Currently the developer specifies the type of transaction that the service and any lifecycle callbacks expect to participate in. For example, via @WSBA or @RESTJDI class level annotation. However, the participation requirements for these protocols is very similar. It would be better if the developer could simply specify that the service can participate in any forward compensation style transaction (such as REST-JDI or WS-BA) using a @BA annotation. The type of transaction is determined by the inflowed TX context.