FLOWCHARTING

2010-03-05T05:21:00.000-08:00

INTRODUCTION OF FLOWCHART
Computers can neither think nor make decisions of their own.They can only do what they are instructed to do.They cannot be used to analyse raw data.The most important task in programming is not only the preparation of instructions for the computer to solve a given problem but the careful analysis of the whole problem.Hence the construction and use of FlowCharts as well as Algorithms for different types of problems are explained.

ALGORITHMS
An Algorithms is a step by step problem solving procedure that can be carried out by a computer.It may be set up for any type of problem : business , scientific or industrial.
Algorithms for scientific and engineering problems involve the use of mathematical formulae.

FLOWCHARTING
Flowcharting is a useful technique for the programmer and the systems analyst and is widely used.It is the diagrammatic representation of information expressed in the time sequence.It is called Flowchart are sketched in the many stages of formulating computer solutions.
In the flowchart technique , operations are represented by drawing the appropriate geometrical shape. The diagram shown above are Flowchart Symbols.These flow chart symbols are connected by arrows to illustrate the sequence of operations.It is conventional use symbols of a specific shape for each category of operation. A set of sysmbols that are sufficient for flowcharting many computer solutions.Additional conventions may be developed to make the charts easier to read.

A system flowchart is different from the normal flowchart in the sense that it shows the path taken as data passes from one organisational unit or processing machine to another within an organisation.It is used by the system analyst as an aid.

The conventions that are followed while drawing Flowchart are :-

Flowcharts can be drawn for all sorts of activities and processes. Any flowchart must be identified with a title,date and name of the author.
Flowchart sysmbols may be drawn in any size, but the ratio between dimensions should be maintained within reasonable limits in order to facilitate recognition.
The general direction of flow in any flowchart is from top to bottom or from left to right.
Arrowheads is used whenever the flow of information is drafted.It is also provided to improve the clarity of the flowchart.
The sequence is shown by lines joining the sysmbols which themselves represent operations performed.

Ref Book : Introduction to Computers.

IT Project

FLOWCHARTING