12-1 - Course Review

8/18/2019 12-1 - Course Review

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Course Review TDH for UofC

9 Apr 2015


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Software EngineeringActivities

• Requireents an! Speci"cation

• Design

•

#o!e$ing• %p$eentation

• &ua$it' Assurance

•

(rocess #anageent

) *et+,ri!ge-*agani.re2005

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Requireents an!Speci"cation

• /unctiona$ requireents w+at 'ours'ste !oes to so$ve custoerspro,$es

• on3functiona$ requireents +ow'our s'ste !oes w+at it !oes


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• Domain analysis – +o are 'our custoers6

• Requirements gathering – 7Sei3structure!8 %nterviews

– /ocus groups

– ,servation 7s+a!owing8


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• Requirements specifcation – De"ning ,ot+ functiona$ an! non3

functiona$ requireents suc+ t+at

!eve$opent can ,egin – Can ,e !one using tec+niques t+at

over$ap wit+ ot+er software

!eve$opent activities• Use cases; tests; <


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Design

• De"ning su,s'stes – Using c$ass !iagras

•

User interface !esign – (rotot'pes – User3centere! !esign


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Design

• (rotot'pes – A set of iages t+at i$$ustrate +ow t+e

s'ste wi$$ $oo> at !i?erent states

– A$$ows custoers to see• +at t+e "na$ s'ste wi$$ $oo> $i>e

• How functiona$it' wi$$ ,e triggere!


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Design

• *ow3"!e$it' protot'pe – Set of roug+ s>etc+es of t+e s'ste

– (ossi,$' !one wit+ pen an! paper

– /ocus sta's on features an! usa,i$it'

• Hig+3"!e$it' protot'pe – Set of +ig+3qua$it' iages or sei3

wor>ing co!e – Users interact wit+ t+e $i>e rea$ s'stes

– /ocus is on st'$e; $oo> an! fee$



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Design

• User3centere! !esign – Un!erstan! user so t+at 'ou can

– Re!uce costs; increase eBcienc'; etc

– Usa,i$it' $earna,i$it'; eora,i$it';eBcienc'; errors; satisfaction

– Enco!ing tec+niques wa's of

counicating inforation to t+e user

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#o!e$ing

• Use cases - use case !iagras

• Structura$ o!e$ing – C$ass !iagras

– ,ect !iagras


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#o!e$ing 3 Use Cases

• Name: Post announcement toSENG301

• Actor: Instructor or TA

• Goal: Disseminate courseinformation to studentsenrolled in SENG301

• Precondition: Actor is loggedin to Blackoard and is on t!eroot screen

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#o!e$ing 3 Use Cases

• Flow:

• Postcondition: Announcement is

made a"ailale to all usersenrolled in SENG301 course

Actor se$ects SEF401 froavai$a,$e courses

G$ac>,oar! !isp$a's t+e SEF401+oe page

< <

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#o!e$ing 3 Use Case Diagra


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%p$eentation

• Actua$$' creating t+e s'ste

• #a' ,e sip$i"e! t+roug+ t+e use ofcoon software !esign patterns

• ee! to anage coup$ing vsco+esion

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%p$eentation Software Design (atterns

• Creationa$ patterns – A,stract factor'

– /actor' et+o!

– (rotot'pe

– Sing$eton

1=


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• Structura$ patterns – A!apter

– Gri!ge

– Coposite

– Decorator

– /aa!e

– /$'weig+t – (roI'

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• Ge+aviora$ patterns – C+ain of responsi,i$it'

– Coan!

– #eento

– ,server

– State

– Strateg' – %terator

– Jisitor

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%p$eentation Coup$ing

• T+e !egree to w+ic+ eac+ part of'our progra re$ies on ot+er parts of'our progra

• Soet+ing 'ou want to iniiKe

+ttp--enwi>ipe!iaorg-wi>i-Coup$ingL7coputerLprograing8

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http://en.wikipedia.org/wiki/Coupling_(computer_programming)http://en.wikipedia.org/wiki/Coupling_(computer_programming)http://en.wikipedia.org/wiki/Coupling_(computer_programming)http://en.wikipedia.org/wiki/Coupling_(computer_programming)


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%p$eentation Co+esion

• T+e eItent to w+ic+ e$eents of ao!u$e ,e$ong toget+er

• Soet+ing 'ou want to aIiiKe

• See a$so separation of concerns – (utting !i?erent

concerns-responsi,i$ities into t+e sae

c$ass-o!u$e

+ttp--enwi>ipe!iaorg-wi>i-Co+esionL7coputerLscience8

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http://en.wikipedia.org/wiki/Cohesion_(computer_science)http://en.wikipedia.org/wiki/Cohesion_(computer_science)http://en.wikipedia.org/wiki/Cohesion_(computer_science)http://en.wikipedia.org/wiki/Cohesion_(computer_science)


