The practice of ECDL testing system analysis in the Intitute of Information Technologies is presented in this work. By analyzing modelling methods, LAP (Language/Action Perspectyve) was chosen for the system analysis. The main feature of Language/Action method is process loop, i.e. beginning of process is linked to process ending or emerged problem is linked to solution results. By analyzing the system using another methods, information flows are optimized according to chosen criteria, however these methods doesn’t take into account user convenience. In Language/Action method every communication is treated as four phases loop: preparation, negotiation, performance, acceptance. Every phase can be divided into smaller phases, which in turn can be treated as independent communication loops. After system modelling using LAP method, some workflows where decided to improve.