The second sentence addresses concepts that repre-
sent the life cycle of information systems, more com-
monly called the “systems life cycle.” This particular
definition represents the first time concepts from an
informatics method, the systems life cycle, appear in
a definition.
While this one tool is important to informatics nurse
specialists, other tools are as well. Why this one tool
was singled out is not specified. In fact, informatics
nurse specialists employ a variety of informatics the-
ories, principles, methods, and tools. In the end, how-
ever, this particular ANA definition was not been
frequently cited, as is evident in later informatics
work.2,5,22