Computer Science
Grade 7
20 min
Open Source Software
Open Source Software
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1
Introduction & Learning Objectives
Learning Objectives
Define Open Source Software (OSS) and its core ethical principles.
Explain the ethical responsibilities of using and contributing to OSS projects.
Identify and differentiate between two major types of open source licenses: permissive and copyleft.
Analyze a real-world scenario to determine the ethical steps for using an open source component in a project.
Demonstrate how to provide proper attribution (credit) to the original creators of an OSS project.
Compare and contrast the ethical considerations of open source versus proprietary software.
Ever used Firefox, played a game made with Godot, or used an Android phone? 🧑💻 You've been using Open Source Software! But what are the rules for using code that everyone can see?
This lesson explores the wo...
2
Key Concepts & Vocabulary
TermDefinitionExample
Open Source Software (OSS)Software where the source code is made freely available for anyone to see, use, change, and share.The VLC media player is open source. Programmers can look at its code to see how it works and even suggest improvements.
Source CodeThe human-readable instructions written by a programmer that tell a computer what to do.A line of Python source code could be `print('Welcome to the game!')`.
Proprietary SoftwareSoftware with source code that is kept secret and owned by a company. You can use it, but you can't see or change its code.Microsoft Windows or the game Fortnite. You can't see the code that makes them run.
LicenseA set of legal rules that tells you what you are allowed to do with a piece of software.The MIT License is a...
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Core Syntax & Patterns
The Rule of Attribution
If you use open source software, you MUST give credit to the original creators as specified in the license.
Whenever you include an open source library, code snippet, or asset in your own project, find its license file (often named `LICENSE` or `COPYING`) and follow its instructions for giving credit. This is the most fundamental ethical requirement.
The 'Share-Alike' Pattern (Copyleft)
Modifications to copyleft-licensed software must also be released as open source under the same license.
Use this pattern when you are modifying and distributing software with a license like the GPL. It ensures that the software and all its future versions remain free and open for everyone in the community.
The Permissive Pattern
You can use the softwar...
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Challenging
A new open source license states: 'You may use and modify this code. If you share your modified version, you must make your source code available, but you can use any open source license you want for it.' How does this differ from the GPL's 'Share-Alike' pattern?
A.It is more strict because it forces you to share your code.
B.It is less strict because it does not require using the *same* license.
C.It is exactly the same as the GPL.
D.It is a permissive license with no sharing requirements.
Challenging
A company takes the code for the VLC media player (an open source project), adds a new logo, and sells it as 'Super Video Player' without releasing their new source code. The original VLC uses a copyleft license (GPL). Based on the tutorial, is the company's action ethically acceptable?
A.No, because the GPL's 'Share-Alike' rule requires them to release the source code for 'Super Video Player'.
B.Yes, because open source software can be used for anything, including commercial products.
C.Yes, as long as they give credit to the original VLC creators in a 'Help' menu.
D.No, because you are never allowed to change the logo of an open source project.
Challenging
You are leading a school coding project. One member wants to use a helpful library with a GPL (copyleft) license. Another member insists on including a different, proprietary library whose license forbids distributing its source code. What is the core ethical conflict, and what is the correct resolution?
A.The conflict is which library is better; you should vote on it.
B.There is no conflict; you can use both as long as you give credit to each.
C.The licenses are incompatible; you must choose one or the other, as you cannot satisfy both rules at the same time.
D.The conflict is about cost; you should choose the library that is free to download.
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