monacemTa bazebis struqturireba da proeqtireba - Unicef.ge
monacemTa bazebis struqturireba da proeqtireba - Unicef.ge
monacemTa bazebis struqturireba da proeqtireba - Unicef.ge
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studenti<br />
a. arsi atributis gareSe<br />
studenti<br />
studentis nomeri<br />
gvari<br />
saxeli<br />
misamarTi<br />
<strong>da</strong>badebis TariRi<br />
b. arsi atributebiT<br />
studenti<br />
studentis nomeri<br />
g. arsi pirveladi gasaRebis miTiTebiT<br />
nax. 9. arsis gamosaxvis variantebi IDEF1X stan<strong>da</strong>rtSi.<br />
mikuTvnebis araidentificirebadi kavSirebi<br />
mikuTvnebis araidentificirebadi kavSirebi (non-identifying connection<br />
relationships) – es aris 1:1 <strong>da</strong> 1:N tipis kavSiri or identifikatorulad<strong>da</strong>moukidebel<br />
arsebs Soris. mikuTvnebis kavSiri (connection relationship) – es igivea<br />
rac “aqvs” tipis kavSiri “arsi-kavSiri” gafarToebul modelSi.<br />
am stan<strong>da</strong>rtis Sesabamisad, araidentificirebadi kavSirebi gamoisaxeba<br />
wyvetili xazebiT. gar<strong>da</strong> amisa, mikuTvnebis kavSiri IDEF1X –Si yovelTvis<br />
ixateba mimarTulebiT “warmomSobi<strong>da</strong>n” “STamomavlisken” (cxr.3). 1:N kavSiris<br />
SemTxvevaSi warmomSobs warmoad<strong>ge</strong>ns 1-is mxares mdgomi arsi. “STamomavlis”<br />
mxares wyvetili xazis bolos ganaTavseben Seferadebul wres. gaCumebis<br />
principiT araidentificerebad kavSirs gaaCnia kardinaloba “erTi bevrTan”<br />
aucilebeli “warmomSobiT” (minimaluri kardinaluri ricxvi tolia 1-is) <strong>da</strong><br />
araaucilebeli “STamomavliT” (minimaluri kardinaluri ricxvi tolia 0-is).<br />
aseTi kavSiri gamoisaxeba wyvetili xaziT “STamomavlis” mxares Seferadebuli<br />
wriT raime miTiTebebis gareSe. magram gvxvdeba SemTxveva, rodesac kavSiris<br />
kardinaloba gansxvavdeba gaCumebis principiT gansazRvrulisagan, am<br />
SemTxvevaSi gamoiyeneba <strong>da</strong>matebiTi aRniSvnebi. Tu “STamomavlis” arseboba<br />
aucilebelia wris gverdiT xazis Sesabamis mxares ganaTavseben P (Positive)<br />
3
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