The rules directory contains the rules generally used to control the mode of operation of an interaction, depending on external factors. Examples of such rules are:
- Business data mapping rules (for adapter connectors)
- Process execution rules and intermediate results
- Autonomic rules (such as priority in a shared environment)
- Security rules
- Capacity and availability rules
The rules directory may or may not exist. If it exists, it can still be left off the Runtime pattern when analysis determines that interaction rules are not an important part of the solution, for example.