The present invention is a system and computer-implemented method for automatically enrolling and upgrading a buyer into a pre-existing network in order to conduct business with one or more sellers with minimum efforts and consistent quality. The method includes providing to the buyer, via a programmable computer, multiple business models for selection. The method also includes retrieving and sending to the buyer a set of pre-configured business processes to select based on the model chosen by the buyer. The method further includes generating required test cases to validate the selected best business process and tracking and certifying the test cases followed by deploying a live version of the selected best business process.