17 Activity – How Property Order Determines a Hierarchy
Let’s assume you have eight shirts in your closet. Four are T-shirts and four are button-down or “dress” shirts. They come in four colors: blue, red, white, and black.
So it makes sense to use these two properties of “shirt type” and “shirt color” to organize the shirts in your closet. But the order in which you apply these property tests determines what shirts go together. Let’s organize them first by type and then by color:
ACTIVITY: Translate this visual depiction of the organizing system for the shirts into a hierarchy diagram like those for the colored shapes in the previous chapter. SHIRTS goes at the top … now draw a diagram with the other two levels
Now let’s organize the shirts first by type and then by color:
ACTIVITY: Translate this visual depiction of the organizing system for the shirts into a hierarchy diagram like those for the colored shapes in the previous chapter. As before, SHIRTS goes at the top … now draw a diagram with the other two levels
Your hierarchies should look like the diagrams in the next chapter.
