Allow me to provide some context. At the conference, there was an emerging consensus among the few of us that helped develop the BPSim spec for simulating BPMN that case management presents some challenges in hope to analyze it for improvement, which is at the heart of BPM's BPR/BPI aspirations.
1) Case management is a more declarative than procedural set of things, so concepts needed for something like simulation are difficult to see. While some things in CMMN, for example, could be parameterized (like tasks, with things like durations, costs, resources, etc.; or like events with things like intertriggers, probabilities, etc.), the largely unstructured nature of case management makes for a type of unpredictability that makes discrete simulation somewhat problematic. A BPMN model allows for an A PRIORI approach to analysis by predefining all possible paths, but a CMMN model doesn't predefine all possible paths and so is more cleanly addressable by an A POSTERORI approach to analysis. (This is not to say we have given up on making CM simulatable, but the way forward looks murky.)
2) For traditional BPM, processes have bee addressable thru BPMN, and the BPR/BPI orientation and other applicable business objectives have generally emphasized EFFICIENCY over EFFECTIVENESS, while case management situations would appear to reverse that bias, emphasizing EFFECTIVENESS over EFFECIENCY. This makes the focus on the outcomes of the case management sequences. (Interestingly, efficiency KPIs might back door their way in here by being framed as an outcome or outcome attribute.)
3) Case Mangement audit data was revealed at the conference to be very similar to process mining data, so mining tools that support performance analysis of the mined data may find a powerful use case in providing analytics to CM technologies. [[At BPM, Inc. (bpm.com) are working on a writeup of case management that will explore this concept, which we uncovered some months ago, in greater depth!]]
Our recent conference clearly revealed case management to be an under-served topic, and the conceptual challenges are still being worked thru (while the technology vendors move on and test these waters). Thank you Peter, for launching this thread so that more of this topic can air out amongst our various communities!