These are terms that are used to indicate the qualitative analysis of the modularity in a system, and they help us to identify and measure the design complexity of object oriented systems.

"An Object-Oriented Software Requirements Analysis Method," International Journal of Software Engineering and Knowledge Engineering, 2(1):145–168, 1992. Hayes, F. and D. Coleman. "Coherent Models for ...

However, utility classes aren't particularly object-oriented. After you handle the static methods, consider factoring the utility classes in the system into something more object-oriented as well. But ...