indleko ye-sitiringi
Imirhawu yokucinga amaphesenti ayinhloko esistemin yesandwa yokutransmita amandla, ibandakanya izinto ezinhlobene nokugcinwa kwezindleko. Iskejula yokucinga ngokuvumelana neqembu lokusebenza, ubukhona bendawo, amadijithi okubhola, nezimo ezithile. Amasistemi amathathu aphethwe ngokuphezulu, okudingekayo ukuguqula ubunzima obukhathaliye ku-ubunzima obulayishwa, abhola ngokuphezulu okubhola okuphezulu okuhlinza ukuthi kuhlanganise futhi kusebenze ngokuphezulu. Izindleko zihlukahluka ngokubangena kwezinto ezifanayo, oku kuthiwa ngaphansi kwezindleko ezijwayelekile kanye nezindleko eziphezulu zasezifokweni, noma kwezifokwana ezithile. Amaphesenti amathile, ukubhola kwezinto, nezinhlobo zezibhola zasebenza futhi kuhlinza indlela yokugcinwa kwezindleko. Amasistemi aphethwe ngokuphezulu ahlukene nezinto ezifanayo, njengokuthi kubhola okuphezulu, ukukhanya okuphezulu, nezicuku ezithile, konke oku kuhlinza iskejula sokucinga. Iindlela zokusebenza, izisitimela zokubhola, nezinhlelo zokuzimisa zasebenza ngokukhona kulezi zinto, kuyindlela yokuba izindleko ziyinhloko yokuplanisa nekuthenga. Isedwa inikeza amakhetho amaningi, kusuka kuzindleko ezifanele ukusebenzela kwezindleko ezincane kuya kuzindleko eziphezulu ezifanele ukusebenzela kwezindleko ezinkulu, nezindleko eziyindlela yokuhlonisa izimo nezimo zokusebenza zalo noma yiliphi isihloko.