Information technology is not only crucial for the success of commercial business, but also an important part of individuals daily activities. There are many technological solutions used to make our life easier. However, not every technological solution is successful. The research into the meaning of success regarding the interactive mobile information systems, benefits both science and industry. This dissertation deals with the improvements to the DeLone and McLean information systems success model and proposes new success dimensions, as well as relationships between these dimensions, in order to explain the success of todays interactive mobile information systems that are used at the individual level (e.g. for entertainment, informationseeking, communication, etc.). The main contributions of this thesis are a valid and reliable measuringinstrument questionnaire, and a valid and reliable multi-dimensional interactive mobile information systems success model. Both developed artefacts are results of the application of the design science methodology and represent valuable toolsthat serve both science and practice. Scientists can use these artefacts as a theoretical basis for similar studies, while providers of interactive mobile information systems can use these artefacts to measure the success of their products, in order to find out which features contribute to the perception of benefits as a result of system use in a greater or lesser degree, to detect whether users have the intention of system reuse, and use this information as a strategy for future system improvements.