decīˈsively adverb

decīˈsiveness noun

decīˈsory adjective

Decisive

decision support system noun (computing)

A system that assists in decision-making by using one or more computers and programs to provide and organize data

decision table noun (logic and computing)

A table comprising four sections showing a number of conditions and actions to be taken if these are or are not met, indicating the action to be taken under any condition or set of conditions

decision theory noun

The study of strategies for making decisions in conditions of uncertainty