The main focus of thesis are two information systems in the company and their overall analysis. These key systems are Orsoft information system and Oracle system. An important objective is the economic information systems to assess, describe and compare their use in accounting, the advantages and disadvantages, to propose any improvement of the economic information systems. The prime objective is an assessment of these two information systems and their proposals for possible improvements. The company Fezko Thierry first used 13 years of information system Orsoft. Then it was decided to implement Oracle system. One of these information systems will be described more in depth, the different accounting modules, the use of, any improvement of this system and the work of this information system. The operational objective of work is the development of economic systems, accounting modules and a description of the implementation of the Oracle accounting system to the company. After experience with both systems, it was found that the system is reliable Orsoft. Workers are also of the opinion that it is better to work with reliable data in the system Orsoft than working with many and many dates in Oracle.