Επιτυχία και αποτυχία έργων πληροφοριακών συστημάτων
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Subject
Διαχείριση κινδύνου -- Πληροφοριακά συστήματα ; Πληροφοριακά συστήματα -- Μέτρα ασφαλείας ; Δημόσια διοίκηση -- ΠληροφορικήAbstract
Ιnformation systems have major importance for modern organizations who use them to manage their daily transactions, monitor the progress of the implementation of their goals and communicate with their external environment. The implementation of information systems in the military, business and educational level is either imposed by international, european and national regulations, or essential because of the digitization of information, which is, along with the organizational knowledge base, a critical production factor. The introduction of information systems in an organization requires the knowledge of change management. There are no uniform implementation processes of introduction of information systems, since despite the commonality between organizations, each organization is a separate entity, the purposes they serve and the means they use are different in each case. So besides the common features should have information systems for communicating, interoperability and compatibility, their development cycle is determined by certain steps intended for succeeding their purposes. The very large number of failures of projects of information systems and the impact of these failures on a wide range of economic and social activities, make absolutely necessary that these projects are based on the recognition of specific requirements where appropriate, management of change and risk management, setting a specific framework to address problems anticipated. Particularly, in the case of public organizations, which manage significant investment capital, it is necessary to specialize in detail the general functional requirements and requirements of their use, reliability, performance, supportability, expected problems during the development of the information system and the strategies for handling risks. Ιn this thesis is presented a review of literature on information systems, the life cycle of information systems development projects, their usefulness to organizations, potential opportunities and risks of the development process of information systems for an organization and strategies to facilitate their treatment. Then three projects of information systems, designed for the General Secretariat for Research and Technology are used in order to test the validity of literature principles in relation with failure or success of these systems, towards a new holistic approach to information systems projects development, which can facilitate their introduction to organisations without the shortcomings of fragmented efforts leading to failures.