exam 1 in class info Flashcards
What is an information system
a set of interrelated components that collect (or retrieve), process, store, and distribute information to support decision manking and control in an organization
Software ex
COTS (commercial off-the-shelf)
GOTS (government off-the-shelf)
people
most overlooked part of an is
newer IS models
data replaces infrastructure
IS components
hardware, software, data or infrastructure, people
data
streams of raw facts representing events such as business transactions
one persons data can be another persons information
information
clusters of facts that are meaningful and useful to human beings in the processes such as making decisions
heiarchy of data
field (smallest unity of an entity)
record (collection of related fields)
file (collection of related records)
DataBase (collection of related files) - knowledge
possible data types
integer (no decimals) real character alphanumeric object (fingerprint) boolean (T/F)