Decision analysis cycle
# Decision analysis cycle

The decision analysis (DA) cycle is the top-level procedure for carrying out a decision analysis. Decision analysis (DA) is the discipline comprising the philosophy, methodology, and professional practice necessary to address important decisions in a formal manner.

The traditional decision analysis cycle consists of four phases:

* basis development
* deterministic sensitivity analysis
* probabilistic analysis
* basis appraisal.

The diagram below depicts the decision analysis cycle:

A revised form of the cycle consists of an attention-focusing method followed by a decision method, each of which is composed of three stages:

* formulation
* evaluation
* appraisal.
