buttonology
Noun
Meaning
The study of buttons (clothing fasteners and badges).
(derogatory) An exaggerated and pointlessly pedantic systematization, especially of something trivial.
(informal) The basic training required to start using a machine or piece of software: what the components of the interface are, what they do, and how to accomplish basic tasks.
(US, military, slang) User interface
Source: en.wiktionary.org