There are lots of ways in which a pipeline can be tested such as using a BizTalk Pipeline Framework to set up unit testing of the pipeline, using Pipeline.exe tool, or by creating and using them in real time BizTalk Messaging scenarios. The problem with these approaches is that users are forced to perform testing using third-party tools or tedious methods to test the pipelines in a BizTalk server environment. With the "Test Pipeline Component" functionality in BizTalk NoS Ultimate add-in, you can debug the pipeline component by attaching an external process right from the visual studio environment.