Our methods explained - Part 1: Usability test

Procedure

The procedure for a usability test in the laboratory usually comprises the following steps:

1. Defining the objectives and test criteria: First, clear objectives are defined that are to be achieved during the test. The relevant criteria for evaluating usability are also defined, such as efficiency, learnability, accuracy and satisfaction.
2. Selection of test subjects: Representative users from the target group are selected to test the site or product so that the test results are meaningful and applicable to actual users.
3. Development of test tasks and scenarios: Realistic tasks and scenarios are created to reflect typical usage scenarios and allow test subjects to evaluate the product or website for usability.
4. Carrying out the test: The test subjects come individually to a laboratory room and carry out the defined tasks and scenarios under observation.  Screen recordings, eye-tracking or video recordings capture the interactions with the product.
5. Observation and data collection: Observations are made during the test and relevant data on the behavior of the test subjects, their reactions, errors and difficulties are recorded.
6. Analysis and evaluation of the results: The data collected in the usability test is analyzed and evaluated. This provides insights into user-friendliness and possible areas for improvement. Qualitative and quantitative analysis methods can be used.

Special features 

The special features of usability testing in the laboratory include:

• Controlled environment: Conducting the test in a laboratory environment leads to particularly comparable results, as it minimizes external interference and standardizes the test conditions.
• Real-time observation: During the test, it is possible to observe the test subjects directly. This makes it possible to immediately record their behavior, reactions and difficulties.
• In-depth insights: The usability test in the laboratory provides detailed insights into the actual use of the product, as the test subjects engage intensively and undisturbed with the test object. This enables such tests to identify specific potential for improvement.
• Validity and reliability: The control of the test conditions and the use of standardized protocols ensure a high validity and reliability of the results.

Advantages and benefits

The advantages and benefits of a usability test in the laboratory are

• Identification of problem areas: Direct observation of the test subjects enables usability weaknesses to be identified and targeted improvements to be made.
• Optimization of the user experience: The usability test in the laboratory makes it possible to specifically improve the user-friendliness of a product and ensure a positive user experience.
• Validation of design decisions: Testing prototypes or new functions in the lab validates design decisions and also checks their effectiveness.
• Improving customer satisfaction: Optimizing usability and user experience increases customer satisfaction and strengthens their loyalty to the product or brand.

Tools

Usability tests can take place remotely as well as in the lab. Common conference tools are suitable for this:

• MS Teams: All important functions are included. However, depending on the organization, there may be restrictions when sharing files. This is often not possible.
• Zoom: Zoom offers an ideal overall package for remote usability tests - waiting room, recordings, transcripts, file sharing. 
• Google Meet: Google Meet has the great advantage that it is free of charge. The most important functions are also included. 

In addition to the conference tools for remote testing, there are more and more tools for unmoderated usability tests. This variant of the usability test can be a very efficient alternative for a large sample and simple questions. Please contact us.