Question
2:
Develop a Procedural
Design for a program that accepts
an arbitrarily long text as
input and produces a list of
words and their frequency of
occurrence as output.
Answer
The procedural
design converts structural components
into a procedural description
of the software
Structured programming
- Structured Control
Flow Chart
Flow charts do
not guide the designer towards
a structured design the way
box diagrams do. To enable the
flow chart to be applied to
achieve a structured procedural
design, we limit ourselves to
creating flow charts using only
the structured chart constructs
(i.e., sequence, selection,
repetition up to).
We have three constructs in
structured programming:
-Sequence
-Selection
-Repetition.
The flow of control
is always from top to bottom
only. Each construct has a predictable
logical structure, and is entered
at the top and exited at the
bottom.
Arbitrarily long
text as input
PROCESS
Input – Text Process-
Two arrays out of which one
contains words by splitting
whole text and at the end of
the text another loop goes to
make another array which indicates
frequency of occurrence as output.
Frequency of Occurrence
Frequency of Occurrence
Program design language (PDL)
The Graphical
Notation:
The appropriate
development of a knowledge representation
(based on the cognitive processing
of experts) that can deal with
concepts and facts relating
to the represented diagram,
the graphical notation of the
diagram, emergent properties
arising from the construction
of the global units, the relationships
between the perceived concept
of the diagram and the facts
inferred from the graphical
notation.
For software following
notations are used to represent
the program/logic.
Assignment
of variable
Condition Operator:
Socket Operator
Connector Operator
The annotation Operator
The sequential operator
The parallel operator
Cont...
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