Further expanding the process operations into individual process actions is possible but provides a level of complexity that may not be required for sufficient database design, as the main purpose of the process model is to identify the most appropriate object classification to store attributes. For example, a "sonication" node might be expanded to process actions such as "set sonication time" or "set sonication intensity", but this information can be just as easily represented by storing the attributes "sonication time" and "sonication intensity" in the parent process operation node (Figure ). However, it should be noted that this next level of process expansion may be useful for relating data commands or readings to computer-integrated or fully automated instrumentation. In either case, all the raw parameters, data, and metadata information are stored in the nodes at the lowest process level.