Inethiwekhi yedatha Model

Imodeli idatha inethiwekhi ubuyisela phezulu elula kakhudlwana futhi ecacile. Enkabeni yalo, imodeli inethiwekhi kuyafana sabaphathi, libuye libe izingxenye, ukuthi iyona element impande lapho kugcinwa imininingwane ebaluleke kakhulu. Phakathi ISIZINDA kuhlanganiswe ngokusebenzisa ukuxhumana. Futhi ISIZINDA sise elifanayo ukusuka root node ukwakha, njengasezulwini imodeli ephethwe yisigungu sesonto, amazinga. I engavamile we imodeli phezulu kwaba ukuthi komunye isici kwesinye kungaba indlela eyodwa, futhi inethiwekhi akunjalo, kukhona imizila eziningana. Imodeli idatha inethiwekhi inikeza ithuba ukwakha ngaphezulu izakhiwo eyinkimbinkimbi idatha. Lokhu umehluko oyinhloko kula onobuhle ababili.

Ukuze udale imodeli idatha okwakubhaliwe, kwaba ukuqaphela of ubudlelwano "abaningi abaningi" nge ukulungiswa ngesikhathi esisodwa amaphutha ezikhona e imodeli phezulu, okuyinto sezihlonziwe ngokuhamba kwesikhathi. Imodeli kuhleloxhumano lwedatha kusekelwe ukusetshenziswa igrafu theory. Kule umbono, it ihambelana i igrafu ezingafanele. Kulesi imodeli, ozalweni ngamunye ungaba iyiphi inombolo yokhokho. Senethiwekhi yeselula siqukethe iqoqo amarekhodi, wathi isethi ubudlelwano okukhona phakathi amarekhodi idatha. Izinhlobo ezimbili amarekhodi, yileyo amadlozi ozalweni, ukucacisa izinhlobo ukuxhumana. uhlobo zokuxhumana Ngokwesibonelo ngokuvamile limelela eyodwa senzakalo ukhokho ukuqopha ne iinthombe isethi ngaphambilini lwezinto okuqondene ingane ukungena uhlobo. Ngaphansi iqoqo elivame ukuqondwa ngayo njengoba isethi okuthiwa kwamarekhodi, lapho irekhodi elilodwa uhlobo limenyezelwe umnikazi we isethi, kanye namanye amarekhodi - lokhu iqoqo amalungu.

Imodeli idatha inethiwekhi ezinye izici. Zonke izinhlobo ukuxhumana esetshenziswa kumelwe nakanjani babe functional, okungukuthi "abaningi komunye", "okukodwa-isixuku" noma "omunye komunye". Imodeli kukhawulwe ngaphakathi uzwakalise egomela ukuthi kulolu hlobo ngokuqondene uhlobo oluthile irekhodi amadlozi ayeyinzalo ka uhlobo ukuqopha izimo ngempela ezithile ziyafezwa. Ukuze ukwazi ukubona ubudlelwane "abaningi abaningi", ngohlobo olukhethekile amarekhodi iye kwetfulwa, kanye pair of obusebenzayo isixhumanisi efomini "omunye sebuningini" futhi "abaningi nobuso." Uma kudingekile, ulwazi olwengeziwe kungenziwa esenezela ukuqopha, enza indima nemisipha.

Ubuhlobo iqembu imodeli inethiwekhi ngokuvamile ukuchaza uhlobo "okukodwa-isethi" Ubuhlobo, okungukuthi, umnikazi wenye, kodwa has a lot of abangaphansi. Omunye kungaba zilandise njengesibonelo nalesi simo ngokuthi "umsebenzi." Lapha kusho ukuthi isisebenzi ngasinye isebenza kunoma isiphi emnyangweni othile, kodwa yonke iminyango kungasebenza kahle a abasebenzi ambalwa. Inethiwekhi imodeli uhlobo "omunye sebuningini" ubudlelwano phakathi nezinhlangano ezihlukahlukene luyasetshenziswa esebenzisa ubudlelwane iqembu.

Imodeli inethiwekhi semininingwane kuhilela ukusetshenziswa imisebenzi elandelayo ku idatha:

- Khumbula, kufanele ufake ulwazi database yethu;

- ukufaka sengqondo iqembu, obekwe phakathi kwalezi zokuxhumana ethize;

- switch, okungukuthi ukwenza ukushintshela komunye iqoqo ilungu kunoma iyiphi enye umnikazi;

- buyekeza, okungukuthi, ukwenza noma yikuphi ukuguqulwa idatha;

- akhiphe okungukuthi, ukuze afeze imisebenzi ukufunda idatha;

- ukususa, okungukuthi, ukwenza ukususwa okunengqondo noma ngokomzimba idatha;

- siqambe irekhodi of ubudlelwano iqembu, okungukuthi, ukuba bafeze breaking ngokwamanga ukuhlobana phakathi idatha.

Ku-imodeli ezifana idatha inezici esikhethekile idatha zokukhwabanisa kanye navigation phakathi kwabo. Iyunithi navigation e imodeli igrafu ukusungulwa amarekhodi lapho ofuna ukusisebenzisa kwenye zokukhwabanisa idatha. La marekhodi ngokuvamile kuthiwa zamanje. Imodeli inethiwekhi kungase kube khona kusukela inguquko yamanje Ngokwesibonelo esilandelayo engeyokuqala wamanje kwesinye ngokungenasizathu vertex Isixhumanisi samanje okwakubekelwa ezalethwa ubuhlobo iqembu. Navigation kungenzeka ziqale ngokurekhoda ezingafanele.