UML daim duab siv cov ntaub ntawv

UML daim duab siv cov ntaub ntawv
UML daim duab siv cov ntaub ntawv

Video: UML daim duab siv cov ntaub ntawv

Video: UML daim duab siv cov ntaub ntawv
Video: qhia txiav video hauv adobe premiere pro 2024, Tej zaum
Anonim

Tsib hom kab kos yog siv rau hauv kev ua qauv, thiab UML siv cov ntaub ntawv daim duab yog ib qho cuab yeej rau kev ua qauv ntawm lub cev muaj zog uas ua lub luag haujlwm tseem ceeb hauv kev coj tus cwj pwm, chav kawm, kab ke, thiab kev ua qauv hauv subsystem. Txhua daim duab zoo li no muaj ntau tus neeg ua yeeb yam, ua ntej thiab kev sib raug zoo ntawm lawv.

siv case diagram
siv case diagram

UML daim duab siv cov ntaub ntawv siv tau dav siv hauv ntau daim ntawv thov, tshwj xeeb tshaj yog qhov kev pom ntawm lub kaw lus yuav tsum tau hais txog kev siv sib txawv lossis siv rooj plaub. Feem ntau, qhov no suav nrog kev ua qauv rau cov ntsiab lus ntawm lub system, chav kawm, lossis subsystem, lossis ua qauv rau cov kev xav tau uas siv rau tus cwj pwm ntawm cov ntsiab lus xaiv.

Daim duab siv cov ntaub ntawv yog qhov tseem ceeb rau kev qhia meej, pom thiab sau cov cwj pwm ntawm lub kaw lus. Siv nws, nws yooj yim dua rau tus tsim tawm kom nkag siab txog qhov system, subsystem lossis cov chav kawm, nrog rau saib sab nraud ntawm cov txiaj ntsig ntawm kev siv cov ntsiab lus rau ib qho ntsiab lus tshwj xeeb. Xws li daim duab UML yog qhov tseem ceeb tshwj xeeb rau kev sim cov txheej txheem ua tiav thaumncaj qha engineering, nrog rau kom nkag siab zoo dua lawv cov qauv sab hauv, tshwj xeeb tshaj yog nyob rau hauv kev rov qab engineering.

uml daim duab
uml daim duab

Cov qauv siv yog ib qho cuab yeej zoo los nrhiav lwm txoj hauv kev rau qhov xwm txheej tseem ceeb uas ua rau muaj kev vam meej. Hauv txhua kauj ruam, nug koj tus kheej cov lus nug ntau zaus: "Dab tsi tuaj yeem tshwm sim?" Thiab tshwj xeeb: "Dab tsi tuaj yeem mus tsis ncaj ncees lawm?" Ntawm no nws yog qhov zoo tshaj plaws kom paub txog qhov pib ntawm txhua qhov kev nthuav dav uas ua tau. Qhov no yuav pab koj kom tsis txhob ntxhov siab thaum ua haujlwm ntawm qhov tshwm sim yav tom ntej. Txhua yam kev daws teeb meem, uas tsuas yog ua tau, tau kawm zoo tshaj plaws txij thaum pib. Txoj kev no yuav pab koj kom tsis txhob poob siab thaum ua haujlwm ntawm qhov tshwm sim. Yog li ntawd, yog tias ua tau, xav txog ntau npaum li qhov ua tau, thiab qhov no yuav ua rau raug txo qis rau yav tom ntej.

Qhov kev xaiv zoo tshaj plaws rau kev ua haujlwm nrog cov ntaub ntawv siv cov duab yog cov duab nraaj uas qhia txog nws cov ntsiab lus. Nws yog me ntsis zoo ib yam li daim duab qhia chaw, uas yog siv nyob rau hauv cov txheej txheem. Tom qab tag nrho, lub rooj qhia cov ciam teb ntawm lub kaw lus, nrog rau kev sib cuag nrog lub ntiaj teb sab nraud.

Daim duab siv daim duab qhia meej qhia cov neeg ua yeeb yam, siv rooj plaub, thiab kev sib raug zoo ntawm lawv:

uml siv case diagram
uml siv case diagram

– kev ua yeeb yam los ntawm cov neeg ua yeeb yam ntawm qhov no lossis qhov ua ntej;

- siv cov ntaub ntawv uas suav nrog lwm yam siv.

Cov ntsiab lus ntawm cov ntaub ntawv siv hauv UML qauv tsis hais dab tsi, tab sis txoj kev ntawm daim duab qhia qhia txog txhua yam. Txawm li cas los xij, koj tuaj yeem ua yam tsis muaj daim duab. Cov kws tshaj lijpom zoo tias thaum tsim cov ntaub ntawv siv, tsis txhob siv zog ntau dhau los tsim ib daim duab. Nws yuav zoo dua yog tias koj mloog zoo rau cov ntsiab lus ntawm lawv.

UML siv daim duab kos muaj lwm yam ntxiv nrog rau kev sib raug zoo, piv txwv li txuas ntxiv. Nws yog qhov kws tshaj lij pom zoo kom zam dhau. Yog vim li cas nyob rau hauv qhov tseeb hais tias feem ntau tag nrho cov kev loj hlob pab pawg siv ntau lub sij hawm los txiav txim siab txog ntau yam kev sib raug zoo ntawm cov neeg siv. Qhov no yog lub zog pov tseg. Tom qab tag nrho, ua raws li cov lus piav qhia ntawm qhov ua ntej yog qhov yooj yim dua, qhov no yog qhov tseeb tus nqi ntawm cov cuab yeej muab zais.

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