Patient engagement within healthcare information technology is undergoing a structural transformation. First-generation digital front doors, characterised by rigid, rule-based chatbots and linear Interactive Voice Response (IVR) systems, are rapidly giving way to intelligent, agentic communication platforms. Driven by advancements in Natural Language Processing (NLP), Large Language Model (LLM) constellations and deep integration with Electronic Health Record (EHR) environmen

The rise and subsequent decline of IBM Watson Health represents a seminal case study in the intersection of legacy industrial computing, the aggressive financialization of medical data, and the premature deployment of narrow artificial intelligence in high-stakes clinical environments. Once heralded as the panacea for the complexities of modern oncology, Watson Health was positioned by IBM leadership as a "moonshot" capable of democratizing elite medical expertise through the