IBM BPM, V8.0.1, All platforms > Authoring services in Integration Designer > Get started with IBM Integration Designer > SCA > Service implementation types
Stand-alone references
Stand-alone references are references to applications that are not defined as SCA components (for example, JavaServer Pages or servlets). Stand-alone references permit these applications to interact with Service Component Architecture components.
Stand-alone references have neither an interface nor an implementation because the implementation is outside the scope of the module. A module can contain no stand-alone references or one stand-alone references artifact. When you use stand-alone references, you can use your existing applications together with SCA components.
Stand-alone references can be used in a mediation module.
Related concepts:
Java objects
BPEL process
State machines
Business rules
Selectors
Human tasks
Mediation flows