Résumé
The first polynomial time algorithm (O(n^4)) for modular decomposition appeared in 1972 and since then there have been incremental improvements, eventually resulting in linear-time algorithms. Although having optimal time complexity these algorithms are quite complicated and difficult to implement. In this paper we present an easily implementable linear-time algorithm for modular decomposition. This algorithm uses the notion of factorizing permutation and a new data-structure, the Ordered Chain Partitions.