandLanguageforSoftwareEngineeringMethods",

OMGDocumentad/2013-02-01,18February2013.– http://semat.org/wp-

content/uploads/2013/02/Essence_final_submission_18Feb13.pdf

• ScrumGuide– KenSchwaber and JeffSutherland,"ScrumGuide",October2011.– http://www.scrum.org/Portals/0/Documents/Scrum%20Guides/Scrum_Gui

de.pdf

• Practiceauthoringtool– EssWork PracticeWorkbench– http://www.ivarjacobson.com/EssWork_Practice_Workbench/

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PracticeExplorer

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The Practice Explorer shows Practice Workbench projects

The Essence Kernel project contains the elements defined in the OMG Essence specification

Alphas that represent the essential things to work with

Activity Spaces that represent the essential things to do

ETextile,GuidelineandCardviews

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When selecting an element in the Practice Explorer you can switch between different views

The ETextile Source view provides the main editor for authoring the practice using plain text and annotations

The Guideline Preview renders how the guideline will be presented in HTML

The Overview Card Preview renders the card presentation

ScrumEssentials

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The Scrum practice is created as a separate practice project in the Practice Workbench

The Scrum practice extends the Essence Kernel by providing more detailed guidance.

Drag and drop the relevant Alphas to extend from the Essence Kernel into the Scrum practice project

Drag and drop the relevant Activity Spaces to extend from the Essence Kernel into the Scrum practice project

ScrumRoles

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Scrum roles are represented as Patterns

Product Owner (Guideline Preview)

Product Owner (Card Preview)

ScrumSprint

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Sprint is represented as a sub-alpha of Work

The Sprint has States with Checkpoints

The Sprint has associated the Work Product Sprint Backlog that contains the set of Product Backlog items selected for the Sprint, and the plan for delivering the product Increment

Sprint (Card Preview)

Sprint in Under Control State(Card Preview)

Under Control(State Card Preview)

ScrumActivities

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The Scrum events (except the Sprint which is represented as an Alpha) are represented as Activities

Sprint Planning Meeting (Card Preview)

The Sprint Planning Meeting activity provides guidance on how to achieve the Planned state of the Sprint.

The Sprint Planning Meeting activity provides guidance on how to achieve the Planned state of the Sprint.

Questions

• Email:– [email protected]

• OMGwebsite:– http://www.omg.org

• SEMATwebsite:– http://www.semat.org

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Introduction to The Essentials

Module 2 – Software Development Essentials


Manifesto for Agile Software Development

• Individuals and interactions over processes and tools• Working software over comprehensive documentation• Customer collaboration over contract negotiation• Responding to change over following a plan

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http://agilemanifesto.org/


User Story template

• I <in the role of XX> needs functionality <zzz> to achieve the goal of <YYY>

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Backlog metamodel


Use case modeling

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Create GUI Mockups

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Balsamiq: http://www.balsamiq.com


Template of a Use Case Description

……….


User Story template

n I <in the role of XX> needs functionality <zzz> to achieve the goal of <YYY>

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Backlog metamodel


Introduction to The Essentials Module 3 – Use-Case Essentials


Use-Case 2.0

Module 2 – Finding Actors and Use Cases


Use-Case 2.0

Module 7 - Adapting Your Use-Case Model - Using Include and Extend