Corporate-, Agile- and Open Source Software Development: A Witch's Brew or An Elixir of Life?

The observation that the Open Source Software development style is becoming part of corporate software development, raises questions about its compatibility with traditional development processes. Particular compatibility questions arise where the existing corporate development style is in the agile tradition. These questions are identified and discussed. Measures that can be taken to avoid clashes are suggested. An example illustrates how Corporate-, Agile- and Open Source Software could intersect, and SPEM modelling is employed to show how corporate processes would need to adapt to accommodate the new scenario.