Interfaces and their role

In a large project with multiple systems, it seems obvious that interfaces are important. Nevertheless, in one particular project, the interface group was not involved during the designs. In this situation, I would expect extra time to let the interface group catch up. But instead, the time to deliver about 150 interfaces was reduced by 45%. It raised a number of concerns. The process designs had implicit assumptions about what information they expect to flow through the interfaces. But these assumptions are difficult to pinpoint and document.

The project used Tibco as its middleware. It starts integration testing and things will get interesting!