A General Purpose Software System for Linear Optimization and Decision Support “optima-plus”

The paper presents a general purpose software system for optimization and decision support, called Optima-Plus. It consists of two independent parts LIOP-1 system and MKO-2.1 system. Optima-Plus system is designed to support the decision maker (DM) in modeling and solving different problems of linear and linear integer single-criterion and multicriteria optimization. The system implements three methods for single-criterion optimization, as well as an innovative generalized interactive method for multicriteria optimization with variable scalarization and parameterization, which can apply most of the well-known scalarizing problems and is applicable for different ways of defining preferences by the DM. The class of the problems solved, the system structure, the implemented methods and the graphical user interface of the system are discussed in the paper. Optima-Plus system can be used for education, research and for solving a great variety of real-life problems.