GCSE Digital Technology (CCEA)

Once software has been created, it must be tested under different conditions to make sure it works. This can be achieved with white box, black box, unit, integration and system testing, as well as thorough planning and evaluation.

In some ways, computer languages are no different to our own. They have strict rules programmers must follow in order to make their programs understood. Mistakes throw up errors, which must be fixed.

Computer programs use data stores to organise the different types of data they contain. Data stores can be either a constant, variable or an array, and contain inputs, outputs, functions, instructions, sequences and more.

How is a product evaluated and user tested, and why? Evaluation and user testing help ensure products meet their original design specification, offer an efficient solution, operate across appropriate platforms and are full and complete.

Software testing involves testing a program under various conditions to make sure it works. Even the best programmers make mistakes, so it is important to identify them as soon as possible in the development stage so that errors can be fixed.