1) Conjecture 2) Theorisation 1) Generalization 2) Theorisation 
• (n.) The act or product of theorizing; the formation of a theory or theories; speculation.
A process by which scientists attempt to understand nature; it is the complement to experimentation. Theorization is the process of building mathematical models for how things work. Scientists always desire theories that are simpler than the data they explain. See also Occam's Razor and simulation. 
The`o·ri·za'tion noun The act or product of theorizing; the formation of a theory or theories; speculation. 
[n] - the production or use of theories
theorisation noun the production or use of theories