The Case Base
   - The casebase is just the collection of cases.
 
   - The simplest mechanism is to just have an array of cases.
 
   - We do this for our simple bank loan example and in the lab.
 
   - You could also have a database full of cases.
 
   - For large casebases you need to organise according to the
       similarity metric so that retrieval is efficient.
 
   - You could even distribute the data.