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Why Messaging in Clinical Kiosks Needs a Protocol Layer, Not Just a Chat UI

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A software developer built a centralized coordination layer called BidirectionalMessagingService to manage patient-staff messaging on clinic kiosks, rather than handling message logic at the screen level. The system assigns a single authority over the full message lifecycle, including creation, delivery, acknowledgements, read receipts, and fallbacks. Messages carry a small, fixed set of statuses — sent, delivered, read, and failed — to ensure consistent meaning across all clients and channels. Delivery options such as SMS fallback, urgency level, and confirmation requirements are treated as configurable policy rather than hardcoded behavior. The approach aims to close audit gaps and eliminate conflicting message states that can arise when multiple clients independently interpret delivery events.

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Why Messaging in Clinical Kiosks Needs a Protocol Layer, Not Just a Chat UI · ShortSingh