Flowchart and Pseudocode

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Flowchart and Pseudocode

• DesignTools Part2

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Topics

• Input Process Output (IPO) Chart
• Hierarchy/Structured Chart
• Flow Chart
• Pseudo Code
• Source Code

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Design Steps and Tools
IPO Chart
Hierarchy or Structured Chart
Flow Chart
Pseudo Code
Source Code
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FlowChart
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Flowcharting Symbols
REPETITION
START STOP
PREDEFINED PROCESS (MODULES)
ASSIGNMENT
INPUT OUTPUT
SELECTION
CONNECTOR
FLOW LINES
COMMENT
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Example1
Write a program that asks the user to enter a
temperature reading in centigrade and then prints
the equivalent fahrenheit value.
START
Convert centigrade to fahrenheit
inputCent centigrade
calcFah fahrenheit (1.8centigrade) 32
outputFah fahrenheit
STOP
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Example2

• Write a program that asks the user to enter
  firstName and lastName and display a welcome
  message to screen as Hello firstName lastName!
  Welcome to HCCS

START
Display welcomeMsg using firstName and lastName
inputNames firstName, lastName
outputWelcomeMsg welcomeMsg
STOP
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Pseudocode
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Pseudocode

• Step-by-step solution that will solve the problem
• It is a cross between the human language and the
  computer language
• A list that describes the desired manipulation of
  data

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Example1
PSEUDOCODE Display "Enter Centigrade " Input
centigrade fahrenheit 1.8 centigrade
32 Display "Centigrade to Fahrenheit "
fahrenheit
Example Result Enter Centigrade 30 Centigrade
to Fahrenheit 86
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Example2
PSEUDOCODE Display "Enter your Firstname and
Lastname " Input firstName, lastName Display
"Hello" firstName " " lastName ", Welcome to
HCCS!"
Example Result Enter Firstname and Lastname
Suma Rao Hello Suma Rao, Welcome to HCCS!