Ijetr042189

International Journal of Engineering and Technical Research (IJETR)
ISSN: 2321-0869 (O) 2454-4698 (P), Volume-5, Issue-3, July 2016
136 www.erpublication.org

Abstract— We are surrounded by computer software’s and
computer software has made our computing experience more
better. Various categories of software are available in market,
one of which is Open Source Software (OSS). As the name
suggest Open Source Software are those Software whose source
code is available for free. Most of the software’s available today
are open source software. Open Source Software is very popular
among various software firms. 78% of software companies are
dependent on Open Source Software’s.[1] Licensing for Open
Source Software are very easy and flexible. Thousands of
licensing communities are available for licensing Open Source
Software. The main reason for growth fo Open Source Software
production is due to its features such as – customization, security
and accountability, quality, etc. There is misconception among
people that money cannot be made form, but this is completely
wrong money can be made from Open Source Software and
people are even making money form Open Source Software.
The landscape of Open Source Software is very large and it is
definitely going to increase. It can be easily estimated that in
coming years all the software firms will completely relay on
Open Source Software’s.
Index Terms— Closed source software, Development,
Licensing, Open Source Software.
I. INTRODUCTION
Open source software is software whose source code is
available freely to see, modify, enhance and share. “Source
code" is the part of software which is visible only to
programmers who created it or who have legal rights to view
the code and only they can manipulate the code of software or
change the behavior or way of working of the software. A
normal software user can never view the source code of
software. Programmers who have access to a computer
program's source code can improve that program by adding
features to it or fixing parts that don't always work correctly.
The open-source model, or collaborative development from
multiple independent sources, generates an increasingly more
diverse scope of design perspective than any one company is
capable of developing and sustaining long term. Many of the
traditional software companies have tried to take advantage of
the free software methodology, not just by using the source
code (software), but also by creating advanced business
models.
II. DIFFERENCE BETWEEN OPEN SOURCE AND OTHER TYPE OF
SOFTWARE (CLOSED SOURCE SOFTWARE)
Some software has source code accessible only to those who
has created it or maintains exclusive control over it or who
can modify. These kinds of software are called "proprietary"
or "closed source" software. Only the original programmer or
owner of proprietary software can legally copy, inspect and
Mayank Joshi, Computer Science, Birla Institute of Applied Sciences
, Bhimtal, India, 9410167522.
alter that software, if anyone else found doing any kind of
alternation with piece of software will be considered as an
illegal act. In order to use closed source software’s, the users
must agree all their term and conditions (usually by accepting
the license displayed at the time of installation of software)
that the user will not do anything with the software that is not
permitted by owner of software. Examples of proprietary
software are – Microsoft Office, Intent Download Manager
(IDM). Open source software is totally opposite of closed
source software’s. The owner of Open Source Software make
its source code available free for viewing, copying, altering or
sharing. Open source software’s are generally safer than
closed source software’s (propriety software) because the
software is open to public, creating a mass collaboration that
results in the software being constantly updated, fixed,
improved, and expanded on. Mozilla Firefox, Blender are the
example of Open Source Software. According to a study
Linux (Open Source Operating System) source code has 0.17
bugs per 1000 lines of code while proprietary software
generally scores 20–30 bugs per 1000 lines [2]
III. WHEN A SOFTWARE IS CALLED OPEN SOURCE SOFTWARE
Every software cannot fall under the category of open source
software for a software to be open source, showing
implementation details doesn't mean software is open source
software. There are certain standards which the software have
to follow to be called an open source software:
1) The implementation of the software must be
available freely for viewing, modifications, sharing, and
software should be shared in complied and source code form
and there must be some source form where source code can be
obtained for free. Most popular example is GitHub.
2) The software must be redistributed freely. If anyone
sell the software as a part of other software (proprietary
software) in that case license must not charge anything to the
developer. The developer is free to use it in any way he want.
3) The software must be licensed under any of the
various open source licensing community and license must
not put any restriction on all other modified or derived work.
For example it must not say that is original software is open
source then the modified work must be open source or
derived work must be licensed under same licensing
community(GNU GPL is an exception, which says derived
work should also be licensed under GNU GPL and derived
work must be open source).
4) The license must not restrict anyone from making
use of the program for any other purpose. For example, it may
not restrict the program for being used as commercial
purpose. Developer can use the software or sell the software
in the way he want.
IV. OPEN SOURCE DEVELOPMENT
The development model is adopted for the development for
open source software (projects) is shown in fig.1.a. The
Open Source Software Development Methodology -
A Review
Mayank Joshi

