IBM® ILOG® Concert Technology offers classes for you to design a model of your problem. You can then invoke an algorithm to extract information from your model to solve the problem. In this context, an algorithm is an instance of a class such as IloCplex, documented in the CPLEX Reference Manual, or IloCP, documented in the CP Optimizer Reference Manual.

For details about what each algorithm extracts from a model, see the reference manual documenting that algorithm. For example, the CPLEX Reference Manual lists which classes of Concert Technology are extracted by an instance of IloCplex. In general terms, an instance of IloCplex extracts a model as rows and columns, where the columns indicate decision variables of the model. Also in general terms, an instance of IloCP extracts an instance of a class whose name begins Ilo to a corresponding instance of a class whose name begins Ilc. For example, an instance of IloAllDiff is extracted by IloCP as an instance of IlcAllDiff.