Inter-organisational applications require improved support from middleware services. This paper analyses the management requirements of multidomain applications, covering both technological domains and organisations (administrative business domains). The analysis leads to a suggested middleware solution for these needs, presenting a group of cooperative, pervasive management services that mmon, abstract management language suitable for expressing platform-independent model of cooperation between sovereign components and contracts about selected technologies. The approach is compatible with OMG MDA (Model Driven Architecture) work.