Open Source Software Development Methodology - A Review
project leader is a person who has designed the foundation of
software or a developer who has the initial idea and who
implemented it as a software. He can be a single person or a
group of person or any institution. He can design the software
for personal use or for any institution or for any other purpose.
Fig. 1.a: Open Source Development Model [3]
As soon as project leader will release the software meanwhile
he will also release the source code of software which will be
accessible by other people. If any person want to do future
development in software he/she can download the source
code and can start development. The person who edits or alter
the source code is known as Volunteer. The volunteer can use
the source code for fixing further bugs or manufacturing
completely new software, or transforming software for
personal use etc. It is not compulsory that the new software
developed after modification will be open source, it can be
open source software or can be closed source or commercial
software. It totally depend on volunteer how he choose to
publish or release his new modified software.
Fig. 1.b: Open Source Development Working [4]
Fig. 1.b: shows the detailed open source development process
working. Source code of original software released by the
developer is accessed by other user and the user made further
changes to the software and release to World Wide Web
(Internet) so that it can be available for modification for other
user, and the cycle continues in same way. Now two version
of software are available in market the original one and the
modified one. Now other user who want to contribute has
more option to choose between various versions of software.
V. OPEN SOURCE LICENSING AND COPYRIGHTS
Licensing of open source software is generally done to make
copying, modification, and sharing legal. Thousands of
different licenses are available, developer can choose any
license which he thinks is best suitable for him. Of all the
licenses available some of most popular open source licensing
communities are:
 Apache License 2.0[5]
 BSD 3-Clause "New" or "Revised" license[6]
 GNU General Public License, version 2 (GPL)[7]
 GNU Library or "Lesser" General Public License
(LGPL)[8]
 MIT license[9]
 Mozilla Public License 2.0[10]
 Common Development and Distribution License[11]
 Eclipse Public License[12]
Some of these licenses are very easy to adopt as they say user
can easily Some licenses are very easy to adopt because of the
flexibility in licensing while some are very difficult to adopt
because of certain restriction with licensing such as GNU
GPL (or GPL) uses copyleft licensing which means the if
original software is released under GNU GPL (or GPL)
licensing then the modified or derived software must also be
distributed under same licensing term. If derived work is
published under any other licensing term then it will be
considered as violation of licensing. Linux kernel is example
of open source software which is licensed under
GNU GPL licensing.
VI. RISE IN OPEN SOURCE PROJECTS
Fig. 2: Inflation in Open Source Projects, 1993 - 2007 [13]
Fig. 2 shows the growth in open source projects between years
1933 – 2007. Before 1999 the figure was very less, total
number of open source projects were very less (not even 500)
and before 1996 open source was not even very popular.. But
after 2002 the number of open source project increased very
rapidly and most of these projects were commercial projects.
There were various reason for such a rapid increase some of
which are listed below:
1) You do not have to re-invent the wheel which means
if you are developing a software so you don't have to write the
whole code again. You can use the source code of another
open source software and modify the source code to fulfill
your requirement. Hence it help to save time and decreased
software development cost.
2) The quality of open source software is very high as
lots of skilled developers are continuously working on it to

