title: Need to provide a proposed model solution, which UML diagrams should I use?
body: <p>I need to provide my client with a proposed model of the solution I am suggesting. The problem is very vaguely as follows:</p>
  
  <ul>
  <li> We need to create a solution that amalgamates much of the information in the organisation
  <li> Information will be available from several systems. 
  <li> INformation from the "central hub" will also be made available to other external systems (this information is not private - we are trying to share it as widely as possible).
  <li> Essentially we want to model the interactions between different components in the system.
  </ul>
  
  <p>What would be a good set of diagrams to use?</p>
  
  <p>So far I have decided to have a Use Case and Communication Diagram. Class diagrams are too detailed at this stage. What other high level diagrams do you think are appropriate.</p>