In a distributed information network, a method and system for assembling messages in an input set of messages into one or more message assemblies. The method involves constructing an initial directed graph of the set of messages, wherein the directed graph consists of pairs of a first vertex and a second vertex, wherein, for each message in the set of messages, a first vertex is an the out node of the message and the second vertex is the in node of the message. A connectivity matrix is defined on the initial directed graph that is modified in an iterative process. A final directed graph is produced that is partitioned into disjoint subgraphs, each subgraph being an assembly of messages from the input message set.