One of the simplest and most useful user-facing functional structures for software, the Submit-Respond-Observe pattern often masquerades under different names. It’s ubiquitous and often hidden under layers of gold-plating, aesthetic frippery, and scaling (read: corporate/enterprise) features. Sometimes it’s camouflaged by useful, yet showier, features. It’s also susceptible to unimaginative user experience and user interface design. Let’s dive in.