Chapter 7. Introduction to Mastering Shapes
Unrelated LDSs can look similar. You can use their similarities to make analogies between the shapes. By making analogies, you can leverage your experience with a familiar LDS into expertise about an unfamiliar one.
Definition of Shape
Compare LDS Fragments 7-1 and 7-2 describing data from unrelated endeavors.

Fragment 7-1

Fragment 7-2
When LDS fragments resemble each other like this, we say they have the same shape. As it turns out, there is a small set of fundamental shapes that recur ...
Get Mastering Data Modeling: A User-Driven Approach now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.