Modeling the Expropriation Procedures using UML – The case of Greece

The subject of the present paper titled "Modeling the Expropriation Procedures using UML" is the modeling of the processes which occur during a Land Expropriation. These processes concern the spatial transactions that are carried out in the real properties located in the study area, the administrative decisions and the changes in the real rights. The base for the development of the model is the techniques of object ­ oriented designing and specifically the use of a common language of modeling, known as Unified Modeling Language (UML). In the particular study, the processes that are executed during the implementation of an Expropriation Act in Greece are described as well as the way of regulation of real rights and the way that spatial transactions are realized. Firstly, the steps that are followed in Expropriation are reported and also the main parties involved in the act are described. Continuing, the modeling of the processes in a Land Expropriation was carried out using the Unified Modeling Language (UML). The diagrams that are being selected in order to model the processes in an Expropriation are the activity diagram and the use case diagram of the Unified Modelling Language. The activity diagram represents the activities that are realized and the operations that should be executed within a system in Greece and the use case diagram represents the interaction between the different actors and the system. Finally, the conclusions which resulted from modeling the processes of the Expropriation Act are formulated.