Methodology
Problem-solving skills are not the same as technical skills. The most valuable knowledge is the knowledge of methods.
Reasoning Methods
Deductive, inductive, and abductive reasoning are three basic reasoning types. In simple terms, deductive reasoning deals with certainty, inductive reasoning with probability, and abductive reasoning with guesswork.
Whys
What it is?
Fault Tree Analysis
Fault tree analysis(FTA) is a deductive, top-down approach to determining the cause of a specific undesired event within a complex system. It involves breaking down the root cause of a failure into its contributing factors and representing it through a graphical model called a fault tree, which helps managers and engineers identify potential failure modes—and the probability of each failure mode—for safety and reliability analyses.