Producing robust programms

Producing robust programms

1. Defensive Design

   • To ensure a program runs correctly and continues to run no matter what actions a user takes.
   • Validation
     • Ensuring all data is sensible and reasonable.
       • Length check
       • Length check
       • Format check
       • Range check
       • Presence check
   • maintainability
     • Ensure that code is maintainable
       • Makes it more condense and easier to read.
   • Testing
     • Ensure that a developed program frunctions as it was designed
     • Iterative testing
       • Ongoing throughout the development process.
     • Final testing
   • Authentication
     • Ensure that systems have some form of authentication
     • I.e. Having usernames and passwords
     • Update their passwords regulary.