Hi!

I am having problem in writing model binding, currently in my model I only have 2 bindings like below are:

Link1(point,point, truck):x,f;

Link2(point,point):dis,ta;,

However, to the binding, it must be written as another link as:

Z1 = sum (j in point, k in truck) is Link(point,truck)

But this association is not related to parameters or variables in the model.

So how do I write it? Can you help me?