Use case modelling: user goal technique You have been asked to carry out use case modelling to identify the functional requirements for a new dive computer to be worn on the wrist, similar to those produced by Aqua Lung, Suunto or Cressl. These are used by recreational and professional scuba divers and free divers, and allow the user to receive dive data during and after a dive. The watch is to connect with an app that will provide a variety of additional features as well as those on the watch itself. Use the user goal technique to identify all the use cases that would be relevant to user of the watch. Use your own experience, or that of a diver of your acquaintance, together with any research you need to do. (a) Draw a use case diagram representing the same information.