Video: Dab tsi yog qhov kev ntsuas ntsuas ua haujlwm?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
A kev ntsuas yog ib qho kev txiav txim lossis txoj hauv kev uas siv los tiv thaiv, tiv thaiv lossis txo cov kev hem thawj rau cov khoos phis tawj, servers, networks, operating systems (OS) lossis cov ntaub ntawv xov xwm (IS). Kev ntsuas ntsuas cov cuab yeej muaj xws li anti-virus software thiab firewalls.
Tsis tas li ntawd, peb hom kev tawm tsam yog dab tsi?
Hom Kev Tiv Thaiv . Muaj peb hom ntawm kev ruaj ntseg kev tawm tsam : hi-tech, lo-tech, and no-tech. Cov no peb yuav tsum tau siv ua ke los tsim kom muaj txheej txheem kev ruaj ntseg zoo. Tsis muaj kev ruaj ntseg ib leeg kev ntsuas yog siv tau rau txhua qhov kev hem thawj.
Tsis tas li ntawd, cov hom phiaj ntawm kev tawm tsam yog dab tsi? Peb lub hom phiaj tseem ceeb ntawm txhua qhov kev tiv thaiv kev ruaj ntseg:
- Thaum ua tau, txheeb xyuas thiab tsis kam nkag mus rau cov neeg muaj peev xwm hem.
- Tsis kam nkag mus rau riam phom, explosives thiab tshuaj txaus ntshai rau lub chaw.
Kev tiv thaiv kev ruaj ntseg yog dab tsi?
Hauv computer kev ruaj ntseg a kev ntsuas yog ib qho kev nqis tes ua, khoom siv, txheej txheem, lossis cov txheej txheem uas txo qhov kev hem thawj, qhov tsis zoo, lossis kev tawm tsam los ntawm kev tshem tawm lossis tiv thaiv nws, los ntawm kev txo qhov kev puas tsuaj uas nws tuaj yeem ua rau, lossis los ntawm kev tshawb nrhiav thiab qhia nws kom kho tau. Lub ntsiab lus yog kev ruaj ntseg tswj.
Dab tsi yog qhov ntsuas ntsuas?
A txee - ntsuas yog ib qho kev txiav txim uas koj ua kom tsis muaj zog ntawm lwm qhov kev ua lossis qhov xwm txheej, lossis ua kom tsis muaj mob. Vim tias qhov kev hem thawj tsis tau tsim kho, peb tsis tas yuav tsum muaj qhov tiag kev tawm tsam . Tej zaum koj kuj nyiam.
Pom zoo:
Function Point piav qhia nws qhov tseem ceeb Dab tsi yog kev ua haujlwm taw qhia kev ntsuas?
A Function Point (FP) yog ib chav ntsuas ntsuas los qhia txog tus nqi ntawm kev lag luam kev ua haujlwm, cov ntaub ntawv xov xwm (raws li cov khoom lag luam) muab rau tus neeg siv. FPs ntsuas software loj. Lawv tau txais dav raws li kev lag luam tus qauv rau kev ua haujlwm sizing
Dab tsi yog qhov yuav tsum tau ua rau kev ntsuas kev ua haujlwm?
Lub hauv paus yuav tsum tau ua ua ntej rau kev ntsuas kev ua tau zoo suav nrog kev nkag siab txog daim ntawv thov nyob rau hauv kev sim, txheeb xyuas cov kev xav tau ntawm kev ua haujlwm xws li lub sijhawm teb, qhov qub thiab qhov siab tshaj plaws, cov qauv tsheb sib tw, thiab xav tau lossis xav tau sijhawm
Dab tsi yog qhov sib txawv ntawm qhov ntsuas qhov ntsuas thiab qhov ntsuas thib ob?
Primary index: nyob rau hauv ib tug sequentially order file, qhov Performance index uas nws search key qhia cov sequential order ntawm cov ntaub ntawv. Kuj hu ua clustering index. Secondary index: ib qho Performance index uas nws qhov tseem ceeb tshawb nrhiav qhia qhov kev txiav txim sib txawv ntawm qhov kev txiav txim ntawm cov ntaub ntawv. Kuj hu ua non-clustering index
Dab tsi yog qhov ntsuas qhov ntsuas qhov ntsuas qhov ntsuas?
Xav txog nws li no: rhiab heev yog ib qho kev ntsuas ntawm qhov hloov pauv ntawm lub koob yees duab qhov chaw saib uas tsim nyog raws li qhov muaj peev xwm tshawb pom, thiab qhov pib yog qhov ntau npaum li cas ntawm cov lus tsa suab yuav tsum tshwm sim txhawm rau txhawm rau ua rau lub tswb
Dab tsi yog qhov kev khiav hauj lwm qhov system thiab hais plaub lub luag haujlwm tseem ceeb ntawm kev ua haujlwm?
Ib qho Kev Ua Haujlwm (OS) yog qhov sib txuas ntawm tus neeg siv lub computer thiab lub khoos phis tawj kho vajtse. Lub operating system yog ib qho software uas ua txhua yam haujlwm yooj yim xws li kev tswj cov ntaub ntawv, kev tswj hwm kev nco, kev tswj cov txheej txheem, tuav cov tswv yim thiab tawm, thiab tswj cov khoom siv peripheral xws li disk drives thiab cov tshuab luam ntawv