on the relevant relational model between codcr and bod 5相關(guān)關(guān)系模型的探討
an object-oriented knowledge representation based on relational model 基于關(guān)系模型的面向?qū)ο笾R(shí)表示
knowledge representation; relational model; intelligent tutor system; its 知識(shí)表示關(guān)系模式智能導(dǎo)師系統(tǒng)its
compared with the hierarchical model, the relational model is quite complicated 與層次模型相比,關(guān)系模型相當(dāng)復(fù)雜。
efficient object-oriented system realized by combining object-oriented model and relational model 對(duì)象模型與關(guān)系模型結(jié)合實(shí)現(xiàn)高效的對(duì)象系統(tǒng)