A model that represents a system by another system that already exists in the real world; for example, a model that uses one body of water to represent another. [DIS; IEEE]
Yimodeli emele inkqubo ngenye inkqubo esele ikhona kwihlabathi lokwenene; umzekelo, imodeli esebenzisa amanzi athile ukumela enye. [DIS; IEEE]