Learning Materials Burglar alarm - Issues The home security programme highlights the following issues in domestic design against crime: the challenge of designing an alarm system which people will prime consistently and instinctively, as opposed to one which discourages the user from setting it the tensions in development between a sketch design which defines appearance and a mechanical design which determines the technical workings of the product the importance of colour and finish in terms of making products appeal to the psychology of specific user groups the importance of interpreting patterns of behaviour around a social problem, whether it is the criminal mind targeting homes or the householder reluctant to set a lock. Keywords sales aesthetics business brainstorm crime colour electronics prototype scepticism Many of the above keywords are explained further in Channel 4's jargon-busting A to Z of design terms and design concepts. Click on the Channel 4 logo at the top of the page to visit the site.