Why and when to perform this task
A Web Services Invocation Framework (WSIF) provider is an implementation of a WSDL binding that can run a WSDL operation through a binding-specific protocol.
Providers implement the interface between the WSIF API and the actual implementation of a service. Providers are pluggable within the WSIF framework, and are registered according to the namespace of the WSDL extension that they implement. Some providers use the Java 2 platform, Enterprise Edition (J2EE) programming model to utilize J2EE services. If a provider is available, but its required class libraries are not, then the provider is disabled.
WebSphere Application Server includes the following WSIF providers: