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Ma Database Management Systems & DBMSs


Gawo 1 la 2

Zambiri

SOURCE: Claudio VENTURINI

MUTU : Mapangidwe ndi Kukula kwa Nyumba yosungirako deta m'malo ogwirizana

Wolankhula: Dr. Andrea MAURINO

Woyang'anira: Dr. Angelo SIRONI

Zigawo za thesis ya digiri ya Claudio Venturini yoperekedwa kwa Stefano Fantin yolembedwa ndi Andrea Maurino, pulofesa wa payunivesite ya University of Studies, amaperekedwa kuti adziwe zambiri. Milan Bicocca, ngati chida chowerengera ndi zolemba.

Kugwirizana: zovuta za IT

Muzochitika zogwirira ntchito pali mabungwe awiri kapena kuposerapo omwe amagwira ntchito mumpikisano wamsika mkati mwa msika wina, ndipo komabe amafunika kugwirizana pazinthu zina zamalonda. Zifukwa zimatha kukhala zosiyanasiyana ndipo zakhala zikukangana kwambiri ndi kafukufuku wokhudza zachuma, kasamalidwe ka bungwe komanso kasamalidwe ka chidziwitso.

Kawirikawiri, mgwirizano wa mgwirizano pakati pa ochita masewera osiyanasiyana ukhoza kukhazikitsidwa ndi chifuniro cha omwe atenga nawo mbali pawokha, kapena kuperekedwa ndi anthu ena. Pachiyambi choyamba, ochita masewerawa amazindikira mogwirizana ndi mwayi wopeza phindu lofanana, lomwe palibe aliyense wa iwo amene angalandire mumpikisano wokhawokha. Chitsanzo ndi kusinthana kwa chidziwitso ndi cholinga chokweza zinthu kapena ntchito zomwe zimaperekedwa makasitomala. Komabe, muzochitika zachiwiri, zochitikazo zimaganizira munthu wachitatu, yemwe ali ndi mphamvu zokakamiza kapena kulimbikitsa kusinthana kwa chidziwitso pakati pa ophunzirawo. Chochitika chodziwika bwino ndi chakuti mabungwe ena amakakamizidwa ndi lamulo kuti achite nawo mgwirizano.

Kuchokera pamalingaliro a IT, mgwirizano umadziwika kuti ochita nawo masewerawa ayenera kusinthanitsa zidziwitso, popanda ngakhale kugwirizanitsa machitidwe awo a chidziwitso. Kusinthana kwa chidziwitsoku kuyenera kuyendetsedwa bwino, chifukwa mgwirizano ukhoza kukhala wopindulitsa ngati gawo la mgwirizano wa chiyanjano limapereka phindu kwa onse omwe akutenga nawo mbali, choncho samapanga mpikisano kwa wosewera payekha. Mavuto ofunikira kwambiri pakupanga pulogalamu yamapulogalamu omwe amaphatikiza izi m'malo ogwirira ntchito ndi awa:

Kuzindikiritsa zambiri zomwe ziyenera kugawidwa Kumvetsetsa zomwe zikuyenera kusinthidwa ndikuphatikizidwa, kuti zikhale zothandiza kwa mabungwe onse okhudzidwa.

Njira zophatikizira zimasankha njira zoyenera zogwirira ntchito zophatikizira, potsata ndondomeko yomwe iyenera kutsatiridwa komanso momwe mungagwiritsire ntchito zomangamanga ndi machitidwe. Derali limaphatikizaponso mavuto okhudzana ndi kuthetsa kusagwirizana kwa semantic pakati pa chidziwitso chochokera ku mabungwe osiyanasiyana.

Scalability kuchuluka kwa mabungwe omwe akukhudzidwa ndi mgwirizanowu akhoza kukhala mwadongosolo lambiri, ndipo amasiyana pakapita nthawi: chifukwa chake ndikofunikira kuti zomangamanga zikhale zokwanira kuti zigwirizane nazo. dati akhoza kuphatikizidwa mu dongosolo ndi kuphweka wachibale.

Kusinthasintha kusakanikirana kwa machitidwe osiyanasiyana a chidziwitso kumawonjezera mwayi woti osachepera mmodzi wa iwo adzasintha pakapita nthawi. Kuthekera kumeneku ndikwapamwamba kuposa momwe machitidwe ophatikizika amadziwitso alili, ndipo amayimira vuto kuposa zonse pomwe kuchuluka kwa chidziwitso chogawana ndi chambiri. Choncho dongosololi liyenera kuchitapo kanthu mwamsanga kusintha kwa machitidwe osiyanasiyana ophatikizika a chidziwitso.

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