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Video Title: Structured Programming
Description: Structured Programming
Watch more Videos at https://www.tutorialspoint.com/videotutorials/index.htm
Lecture By: Mr. Arnab Chakraborty, Tutorials Point India Private Limited
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Structured programming.

Whenever we develop a software and then we
go on adding multiple different codes with

the respective coding process.

So, whenever the code size will be too
huge and if the respective developer or

the coder, if they are not in a state to
locate that which code has been written

where and what is the purpose of different
codes written in different sections,

then that will create a mess.

So, that is why we require a structured
programming to get implemented.

So, in the process of coding the lines
of code keep

multiplying
thus the size of the software increases.

And gradually it becomes next to impossible
to remember the flow of the program.

If one forgets how the software and its
underlined programs, the respective files

and procedures are constructed,
it then become very difficult to share the

debug and modify the program whenever some
changes will come.

And the solution to this is the structured
programming.

And it encourages
developers to use subloutines,

loops, instead of using
simple jumps in the code.

Thereby bringing clarity in the code and
improving its efficiency.

Structured programming also helps
programmer to reduce coding time and

organize the code in a very perfect way,
in a very proper way, so that the program

can be written in a very modular way,
in some different approaches.

So, what are the different approaches
which will be taken while making a program

written in some structured way?

So, let us go on discussing on those on
the topic.

So here we are having mainly three
different components are there.

So, structured programming states how the
program shall be coded.

And it uses three main concepts.

So, first one is the top-down analysis,
next one is the modular programming,

and last one is the structured coding.

So, let me discuss one by one.

At first, we are discussing top-down
analysis.

A software is always made to perform some
rational work.

So, in case of
top-down analysis, we know that always

a software is
always try to perform some rational work.

And basically, in our top-down analysis,
the problem is broken down into small

pieces, where each one has some
significance.

And each
problem is individually solved and steps

are clearly stated about how to solve
the problem.

And that is known as top-down analysis.

So, at first the problem
will be solved and it

will be broken down
into several sub-problems.

And individually, all these problems will
get solved.

And also, some hierarchy may also get
constructed in this process.

Next one is our modular programming.

So, while programming, the code is broken
down into smaller group of instructions.

And these groups are known as the modules.

Sometimes, we can also call it a
sub-programs or sub-routines or procedures.

Modular programming based on the
understanding of top-down analysis.

And it discourages jump using go-to
statements in the

program, which often
makes the program flow non-pressible.

So, they are trying to avoid the jump
statement that is the unconditional go-to.

Conditional go-to will be always there.

Obviously, that will decide the control
flow.

But unconditional go-to should be avoided
in case of modular programming.

Jumps are prohibited and modular format is
encouraged in the structured programming.

So, here each and every program will be
thought as collection of multiple

different modules, where each and every
module can be

considered as a procedure or sub-routine
or say sub-function.

And each and every module should perform
some certain specific task.

And in this way, in case of modular
programming, we are going to define

different modules and we shall decide that
how these modules will get executed.

Next one is about structured coding.

So, in reference with top-down analysis,
the structured coding subdivides the

modules into further smaller units of code
in order of their execution.

So, these modules will have this
respective smaller unit of codes.

And structured programming uses control
structure, which controls the flow of the

program, whereas structured coding
uses the control structure

to organize
its instructions in a definable pattern.

So, in case of
structured coding, we are writing this

code in each
and every module in a very structured way.

And we are trying to get the idea that how
the control will be flowing through the

structure coding in each and every
respective modules.

So, in this particular video, we have
discussed this top-down analysis.

So, So let me go back once again.

So this is our top-down analysis.

We have discussed on that.

And then we have gone for the modular
programming.

And last one is the structure coding.

So this is
our structure programming discussion

with certain
more detailing and the classifications.

Thanks for watching this video.