HCD.10:4.7 - Differentiate Apparent Failure before Assigning More Practice
When different explanations would lead to different next Work, ask whether the learner failed to recognize applicability, access the needed response or source, express the result, adapt the Method, enact the action, or operate under the changed support. Apply E.23.CAE when its differential is available and material. Its result informs the HCD decision; it does not choose the practice change.
A missing source, unavailable AI, inaccessible interface, invalid task, excessive load, or changed configuration is not automatically capability loss. Repair the direct condition, return to stable supported practice, change the variant, or select another Method as the evidence warrants. Intensify only when the stronger challenge still addresses the diagnosed practice need.