Functional Requirements for Company’s XXX IS

This work is devoted to the development of the functional requirements for Company’s XXX IS. The first part illustrates the relevance of this issue and provides the objective reasons for this research to be carried out. Initially, the specific case of the organization XXX has to be analyzed to make a decision whether the project of the implementation of the informational system is worth doing and which requirements have to be taken into account at the first place. To make this decision a full range of the company’s business-processes have to be analyzed, starting from the processes of the highest order that are described from the top-manager’s point of view to the specific sequences of actions done by the end-user who is going to work with the system. The first chapter depicts some processes of the higher level of decomposition, showing them as they currently work and analyzing some of the key areas for improvement using IDEF0 model and, additionally, use-case diagram. The use-case diagram shows different types of employees and ways of interaction between them. On the other hand, the first level IFEF0 model defines the basic flows in the organization, the income and the outcome. The second IDEF0 level diagram describes three basic processes: order, sale and warehouse operations. Second chapter provides a short outline of three methodologies for requirement management: RUP, BABOK and Weigers. After that, using the Podinovsky’s method the most relevant and appropriate methodology is chosen, which is Weigers methodology. The third chapter deepens the analysis of the processes in the organization using the sequence diagrams which eventually allows to develop the list of functional requirements. In the conclusion the short summary of the work is presented and the results are discussed.