Service oriented architectures Informal definition viewing enterprise solutions as federations of services connected via well-specified contracts that define their service interfaces Most notable example Web Services-when the services are distributed across multiple machines and connected by the Internet. Tian Zhang at Nanjing Univ. 5Tian Zhang at Nanjing Univ. 5 Service oriented architectures „ Informal definition ‰ viewing enterprise solutions as federations of services connected via well-specified contracts that define their service interfaces „ Most notable example ‰ Web Services – when the services are distributed across multiple machines and connected by the Internet