In 1998, Kent Beck designed the first unit testing framework that could be used to provide common elements necessary for building and running automated unit tests.
For three decades, Basis has been the discipline of keeping the lights on: monitoring system performance, applying patches, managing transports, and responding to the inevitable 2 a.m. page when a production instance falls over.
Behavioral patterns concentrate on interaction by showing how objects exchange information, distribute tasks, and execute sophisticated logic as part of a unified operation.
Two of the most consequential integration decisions in an SAP project are made before a single flow is configured: which pattern to use, and whether that pattern is even available in the target environment. The second question is the one most often skipped.