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System AnalysisSystem Analysis& Design& Design

Management Information System Project

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INDEXINDEX

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SYSTEMSYSTEM A system is a set of elements (often called 'components'

instead) and relationships which are different fromrelationships of the set or its elements to other elementsor sets.

Systems have behavior , which involves inp ts,processing and o tp ts of material, energy, information,or data.

Systems may have some f nctions or gro ps off nctions.

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%he Systems &evelopment *ife !ycle%he Systems &evelopment *ife !ycle

(S&*!)(S&*!)

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What is the System DevelopmentWhat is the System Development

Cycle?Cycle?+hat are g idelines for system development

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What is the SDLC?What is the SDLC?

+hat are the phases of the system development cycle

Next

Phase 1. Planning

Phase 2. Analysis

Phase 3. Design

Phase 4. ImplementationPhase 5. Support

evie! p"o#ect "e$%estsP"io"iti&e p"o#ect"e$%ests'llocate "eso%"cesI(enti)y p"o#ect(evelopment team

Con(%ct p"elimina"y investi*ationPe")o"m (etaile( analysis activities+

St%(y c%""ent systemDete"mine %se" "e$%i"ementsecommen( sol%tion

'c$%i"e ha"(!a"ean( so)t!a"e, i)necessa"yDevelop (etails o)system

Develop p"o*"ams, i) necessa"yInstall an( test ne! systemT"ain %se"sConve"t to ne! system

Con(%ct post-implementationsystem "evie!I(enti)y e""o"s an( enhancementsMonito" system pe")o"mance

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The 'ctivities o) the 'nalysis PhaseThe 'ctivities o) the 'nalysis Phase

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In)o"mation .athe"in* an( Mo(el /%il(in*In)o"mation .athe"in* an( Mo(el /%il(in*

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Fact Fin(in* Metho(sFact Fin(in* Metho(s

-eview e isting reports, forms, and proced re descriptions Interview and disc ssion processes with sers #'serve and doc ment ' siness processes / ild prototypes &istri' te and collect 0 estionnaires !ond ct joint application design (1A&) sessions -esearch vendor sol tion

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'nalysis Techni$%e + evie! E0istin* epo"ts'nalysis Techni$%e + evie! E0istin* epo"ts

Identify ' siness r les, discrepancies, andred ndancies

/e ca tio s of o tdated material #'tain preliminary nderstanding of processes 2se as g idelines 3 vis al c es to g ide interviews

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Sample Chec2list to P"epa"e )o" 1se" Inte"vie!sSample Chec2list to P"epa"e )o" 1se" Inte"vie!s

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'nalysis Techni$%e +'nalysis Techni$%e +

O3se"ve an( Doc%ment /%siness P"ocessesO3se"ve an( Doc%ment /%siness P"ocesses

5aries from office wal6thro gh to performing act al tas6s

ot necessary to o'serve all processes at same level of detail

May ma6e sers nervo s, so se common sense

May 'e doc mented with wor6flow (activity) diagrams

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'nalysis Techni$%e + 4%estionnai"es'nalysis Techni$%e + 4%estionnai"es

*imited and specific information from a large n m'er ofsta6eholders

Preliminary insight into ' siness

ot well s ited for gathering detailed information

!losed$ended 0 estions direct person answering 0 estion

#pen$ended 0 estions enco rage disc ssion and ela'oration

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'nalysis Techni$%e+'nalysis Techni$%e+

5oint 'pplication Desi*n Sessions 65'D7 5oint 'pplication Desi*n Sessions 65'D7

pedite investigation of systems re0 irements

See6s to compress fact$finding, modeling, policy formation, andverification activities into shorter time frame

!ritical factor is to have all important sta6eholders present

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'nalysis Techni$%e + St"%ct%"e( !al2th"o%*h'nalysis Techni$%e + St"%ct%"e( !al2th"o%*h

Important tool for 5alidating the re0 irements

ffective means of implementing 0 ality control early in project

5erify and validate system re0 irements

-eview of findings from investigation and of models 'ased on findings