For case management, Pega's capabilities are unmatched. No other tool has what Pega offers. While Appian might not even have cases (unsure about the latest version), their processes are based on flows. Pega, on the other hand, manages cases with different stages, steps, and flows within each stage. This allows for creating reusable and modular flows at the tool level, unlike building large flows like in Appian. Additionally, Pega offers a clear parent-child case relationship that's easily created and maintained. Dependencies can be configured, where reaching a specific stage in a parent case automatically triggers a child task in a child case, while the parent case remains on hold until a certain condition is met before moving forward. This configuration allows multiple users to work on cases in parallel. Many of these settings are readily available within Pega case settings. Overall, Pega's case management is unparalleled compared to other options like Power Apps, which lack any case-related functionalities due to their different focus.