A method, system and machine accessible medium for establishing connectivity to a remote computer system by using connectivity objects descriptors provided with services and libraries SDAs. A service or in a library SDA provides a description of how to establish a connectivity object for accessing a remote system. When the SDAs are deployed on an application server, all packed descriptions are stored in a repository. The connectivity is established at server startup in accordance with the descriptions and is accessible for all applications, services and libraries while the server is running.