Building Robust Programs

Building Robust Programs

1. UNWANTED INPUTS

   • Input Sanitisation
     • Cleans input of unwanted characters
     • e.g stripping out spaces in a password
   • Input Validation
     • Checks the input as to whether it meets the criteria
     • e.g. making sure an email address has an "@" symbol

2. AUTHENTICATION

   • Making sure access is only available to certain users
   • e.g having a password to a certain user account or restricting rights
   • Security increased with more complex passwords/regularly changing them

3. MAINTAINABILITY

   • Use of formatting/structure to make the code's intention clear
     • comments
     • indentation
     • formatting
     • helps out other programmers

4. TESTING

   • Checks for things such as syntax and logic errors
     • Syntax error occurs when a grammatical or spelling mistake occurs
     • Runtime occurs when the code is running
     • Logic error is when the code runs but not as expected
   • Iterative testing
     • Testing that occurs throughout the process of coding
   • Final testing
     • Testing that is performed once the code is complete to ensure it meets the user's needs