Video: Vim li cas cov duab kos muaj txiaj ntsig?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Thaum siv Unified Modeling Language (UML), siv Case daim duab pab koj nkag siab tias tus neeg siv yuav cuam tshuam li cas nrog qhov system koj tau tsim. Thiab thaum kawg, nws yuav tsum pab koj pab neeg txheeb xyuas thiab teeb tsa cov cai. Hloov chaw, lawv sawv cev rau cov ntsiab lus siab ntawm kev siv li cas rooj plaub , cov neeg ua yeeb yam, thiab koj qhov system cuam tshuam.
Ntxiv rau qhov no, vim li cas siv daim duab kos yog qhov tseem ceeb?
Lub hom phiaj ntawm Siv Case Diagrams Siv cov duab kos yog siv los sau cov kev cai ntawm ib qho system nrog rau kev cuam tshuam sab hauv thiab sab nraud. Cov kev xav tau no feem ntau yog cov qauv tsim. Yog li ntawd, thaum lub system tau txheeb xyuas los sau nws cov haujlwm, siv Cov ntaub ntawv raug npaj thiab cov neeg ua yeeb yam raug txheeb xyuas.
Tom qab ntawd, lo lus nug yog, dab tsi yog qhov tseem ceeb los txiav txim siab hauv kev siv cov duab kos? Qhov tseem ceeb ntawm Siv cov ntaub ntawv : Siv cov ntaub ntawv yog tseem ceeb vim lawv nyob rau hauv ib tug taug qab hom. Li no lawv ua kom yooj yim nkag siab txog cov kev xav tau ntawm kev ua haujlwm hauv qhov system thiab kuj ua kom yooj yim rau txheeb xyuas ntau yam kev sib cuam tshuam ntawm cov neeg siv thiab cov tshuab hauv ib puag ncig.
Tsis tas li ntawd, lub hom phiaj ntawm kev siv rooj plaub yog dab tsi?
A siv li cas yog ib tug txheej txheem siv nyob rau hauv lub system tsom xam los txheeb xyuas, qhia meej thiab npaj system cov kev cai. Cov siv li cas yog tsim los ntawm cov txheej txheem ua tiav ntawm kev sib cuam tshuam ntawm cov tshuab thiab cov neeg siv hauv ib puag ncig tshwj xeeb thiab cuam tshuam rau lub hom phiaj tshwj xeeb.
Koj txhais li cas txog kev siv cov ntaub ntawv?
A siv li cas yog ib daim ntawv teev cov kauj ruam uas qhia txog yuav ua li cas ib tug txheej txheem yuav ua tau nyob rau hauv ib tug system. Cov ntaub ntawv taug kev koj los ntawm cov kauj ruam uas tus neeg ua yeeb yam yuav ua kom ua tiav lub hom phiaj. A siv li cas yog sau los ntawm tus kws tshuaj ntsuam xyuas kev lag luam uas tau ntsib nrog txhua tus neeg siv, lossis tus neeg ua yeeb yam, los sau cov lus qhia meej hauv cov txheej txheem.
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