This diagram shows the high-level workings of a proprietary software development company.

This diagram is a very simplified representation of the real-world workings within a proprietary software development organization. There are obviously many communication paths, touch-points, and cross-functional deliverables that occur that are not shown on this diagram. However it is useful if we view the model this way and compare it with the diagrams of the open source and professional open source models.

The customer is not very involved in the process of creating the software.

Next - The Open Source Model