Learn more about the advantages of test automation. Accelerate testing while improving product quality.

What is test automation?

Test automation refers to the automation of the test activities that serve to improve the quality of a hardware product. In many cases it is possible to automate manual testing procedures through programs and interfaces. Those tests can be executed arbitrarily many times (as well as at night time).

HILSTER Testing Framework (HTF)

We offer a testing framework that allows for the automation of every imaginable way of test automation. Learn more on our website or contact us directly through the contact form below.

Goals of test automation

Considering the growing complexity of most products and the ever shortening developing times it is becoming increasingly difficult to assure the quality of hardware as well as software products.

It is not uncommon to find 15 employees of a company testing a product for half a year before it is ready for release. This process has to be repeated for every iteration of the product.

Oftentimes there simply is not enough time to execute tests of this time extensively. The result is less testing.

Product quality suffers and customer satisfaction declines. The sum of the quality cost is higher than the cost of testing.

Quality cost is the result of a bad testing strategy and an errant assessment of the amount of work required for creating and executing the tests as well as maintaining them.

The development process can be accelerated dramatically with the help of test automation.

The initial investment in test automation is usually higher than a single manual test run. In most cases the advantages of test automation become nevertheless apparent almost immediately.

First of all automated tests run faster than manual tests. They are also repeatable and reproducible. Sporadic errors committed by humans when executing tests many times manually do not occur with test automation. Especially with products that require heavy maintenance test automation quickly pays dividends because every new test run does not add to the cost.

Test automation can already accompany the development process. That way, the proper functioning of the product is assured even during its creation.

Strategy of test automation

During the development process of hardware and software products the testing of different requirements requires differing amounts of effort.

It is therefore advisable to implement those tests first that benefit the product most and require the least amount of effort. As a general rule cost and benefit should always be weighed when deciding what tests to implement.

Optimizing quality, cost and speed

The goals of every product development process are product quality, cost and time. The quality cost rises the later an error is detected because the cost to fix it increases. An error that is detected early on in the development process can be fixed immediately. In contrast, an error that is not detected at all and only occurs with the customer, will result in even higher costs.

This is why test automation does not only increase the quality of your product through higher test coverage but also saves you money by uncovering errors at a point in time where they can be cheaply fixed as well as dramatically lowering the amount of time needed for a test run.

Once implemented tests can be repeated over and over again as so called regression tests. This assures that no recent changes to the product had a negative effect on older product functions.

The advantages of test automation clearly outweigh the cost of the initial one time investment.

Increase motivation and efficiency during the development process

The collective execution of manual tests takes month and is frustrating as well as susceptible to human errors. Once implemented, automated tests do not require any kind of interaction with the user. Furthermore tests repeatable without any kind of deviation from previous test runs. The time savings that result from automated testing can be reinvested into a higher and broader test coverage.

Increase test coverage

Instead of investing time and energy manually executing the same tests over and over again, test automation can achieve a much higher test coverage.

Especially in the case of regression tests or data driven tests, executing tests manually is neither effective nor fun.

Particularly data driven tests only have to be implemented once and can then be executed as often as one wants, either with other data or simulated data.

Test automation with HILSTER

HILSTER offers software for test automation.

With the HILSTER Testing Framework as foundation, we create product specific testing environments that efficiently support and accompany the development process.

Continue reading about test automation with HTF on the HTF product page.