In addition to current architecture levels (deliberative, executive and reactive), a new level is emerging due to recent advances in temporal patterns discovery. This new architecture level, the preventative level, prepares the whole system for predicted problems with the purpose of reducing potential risks. The performance of execution tasks, as well as deliberative plans, may be improved by providing autonomous systems with event prediction facilities. Thus, an autonomous system would prepare some preventative or preparatory actions to enable recoveries in the future. This paper summarizes the main functions of this four-level architecture and presents a testing procedure in the field of virtual robotics.