How to write code that includes probability of a choice?

Is a philosophy and a software and system development methodology that focuses on the development, use, and reuse of small, self-contained blocks of codes to meet the software needs of an organization.joint application designextreme programmingrapid application developmentservice-oriented architecture

The component of an information system consists of raw facts and by itself

Most lo/to hazards occur under the following circumstances, except: a) regular operation b) maintenance c) cleaning d) repair