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What is data abstraction? Elaborate with example?
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Answer Posted / rajashree
we noted that a procedure used as an element in creating a
more complex procedure could be regarded not only as a
collection of particular operations but also as a
procedural abstraction. That is, the details of how the
procedure was implemented could be suppressed, and the
particular procedure itself could be replaced by any other
procedure with the same overall behavior. In other words,
we could make an abstraction that would separate the way
the procedure would be used from the details of how the
procedure would be implemented in terms of more primitive
procedures. The analogous notion for compound data is
called DATA ABSTRACTION. Data abstraction is a methodology
that enables us to isolate how a compound data object is
used from the details of how it is constructed from more
primitive data objects.
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