Context is sometimes used synonymously with environment. In UX design we are often referring to the intersection of personal, physical and social context. To which we may add technical context. With these categories we hope to capture situated and conditional snapshots of human settings. For example if we are interested in how people listen to music while running we would set out to understand which people we are interested in, where they are running to and from, how long they run for, what is around them while running in terms of space, light, other people, clothing, audio technologies, human senses, cities, non human organisms and surfaces. In other words we seek to build a holistic picture of what is going on. This will result in what Clifford Geertz calls ‘thick description’ including voices, images, smells, sounds, textures that then falls to the designer to synthesise. In UX design we are often dealing with complex socio technical systems in which contextual understanding can have a profound effect on decision making.