This figure represents the UIM code stream:

• On the right side of the figure there is a box containing method a(), and two rows of three dots representing executable code within method a(). The words "extension point", in red, appear within method a(), below the executable code, which is commented out.

• On the left side of the figure in the upper corner, there is a call to method a(). An arrow extends from the call to method a() to the box containing method a().

• On the left side of the figure in the lower corner, there is another call to method a(). An arrow extends from the call to method a() to the box containing method a().