International Journal of Engineering and Technical Research (IJETR)
ISSN: 2321-0869 (O) 2454-4698 (P), Volume-5, Issue-3, July 2016
increase the quality of software. The software is also free form
various vulnerabilities as bugs are continuously fixed by
developers and bugs free, more stable versions are released on
regular basic. This also make open source software more
secure as if there if there is any security issue it can be fixed in
further releases.
3) Licensing of open source software is very easy and
flexible which can also be considered as the reason of increase
in open source software. Unlike closed source or proprietary
software, open source software licensing ensures the source
code of software is to available for free and can be modified
and altered by any developer having source code hence
developer do not have to depend on owner for source code.
4) Open source software provide an unique feature
known as customizability. It ensures that user can customize
the software himself according to his need. If user would like
add something or customize he can you can hire skilled
software developer to do it for him. Hence open source have
no limitation.
5) Some Open source software also provide the feature
known try before you use which ensure that user do not have
to install the software, he can try the software and if he finds
the software is suitable for him than he can install the
software. Example of try before you use is Linux which is an
open source operating system. You can run Linux Os directly
without installing it.
VII. CAN MONEY BE MADE FROM OPEN SOURCE SOFTWARE
There is myth among people that money cannot be made from
open source software. But it is totally hogwash, money can be
made from open source software. Various ways of making
money with open source software are as follow:
1) You can make money by adding specific features
or extensions to a software. Some companies offer bounties to
have specific features implemented in open source software
that they use for business functions. Often there is no need for
the feature to remain closed source, so significant code is
contributed back to the community. In some cases the
additional features are required to remain proprietary, but are
based on open source software. Hence in both the cases
developer have opportunity to earn money.
2) As a developer you can develop an open source
commercial or non-commercial software. You have to make
the software and source code available for free but you can
charge user or institution for its maintenance.
3) You can make the basic version of a software
available for free, but you can charge for additional 'premium'
features. Cedega(previously known as WineX) provides a
reimplementation of the Windows DirectX API under Linux
and is released as a combination of free and proprietary
code[14]. Gmail for organizations is one example of a service
that offers both free and premium options or LinkedIn which
also provide both free and premium version.
4) You can earn form advertisement. You can design an
open source software, but you can add advertisements to your
software, so that when user may use the software he or she
may see the advertisement and you can charge money to
advertising company. You can also charge the user to remove
advertisement by purchasing premium versions (as discussed
in 3rd point). This way of earning money is very popular now
a days. Software’s are available for free but they are asking
you to pay to make your software advertisement free.
VIII. CONCLUSION
Open Source methodology has increased notably nowadays as
compared to past and certainly going to increase in coming
years due to its various advantages, such as the ability to
reduce costs and development time, or to avoid being
dependent on a single vendor and availability of source code.
Open Source is definitely changing the world of software
development. More number of large and small software
companies are shifting towards open source. So contributing
to open source and becoming an open source developer is a
plus point to modern and traditional developers. Many large
firms has started various programs to increase the
contribution of developers towards open source. For example
Google has started Google Summer of Code to encourage the
student’s developers to participate in open source projects.
Hence we can easily conclude that it is worth being an open
source developer.
ACKNOWLEDGMENT
I would like to express my sincere gratitude to my advisor
Professor Dr. Yugal Joshi, Kumaun University for his
support. His guidance help me a lot at the time of researching
and writing thesis. I would also like to express thank faculty
members form Birla Institute of Applied Sciences for their
help. I would also like to express my gratitude towards my
friends and family members for their help and support.
REFERENCES
[1]https://opensource.com/business/15/5/report-future-open-source-survey
[2]http://knowledgebook.ru/articles/articles-33/open-source-software-vs-pr
oprietary-software-16315/
[3]https://tamkeentech.files.wordpress.com/2015/03/picture1.png
[4]https://cippic.ca/sites/default/files/images/figure1.jpg
[5]http://www.apache.org/licenses/LICENSE-2.0
[6]https://spdx.org/licenses/BSD-3-Clause
[7]https://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html
[8]https://www.gnu.org/licenses/lgpl-3.0.en.html
[9]https://en.wikipedia.org/wiki/MIT_License
[10] https://www.mozilla.org/en-US/MPL/2.0/
[11] https://en.wikipedia.org/wiki/Common_Development_and_Distributi
on_License
[12] https://www.eclipse.org/legal/epl-v10.html
[13] http://15809-presscdn-0-93.pagely.netdna-cdn.com/wp-content/uplo
ads/media/MTIyMzAyNjQ3NzEyNjQ1NzM0.jpg
[14] https://en.wikipedia.org/wiki/Cedega_(software)
Mayank Joshi Computer Science, Birla Institute of Applied Sciences
Bhimtal,

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