The efficiency of distributed information systems (DIS) to a large extent depends on a complex applied means working and test diagnostics. Especially rice for the cause of this complex and its components property of distribution, autonomy, goal formation, cooperation, possible mobility complicated legacy dynamic nature of their changes. The combined presence of these properties are natural for multi-agent systems (MAS) for different purposes. This paper presents a conceptual model of a two-level MAC behavioral diagnosis, based on the model of control experiments in the network of automatic models of DIS different hybrid type reactive work and deliberative test components of agents combine deterministic and evolutionary methods for the synthesis of decomposition behavioral tests. Model MAS is designed to determine the conditions of distributed behavioral working and test diagnose of DIS. Implementing MAC is a block diagram of deterministic and evolutionary test generators, the procedures of their overall functioning.