Sense of management lies in a permanent decision-making, wherein every decision is characterized by taking (and even facing) risks: “blindfold” ones if missed, or well expected – foreseen, analyzed, evaluated, and prepared for. The purpose of this paper is to review, analyze and compare the popular and more-or-less standard Risk and Failure Analysis Instruments (RFAI), carefully reflect and explore their typical usage, pitfalls, problems and possible remedies. The paper starts with necessary definitions and then presents a multidimensional toolbar of well-known and newly introduced RFAIs, possible mistakes and failures in those tools’ application.

The proposed paper introduces and explains so called "Restaurant Bill Effect", following the presented principle by the Organizational Maturity/Stability criteria. The Restaurant Bill Effect, at the very first glance, just simply contradicts the Pareto principle, but the paper shows that these two principles rather complements one another. Essentially the Restaurant Bill Effect (RBE) demonstrates the Power of Miscellaneous, the notion extremely important in Management, which certainly is dayby-day decision making, prediction, evaluation, and prioritization of alternatives, and being restricted by different limitations and boundaries, including the budget issues. If the RBE phenomenon is evident, it means that the Pareto Principle in this case is compromised, and “the Miscellaneous” is no more the “Trivial many”. The paper is discussing why the Restaurant Bill Effect is undesirable and should be eliminated. The advantages for the process/system of being “Pareto-compliant” are presented. The way of transforming the “Powerful Miscellaneous” into “Trivial many” and therefore determination of a stable and mature Vital Few is offered, as well as the Test for being certain that the “golden ratio” of Pareto Principle is achieved and can be proven statistically.