IJobLogger
XmlDatasetManager
DataSet Table and Column Names
These are specialty classes that should only be used within the integration workflow in objects like preprocessors, integration processors, and postprocessors.
## Integration
IUnitOfWork
ISiteContext
IAuthenticationService
ICookieManager
These classes can be used most places in the application, but are also used in Handlers and Pipes.
## Handlers and pipes
DateTimeProvider
MessageProvider
These classes can be used in most places in the application where server-side extensions are used.