Unit 5QuestionDescribe the validation processes used throughout an object-oriented design process. Reason theplacement of each validation step in the process and what is the purpose of each validation?AnswerAfter creating a conceptual model in Object-Oriented Analysis (OOA), we then use the conceptual modelto develop the solution in Object-Oriented Design (OOD) by mapping the analysis model ontoimplementation classes. The validation processes used in OOD involves:1.Firstly, we need toexamine the problem domain(class/objects defined in analysis) and assignthem with one of the four components of object-oriented systems (human, hardware, software,or data). The reason for doing this is to group objects into classes such as external system class,user-interface class, etc. so that we can identify relationships that support functionalrequirements.2.The second step is todevelop time event diagrams. This is a series of sequential or concurrent