Methodology.dayclass

8/18/2019 Methodology.dayclass

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The Fun Filled World ofMethodologies

By Eric DeLisle & Sasan Rastegarlari


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Presentation Overview

What is a Methodology?

Who uses Methodologies?

What are Methodologies used for? Several tyes of Methodologies Waterfall

SDL!

R"D "gile

O#$ect%Oriented


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What is a Methodology?

Multi%ste aroach to systesdeveloent

'nfluences the (uality of the )inalroduct

!orehensive

!onsistent ethod with theOrgani*ations anageent style+


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Who ,ses Methodologies?

Most Organi*ations and )irs -oday 'BM. Microsoft. Monsanto. /"S". "-&-.

Drury 0otels. Edward 1ones. "+B+

Ma$ority of Organi*ations and )irsuse a secific tye of ethodologythat is tailored to their needs+


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What "re Methodologies ,sed )or?

Systes Develoent 2uidelines or References

Ste #y Ste rocess Leads to final roduct

"nalysis 'nforation

2athered and ,sed to hel thedeveloent rocess


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0istory of Methodologies

!outer%#ased 'nfo Systes #egan

in the 34567s+

34867s introduced icrocouters !"SE tools develoent

Syste develoers went fro #uilders tointegrators+

34467s #rought systes integration+ 9isual rograing environents+

Present day 'nfo Systes 'nternet. 'ntranet. and E:tranets+


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Poular Methodologies

-he Waterfall Methodology

-he SDL! Methodology

-he R"D Methodology "gile Methodologies e;tree Prograing


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Waterfall Methodology

http://en.wikipedia.org/wiki/Image:Waterfall_model.png


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Overview

'ntroduced #y W+W+ Royce in 34>6

't was later redesigned using a ore

iterative rocess. unfortunately this waywas ignored resulting in the currentWaterfall ethodology

Most Syste "nalysts do not lie the

Waterfall Method Each hase ust #e coleted erfectly

-here is no overla or oving #acwardin hases


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Phases

Requirements@ -he re(uireents ofthe syste are collected and set in

stone+ Design@ " #luerint is ade for the

rograers using the reviouslycollected re(uireents+

Implementation@ Syste coonentsare designed #y coders and integratedtogether+

Testing@ "fter integration the syste istested and #ugs are reoved+

Installation & Maintenance@ -he finalinstallation of the syste is done at thishase+ ,sers are trained and the systeis aintained #y the syste designers+


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Pros

-ie sent early in roduction cansave a coany hundreds ofthousands of dollars+

More ehasis is laced ondocuentation than any other

ethods+

ons

'ossi#le to now e:actly what isneeded in each hase of the software

rocess #efore soe tie is sent in thehase following it+

Re(uirents are loced in too earlyleaving no roo for user feed#ac andodification+

-oo uch ehasis on deadlines ratherthan user re(uirents+


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Systes Develoent Life !ycle


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Raid "lication Develoent


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e;tree Prograing


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e;tree Prograing


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e;tree Prograing


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e;tree Prograing


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Rational ,nified Process


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!onclusion

Who uses Methodologies?

What are Methodologies used for?

" #rief history of Methodologies?

Poular ethodologies in the SystesDesign Process+ Waterfall



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Than. /ou

Gou May /ow"lauseH

Methodology.dayclass

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