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&ua$it' Assurance

• Review an! %nspection – a$>ing t+roug+ co!e - ot+er !ocuents

on a proector in front of t+e tea

• Testing (Automated) – Arrange

– Assert

– Act



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&ua$it' Assurance

• Tests +e$p wit+ – Docuentation

– Speci"cation

– Gug repe$$ent

– Safet' net

– Defect $oca$iKation


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&ua$it' Assurance

• Foo! tests – Do no +ar

– Are se$f3c+ec>ing

– Are repeata,$e

– Are ro,ust

– Are sip$e


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&ua$it' Assurance

• T'pes of testing – G$ac> ,oI !o not $oo> at interna$s of

s'ste an! test fro t+e custoers

perspective – +ite ,oI focus on s'ste interna$s

an! focus on !eve$opers perspective


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&ua$it' Assurance

• Scope of testing – Unit testing test an in!ivi!ua$ et+o!

or c$ass in iso$ation

– %ntegration testing test an in!ivi!ua$su,s'ste or set of c$asses

– S'ste testing test a feature in t+e

progra fro en! to en!


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&ua$it' Assurance

• Test3!riven !eve$opent 7TDD8 – rite a new test an! watc+ it fai$

– rite co!e unti$ a$$ test pass

– Refactor co!e w+i$e >eeping a$$ testspassing


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(rocess #anageent

• (roect p$anning – %nc$u!es cost estiation

– %nc$u!es creating ,ac>$ogs; stor' aps;

etc• (roect trac>ing

– %nc$u!es ,urn3up c+arts; ,urn3!own

c+arts; etc• #anaging 'our !eve$opent process

– +ic+ tas>s ta>e p$ace at w+ic+ tie6


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(rocess #anageent Cost Estiation

• Units of estiation inc$u!e – Ca$en!ar tie +ow an' wee>s ,efore %

+an! 'ou t+e wor>ing s'ste6

– E?ort +ow an' person3+ours wi$$ itta>e to cop$ete t+is tas>6

– Re$ative e?ort +ow !iBcu$t is eac+ tas>

copare! to ot+er tas>s 7inc$u!ing tas>sweve a$rea!' !one8• Units gu' ,ears; e$$' ,eans; etc


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(rocess #anageent Cost Estiation

• Mester!a's weat+er +ow $ong !i!t+is ta>e us $ast tie we !i!soet+ing sii$ar6

•

%nc$u!e estiates for – Gest case – EIpecte! case – orst case

• a's to gat+er estiates – ($anning po>er – Si$ent grouping


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(rocess #anageent Gac>$ogs

+ttp--wwwagi$e:2co-en-agi$e3coac+ing3copan'-agi$e3info3center->eep3,a$ance3pro!uct3owner-

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(rocess #anageent (ERT C+arts


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(rocess #anageent Fantt C+arts


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(rocess #anageent Stor' #aps

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time

Ne? (atton; wwwAgi$e(ro!uctDesignco


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(rocess #anageent Gurn Up C+art

Naes S+ore+ttp--aess+oreco-G$og-Ra,u-

4:


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(rocess #anageent Gurn Down C+art

Oeni Hirana,i +ttp--wwwinfoqco-artic$es-agi$e3>an,an3,oar!s

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http://www.infoq.com/articles/agile-kanban-boardshttp://www.infoq.com/articles/agile-kanban-boardshttp://www.infoq.com/articles/agile-kanban-boardshttp://www.infoq.com/articles/agile-kanban-boardshttp://www.infoq.com/articles/agile-kanban-boardshttp://www.infoq.com/articles/agile-kanban-boardshttp://www.infoq.com/articles/agile-kanban-boards


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Software (rocess #o!e$s


pportunistic #o!e$

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aterfa$$#o!e$7%!ea$8

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aterfa$$#o!e$

7(age 18

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(+ase!

Re$ease#o!e$

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ConcurrentEngineeri

ng #o!e$

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• Individuals and interactions – over processes an! too$s

• Working sotare – over copre+ensive !ocuentation

• !ustomer colla"oration – over contract negotiation

• Responding to change – over fo$$owing a p$an

+ i$ if

Agi$eDeve$opent
http://agilemanifesto.org/http://agilemanifesto.org/

Documents

12-1 - Course Review