Open Source And Proprietary

• Refers to how a user can legally use software.

• The software code written by programmers.

• Users can view and modify source code.

• Linux • Python • Firefox

1) - Customised to an organisation’s needs. 2) - Users can work together to modify, debug and improve a product. 3) - Unwanted features can be removed to make the software run faster. 4) - Low in price, can be free.

1) - Security Risks: some editors may add malicious code to the program. 2) - The code may be prone to errors as it may not have been tested fully. 3) - It may be difficult to receive support as development is often distributed between people in different locations. 4) - It requires technical skills to be able to adapt source code efficiently and maintain the code.

• Users are prevented from being able to view or modify the source code.

• Microsoft Office • Spotify • Fortnite

1) - The code is well tested and has been professionally developed. Updates will generally be secure. 2) - Most developers will provide some form of help/support. 3) - The company can be held to account if it does not perform as listed in the terms and conditions upon purchase.

1) - Users must rely on the company to provide updates and fix issues. This might be infrequent or stop completely. 2) - Users cannot modify, debug or improve the code for their own benefit. 3) - Often not free and may be expensive.