Cov txheej txheem:
Video: Dab tsi yog qhov system tsim theem ntawm SDLC?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Qhov System Design
Qhov no yog qhov theem ntawm kev tsim qauv . Hauv tsim theem tus SDLC txheej txheem txuas ntxiv mus los ntawm cov lus nug ntawm kev tshuaj ntsuam theem mus li cas. Qhov laj thawj tsim tsim tawm thaum lub sij hawm tsom xam yog hloov mus rau hauv lub cev tsim - Cov lus piav qhia ntxaws txog qhov yuav tsum tau daws qhov teeb meem qub.
Tsis tas li ntawd, cov theem ntawm kev tsim qauv yog dab tsi?
Cov dej num no, los yog theem , feem ntau suav nrog kev npaj, tsom xam, tsim , kev siv, thiab kev saib xyuas / kev txhawb nqa.
Ib tug kuj yuav nug, SDLC yog dab tsi nyob rau hauv cov ntaub ntawv system? Hauv tshuab engineering, cov ntaub ntawv systems thiab software engineering, lub tshuab kev loj hlob lub neej voj voog ( SDLC ), tseem hu ua daim ntawv thov kev txhim kho lub neej-kawg, yog txheej txheem rau kev npaj, tsim, sim, thiab xa tawm cov ntaub ntawv system.
Hais txog qhov no, lub ntsiab lus ntawm kev txhim kho lub voj voog yog dab tsi?
Stands rau " System Development Lifecycle ." SDLC yog ib txoj hauv kev los tsim thiab tswj kom tau ib qho qhov system siv nyob rau hauv cov ntaub ntawv technology. Defining - Nyob rau theem no, tus general kev loj hlob txoj kev npaj yog funneled rau hauv cov txheej txheem tshwj xeeb. Cov kev cai tshwj xeeb ntawm qhov kev zov me nyuam yog txhais.
Koj tsim ib qhov system li cas?
Tsim Ib Qhov Kev Tsim Qauv: Phau Ntawv Qhia Ib Kauj Ruam
- Tsim cov UI Inventory rau Cov Qauv Tsim.
- Tau txais Lub Koom Haum Yuav-Nyob rau hauv Tsim System.
- Tsim ib pab neeg tsim kev tsim ntau yam.
- Tsim Cov Cai thiab Cov Ntsiab Cai rau Txoj Cai Tsim.
- Tsim Cov Xim Palette rau Cov Qauv Tsim.
- Tsim cov Typographic Scale rau Cov Qauv Tsim.
Pom zoo:
Plaub theem ntawm allegory ntawm lub qhov tsua yog dab tsi?
Tseeb, nyob rau hauv cov nqe lus no Plato distinguishes plaub sib txawv kev txawj ntse lub xeev (ie, hom kev paub) txuam nrog txhua theem ntawm kev faib kab (thiab tej zaum nrog cov allegory): kev xav (eikasia), kev ntseeg (pistis), kev txawj ntse (dianoia) thiab vim li cas (noesis)
Dab tsi yog qhov tsim qauv tsim qauv tsim thiab lub cev database tsim?
Logical database modeling suav nrog; ERD, daim duab ua lag luam, thiab cov ntaub ntawv tawm tswv yim rau cov neeg siv; whereasphysical database modeling suav nrog; server qauv daim duab, database tsim cov ntaub ntawv, thiab cov neeg siv cov ntaub ntawv tawm tswv yim
Dab tsi yog qhov zoo ntawm txheej txheej rau kev tsim qauv hauv kev khiav hauj lwm qhov system?
Nrog rau txheej txheej, txheej hauv qab yog cov khoom siv kho vajtse, thaum txheej siab tshaj plaws yog cov neeg siv interface. Lub ntsiab kom zoo dua yog simplicity ntawm kev tsim kho thiab debugging. Qhov teeb meem tseem ceeb yog txhais cov txheej txheem ntau yam. Lub ntsiab tsis zoo yog tias OS nyiam ua haujlwm tsawg dua li lwm yam kev siv
Yuav ua li cas yog ua nyob rau hauv lub system tsom xam theem ntawm kev txhim kho system?
Kev Ntsuam Xyuas Qhov System Qhov no suav nrog kev kawm txog cov txheej txheem kev lag luam, sau cov ntaub ntawv ua haujlwm, nkag siab cov ntaub ntawv ntws, nrhiav cov kev tsis sib haum xeeb thiab hloov kho cov kev daws teeb meem rau kev kov yeej qhov tsis muaj zog ntawm qhov system kom ua tiav cov hom phiaj ntawm lub koom haum
Dab tsi yog qhov qub txeeg qub teg Dab tsi yog qhov sib txawv ntawm qhov qub txeeg qub teg piav nrog piv txwv?
Inheritance yog ib txoj hauv kev kom tau txais cov yam ntxwv thiab kev coj cwj pwm ntawm ib chav kawm los ntawm lwm chav kawm. Cov chav kawm uas cov tswv cuab tau txais qub txeeg qub teg yog hu ua chav kawm hauv paus, thiab chav kawm uas tau txais cov tswv cuab tam sim no hu ua chav derived. Inheritance siv IS-A kev sib raug zoo