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Video Title: Types of Maintenance
Description: Types of Maintenance
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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Types of maintenance.

In the previous video, we have discussed
what is a maintenance and what are the

different sources for which the
maintenance might be required.

So, in this video, we are concentrating on
types of different maintenance activities.

So, in a software lifetime, the type of
maintenance may vary based on its nature.

It may be just a routine maintenance task
as some bug discovered by some user or it

may be a large event in itself based on
the maintenance size or the nature.

So, sometimes it may work that a
particular user have found some of the

problems with the software after running
the software for multiple years also.

So, in that cases, some maintenance might
be required to resolve that respective bug.

But sometimes, may we may have a large
change, huge change in the software.

So, there also we might be requiring
maintenance.

Following are the some types of
maintenance based on their characteristics.

So, let us go for different types of
maintenance.

The first one, there is a corrective
maintenance.

This includes modifications and updations
done in order to correct or fix some

problems which are either discovered by
user or concluded by user error reports.

So, which has been
detected, and which has been observed and

explored by the user
in some included in the user error reports.

That is why we may be conducting some
corrective maintenance to fix some bugs.

Next one is our adaptive maintenance.

So, this includes modifications and blends.

So, we know that our business world is
changing.

The world economy is also changing.

So, that as a result of that, we might be
requiring some adaptive maintenance.

So, that my software, our software can
cope up with the respective changes in the

in the economics, respective changes in
the market, or the market.

Respective changes in the government's
policy.

So, next one, we are going to discuss
perfective maintenance.

This includes modifications and updates
done in order to keep the software usable

over long period of time.

So, to keep
the software usable for the long period

of time, this
sort of maintenance will be required.

So, it includes new features, new user
recommends for refining the software and

improve its reliability and the respective
performance.

So, this is known as predictive maintenance,
which is one of the type of maintenance.

Last one, we are going for the preventive
maintenance.

This includes modifications and updates to
prevent future problems of the software.

That means, here we are not reactive,
we are proactive.

If we guess that a software might be
having some problem in the coming days,

we are having some symptoms we are
getting.

So, for that purpose, we might be going
for this preventive maintenance.

So, it aims to attend or the attend
problems and which are not significant at

this moment, but may cause serious issues
in coming future.

So, that is known as the preventive
maintenance.

So, in our discussion, we have discussed
what are the different types of

maintenance maintenance are possible in
our software.

Thanks for watching this video.