Video: Dab tsi yog cov chav kawm sau npe hauv UML?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Cov Chav Kawm Domain thiab Cov Khoom
Cov khoom uas sawv cev sau npe cov koom haum hu ua entities los yog sau npe khoom. Cov chav kawm lawv instantiate hu ua cov chav kawm domain . Kev ua ib rooj plaub siv yuav tsim, rhuav tshem, nug, thiab hloov kho sau npe khoom.
Ua li no, dab tsi yog cov chav kawm sau npe?
Cov chav kawm sau npe yog chav kawm uas tau tsim thiab siv rau kev tshwj xeeb sau npe uas tuaj yeem siv los ntawm ntau qhov haujlwm uas ua qhov zoo sib xws. Piv txwv li, JDBC chav kawm yog cov chav kawm domain rau kev nkag mus rau Database.
Tom qab, lo lus nug yog, dab tsi yog qhov teeb meem ntawm chav kawm? Lub sij hawm " teeb meem domain " yog hais txog thaj chaw uas suav nrog tej yam hauv ntiaj teb tiag tiag thiab cov ntsiab lus cuam tshuam nrog teeb meem tias qhov system tau tsim los daws. Domain modeling yog lub luag hauj lwm ntawm discovering "khoom" ( chav kawm , ua tau) uas sawv cev rau tej yam thiab lub tswv yim.
Dhau li ntawm no, dab tsi yog chav kawm sau hauv software engineering?
"A sau npe qauv yog ib tug sawv cev ntawm lub tswvyim tiag tiag chav kawm , tsis yog software components." Cov software Cheebtsam yog feem ntau siv nyob rau hauv ib yam khoom oriented programming lus. A sau npe qauv muaj tswv yim chav kawm , kev koom tes ntawm kev xav chav kawm , thiab tus cwj pwm ntawm kev xav chav kawm.
Tus qauv sau nrog piv txwv yog dab tsi?
Domains thiab Domain Models A sau npe yog ib phau ntawm cov ntsiab lus muaj feem xyuam, kev sib raug zoo, thiab kev ua haujlwm. Piv txwv ntawm thaj chaw suav nrog: science, engineering, medecine, lag luam, tsoom fwv, tub rog. A domain qauv yog ib pob uas muaj cov chav kawm thiab cov duab kos duab.
Pom zoo:
Dab tsi yog qhov txawv ntawm chav kawm sab hauv thiab cov chav nested?
Cov chav kawm uas tau tshaj tawm yam tsis siv qhov zoo li qub yog hu ua chav kawm sab hauv lossis chav kawm tsis zoo li qub. Cov chav kawm Staticnested yog chav kawm zoo li lwm cov tswv cuab zoo li qub ntawm cov chav kawm sab nrauv. Txawm li cas los xij, cov chav kawm sab hauv yog khi toinstance thiab nws tuaj yeem nkag mus rau cov tswv cuab ntawm pawg enclosingclass
Dab tsi yog ob chav kawm tshwj xeeb hauv hierarchy ntawm Java zam chav kawm?
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Peb puas tuaj yeem muaj ntau chav kawm pej xeem hauv chav kawm hauv Java?
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Chav kawm piav qhia txog tus qauv ntawm chav kawm yog dab tsi?
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Dab tsi yog qhov tseem ceeb ntawm IT Essentials chav kawm muaj nyob hauv Cisco Academy cov ntaub ntawv kawm?
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