I will contend that conceptual integrity is the most important consideration in system design. It is better to have a system omit certain anomalous features and improvements, but to reflect one set of design ideas, than to have one that contains many good but independent and uncoordinated ideas.
– Frederick P. Brooks, Jr,The Mythical Man-Month
Conceptual integrity is the principle that anywhere you look in your system, you can tell that the design is part of the same overall design.
– William G. Griswold