Abstract: A method and object-oriented computing system in which a Java™ implementation of a service is provided dynamically at runtime via a Java™ interface for the service in accordance with the needs of a client computer in one of two varieties: an Enterprise Java Beans™ (EJB) implementation or, alternatively, a non-EJB implementation. Thus, the same service is accessible, without requiring any programming code changes, to both clients operating in an EJB environment and clients operating in a non-EJB environment. The client accesses the service through two non-EJB interfaces, one for the service (object or bean) itself, and the other for an abstract factory class. Both of these client interfaces are non-EJB to avoid dependence upon client access to EJB packages, which may exist for some clients and not for others.