A conceptual model is a visual representation of a system. It consists of concepts used to help people know, or simulate, and understand a subject the model represents. A conceptual model is a representation of a system that employs concepts and ideas for representation. Conceptual modeling is used in many fields including sciences, socioeconomics and especially software development using Unified modeling language. This conceptual model is using the symbols and rules of UML. EdrawMax has extensive library of all UML symbols that help you to create all types of UML drawings without any problem.