testing

testing

1. test harnesses

   • automated testing - testing takes less time and the quality of the test is more thorough and better
   • runs the developed programming code under different conditions and monitor its output against the output that it should produce
   • produces results in a report which the tester can use to make adjustments to the programming code

2. performance testing

   • tests how fast a part of the system performs under a particular work load
   • is used to demonstrate that the system meets its performance criteria
   • compares 2 systems to find which one performs better and can measure what parts of the system or workload cause the system the perform badly

3. scalability testing

   • designed to ensure the system will function correctly and give acceptable performance levels when scaled up to its full requirements
   • similar to volume testing as it looks at the limits of the system by scaling up until the performance drops

4. volume testing

   • this is a program that is designed to see how well a system can cope with different volumes of data
   • finds the data limit of the system
   • notes how well a system can cope with the max data it can handle

5. usability testing

   • testing that the system isnt too complex and the users of the system can easily navigate the system to gain the full experience it has too offer

6. multi-platform testing/ profitability testing

   • mainly used for testing web sites to test how well a website runs on a range of different devices

7. prototyping

8. difficulties in testing large ICT systems

   • relies on networks so all data has to be encrypted for the referendum
   • relieing on service providers such as sky, BT to offer the network conection, if the service providers decides to do maintenence testing will have to stop