This SpringerBrief presents the data- information-and-time (DIT)
model that precisely clarifies the semantics behind the terms data,
information and their relations to the passage of real time.
According to the DIT model a data item is a symbol that appears as a
pattern (e.g., visual, sound, gesture, or any bit pattern) in physical
space. It is generated by a human or a machine in the current contextual
situation and is linked to a concept in the human mind or a set of
operations of a machine. An information item delivers the sense or the
idea that a human mind extracts out of a given natural language
proposition that contains meaningful data items. Since the given
tangible, intangible and temporal context are part of the explanation of
a data item, a change of context can have an effect on the meaning of
data and the sense of a proposition.
The DIT model provides a framework to show how the flow of time can
change the truth-value of a proposition. This book compares our notions
of data, information, and time in differing contexts: in human
communication, in the operation of a computer system and in a biological
system. In the final Section a few simple examples demonstrate how the
lessons learned from the DIT-model can help to improve the design of a
computer system.