The thesis presents high availability information system of the Agency of the Republic of Slovenia for Agricultural Markets and Rural Development. With a user survey the quality of information services of the Agency was checked and detailed analysis of the high availability of the information system of the Agency was checked as result analysis suggestions were given for improvements.
At the beginning the availability of information system that represents the availability of desired services and the availability of the desired information is presented. More information is presented for the measurement and calculation of the availability of serial, parallel and complex systems. Basic concepts of high availability are introduced and covered by design principles.
Functions of cloud computing, cloud service models, and cloud models in use are described. The procedures used for system integration in cloud structures are presented.
In the central part, the information system of the Agency is described with the support functions of business processes. We performed a survey of customer satisfaction with the use of web services and user opinion on the support for web services in business processes of the Agency. History and development of the information system with preparations for the transition to the new high-availability technologies are described. A comparison of different systems of technologies based on standard performance tests is presented. The availability of the information system was compared between the calculated and measured values of the availability.
In addition, a detailed analysis of the information system using the concepts of high availability is described. The results of the analysis are the proposed improvements to the information system in order to achieve better availability. The work includes the steps for the integration of information system in a private cloud with the analysis of the integration.