THE AUTOMATED FLOWCHART DESIGN AND CODE WRITING SYSTEM

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LogicCoder Online Tutorial 7 of 7-ABSTRACT A CONTROL LOGIC

Learn how to Abstract and Expand the Control Logic

If you have a flowchart that illustrate the control logic for a program with details that you do not want to see, LogicCoder provides you with facilities to select the details you do not want to see and then abstract that detail away from view. LogicCoder will place the abstracted detail in a special file and represent the details by a special symbol. On the other hand, if there are hidden information in a flowchart that you wanted to know about, LogicCoder provides you with facility to expand the hidden information to bring it to view. In both cases, the flowchart maintains its logical consistency.

This section of the tutorial shows you how to use these facilities in LogicCoder and how to insert template structures in an existing flowchart in order to expand the control logic and/or to build complex software systems from existing components. Use this link to convert your source code to LogicCoder and Ms Excel flowchart.

At the end of going through these tutorials you should
Use LogicCoder GUI system to draw the flowchart for a relatively simple Input/Output program problem solution.
State the Advantages and Disadvantages of using Flowcharts to represent the Control Logic of a Computer Program

Click the following link to get more detailed information about the use of flowcharts to design and document program problem solution. Click here to get information

You get a free tutorial version of LogicCoder for ANSI C/C++ and BASIC programming whenever you make on-line purchase of any of the following books.

• Structured Programming with BASIC I; ISBN 0-9544270-1-7; Price $44.00 USD
• Structured Programming with ANSI C; ISBN 0-9544270-0-9; Price $56.00 USD
• Object Oriented Programming with ANSI C++; ISBN 0-9544270-3-3; Price $66.50 USD

If you are doing this tutorial online, then you should have gone through the previous tutorial document before starting this section. CLICK HERE IF YOU HAVE NOT DONE THE PREVIOUS SECTION.

Click the following link to download the tutorial in PDF format. Click to download. You must observe all copyright in using the tutorial document. Here is a quick review of the program problem specification to begin with.

A program is to be designed and then coded in ANSI C/C++ that creates an output listing of telephone information on individuals. A sample of input data to be used for testing the program and the resulting output from the program is given as follows. .

SYMBOL HIGHLIGHTING AND SUBSTRUCTURE ABSTRACTION

It is some times useful to highlight a group or sequence of symbols in a flowchart by setting them to a common colour. This may be for pedagogic or documentation reason for example. In this section of the tutorial we want to highlight sections of the flowchart we intend to abstract in order to create a simply abstract view of our system.

An abstract view of a system simplifies the overall understanding of the control logic of the system without loss of essential information. More advance versions of LogicCoder allows you to select sections within a flowchart and then abstract them to the Predefine Abstract symbol. The Predefine Abstract symbol is represented as explained in figure 23. LogicCoder also allow you to expand an abstracted view so as to replace its original detail.

In the next few exercises, you will learn how to select groups of symbols to perform common operations on them.

STEP 4:
Use the same process as in step 1 to select the first process symbol, the decision symbol and the symbols that constitute the body of the loop in the flowchart and then execute the Symbol Fill Colour function once more as in step 3. This time you will select a different fill colour.

STEP 5:
Select the colour red in the colour dialogue window and then click the OK button or press the Enter key once.

Your document should appear similar to that in figure 25.

STEP 6:
Select the last Input/Output symbol and then change its colour so that it appears as illustrated in figure 26.

STEP 7:
Select the last Terminal symbol and then execute the Write Symbol Text function so that its text appears as illustrated in figure 26.

LogicCoder supports the incremental approach to the development of complex software systems both by the (1) bottom-up and the
(2) top-down design approach.
(1) The bottom-up approach allow you to design a complex system by adding more functional components to an already existing system until a refined result that meets a specific requirement is reach. You use LogicCoder Insert Structure or Insert Symbols to insert other functions or flowchart sections into an existing flowchart. You can also change selected symbols in a flowchart.

THAT'S ALL FOR NOW FOLKS! IF YOU WOULD LIKE TO CONTINUE, THEN YOU CAN DOWNLOAD THE PDF COPY OF THIS TUTORIAL OR PURCHASE A COPY OF LogicCoder WHICH COMES WITH A FULL TUTORIAL!