A Framework for Defining the Functional Role of Annunciation

Abstract

This paper describes a framework for examining annunciation and its use in a project to define the functional role for CANDU annunciation. This work was performed as part of a larger multi- year project to develop, evaluate and recommend an architecture for CANDU annunciation that better meets the information needs of plant staff under all plant operating regions. The first phase of the project, performed in 1991, has established an initial definition of the functional role for CANDU annunciation. Subsequent project phases will define options for solution for specific alarm functions at CANDU stations in areas where the present annunciation systems do not fully meet the needs of operations staff. This paper discusses background to the project, describes the place of annunciation in relation to other plant operator support and plant information functions, describes how the functional role was defined, and outlines the direction of further work.