In this LESSON you will learn about:

Learning Objectives:
Defensive design considerations:
  • input sanitisation/validation
  • planning for contingencies
  • anticipating misuse
  • authentication
Maintainability: 
  • comments
  • indentation
  • the purpose of testing​
  1. Be aware of various methods of validation.​​​​
  2. ​Understand the use and role of Maintainability
  3. ​Be able to answer exam questions on Defensive Design

Lesson Overview 

Resources
Starter:
​Discuss with the class or students why programs or software fail.  Can they think of some examples.

Main:
  1. ​Introduce the Lesson Notes and the News stories.
  2. Students can take notes on the key points, messages and definitions.
  3. Use the card sort to organise the various methods of input sanitisation/validation.
  4. ​Students discuss examples of their experiences of these.

​​Plenary:​​
  1. ​Write down three statements on what you have learnt today
  2. Write down three methods of keeping programs 'robust'
  3. Discuss how you could use these methods in your CW.
1_lesson_notes.pptx
File Size: 1216 kb
File Type: pptx
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2_card_sort.docx
File Size: 861 kb
File Type: docx
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3_mcq_test.pdf
File Size: 506 kb
File Type: pdf
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