Software Licences

Lesson Instructions

Watch and follow the YouTube video, the lesson contains three parts:

  1. Key Information and content - all you need to do here is watch and listen. We recommend you take some notes for this one!

  2. Learning activity - You are to complete the true or false activity on open source and proprietary software.

  3. Consolidation - these are past exam question and are for deliberate practice to check your understanding.

Task - True / False Activity

Software licences activity

Task - Exam Questions - Deliberate Practice

Exam Questions - Web

Mark Scheme

Question 1 (a)

  • Source code not made available / only compiled code is published

  • Licence restricts the copying / modifying / distribution of the software

The mention of a licence is not sufficient. Candidate should state that the licence restricts copying / modifying / distributing.

"Closed source" is not enough because it just gives an alternative term for "proprietary" without a description of what we mean by "closed"

Question 1 (b)

  • e.g.

  • Stops competing companies copying their software (or hardware / ebooks)

  • ...and producing similar/better products.

  • Ensures compatibility (with the e-book reader)...

  • ...as they can ensure that no modifications have been made

(mark points in pairs)

The first mark is for identifying a relevant advantage to the manufacturer, and the second for details expanding this point.

Accept answers about preventing reverse engineering the company's product or piracy of the company's software or e-books (e.g. DRM) as referring to the first set of answers.

Question 2 (a)

1 mark per bullet to max 2

  • e.g.

  • Other people can improve on the software / add features / maintain

  • gain a wider ranger of consumers / users

  • ...therefore gain reputation

  • use for advertising

  • ...gain income from adverts

Do not award mark simply for definition of what open source software is.

Question 2 (b)

1 mark per bullet to max 2

e.g.

  • Can sell // receive income

  • Program can be copyrighted

  • ...retain control over source code / modifications

  • ...retain control over distribution

Do not award mark simply for definition of what proprietary software is.