As you can see, proactive agents perform almost all service tasks in such DCS [13]. We proposed to
implement each agent on basis of real executive CNs (ECN on the figure 1). Agents dispatch the process of
solving user tasks in DCS. In order to solve coherent tasks they need to create unique communities to solve all
such tasks [5]. The target of the community is to solve incoming user task during a time, specified by user. Set
of the CNs in community have to vary if parameters of CNs in this community change. The system may
experience failures of CNs, variation of CNs computing power, reducing of bandwidth, and all that can cause
increasing of the task solution time. In case of all this situations community of agents have to change its
composition in order to solve the task in time, specified by user