Static DSMs represent systems where all of the elements exist simultaneously, such as components of a machine or groups in an organization. A static DSM is equivalent to an "N2" chart or an adjacency matrix. The marking in the off-diagonal cells is often largely symmetrical to the diagonal (e.g., in an organizational DSM indicating interactions between teams, there are both a mark from team C to team E and a mark from team E to team C, thus indicating that interactions are mutual). Static DSMs are usually analyzed with clustering algorithms.