methodology – a system of methods, and principles for doing something, especially studying
(Pronounced meth-uhd-ol-uh-jee)
To remember the definition of the word methodology, use the following mnemonic:
Ology - We know that ology is "the study of", so a methodology is the system of methods we use to study something.
Below is an example of one persons expected method of studying the life cycle of a butterfly next to the reality.

Examples of methodology in a sentence
The team's methodology was flawed and made the study irrelevant.
The methodology needed updating to factor in new technology.
He was struggling to follow the complex methodology.