The database development life cycle
The database development life cycle

Start this free course now. Just create an account and sign in. Enrol and complete the course for a free statement of participation or digital badge if available.

Free course

The database development life cycle

1.7 Testing

The aim of testing is to uncover errors in the design and implementation of the database, its structure, constraints and associated user and management support. Testing is usually considered to involve two main tasks – validation and verification. Without adequate testing users will have little confidence in their data processing.

Validation answers the question: has the right database been developed to meet the requirements? It attempts to confirm that the right database has been constructed, with the right characteristics to meet the specified requirements.

Verification answers the question: has the database design been implemented correctly? Verification ensures that the processing steps, constraints and other ‘programmed’ components of the database (security, backup, recovery, audit trails, etc.) have been correctly implemented and contain no errors in program logic or execution sequences.

Of course, testing does not just take place only after all the above development steps are complete. It is usually applied throughout the stages in the development processes and includes appropriate reviews to scrutinise the outputs of the development activities. The aim is to identify errors as soon as possible in the development life cycle.

M359_1

Take your learning further

Making the decision to study can be a big step, which is why you'll want a trusted University. The Open University has 50 years’ experience delivering flexible learning and 170,000 students are studying with us right now. Take a look at all Open University courses.

If you are new to university level study, find out more about the types of qualifications we offer, including our entry level Access courses and Certificates.

Not ready for University study then browse over 900 free courses on OpenLearn and sign up to our newsletter to hear about new free courses as they are released.

Every year, thousands of students decide to study with The Open University. With over 120 qualifications, we’ve got the right course for you.

Request an Open University prospectus