• See here for a short description of BON.
• BON - Business Object Notation. The BON method for analysis and design of object-oriented software is a means of extending the higher-level concepts of the Eiffel programming language into the realm of analysis and design aided by a graphical notation akin to but different from UML.
• Using the EiffelStudio/BON diagram tool

BON Template

1. Download and unzip the above BON Template.
2. Go to draw.io and create a new drawing (backup site: draw@eecs). You can also download it as an app.
3. Import the BON template via File ⇒ New Library:

Now use the template to draw the BON diagram

• Inheritance: Red Arrow
• Client Supplier (Green Arrow)
  • Reference (Association)
  • Expanded (Composition/Aggregation)

Notice that the template has a variety of Maths symbols for contracting