Nouns referring to ways of thinking, processes and activities

Perspectives

Different particular or individual ways of considering

research on/into

Research is uncountable. To make it plural, you can just say 'studies', or 'research studies' or 'pieces of research'.

methodology

a system of ways of studying somthing

Identification

ability to establish the identity of something

Case

arguments, facts and reasons in support of or against of something

awareness

having special interest in or experience of something, and so being well informed something

significance

importance

assessment

judgement of the amount, value, quality or importance of

Approach

way of considering something