This volume contains the proceedings of the 24th IFIP TC 6/WG 6.1 Inter- tionalConference onFormalTechniquesfor Networkedand Distributed Systems (FORTE 2004), held in Madrid, Spain, September 27 30,2004.FORTE denotes a series of international working conferences on formal description techniques applied to computer networks and distributed systems. The conference series started in 1981 under the name PSTV. In 1988 a second series under the name FORTE was set up. Both series were united to FORTE/PSTV in 1996. Three years ago the conference name was changed to its current form. The last ?ve...