Using consensus methods for solving conflicts of data in distributed systems

By a data conflict in distributed systems we understand a situation (or a state of the system) in which the system sites generate and store different versions of data which refer to the same matter (problem solution, event scenario etc.). Thus in purpose to solve this problem the management system should determine one proper version for the data. The final data version is called a consensus of given versions. In this paper for given conflict situation we propose to solve a consensus problem by determining a consensus function. We present a consensus model, the postulates for consensus choice functions, their analysis and some numerical example.