let’s dev GmbH & Co. KG - The brand for groundbreaking custom software let’s dev GmbH & Co. KG - The brand for groundbreaking custom software

The brand for groundbreaking
custom software

Pioneering. Experienced. Ever exploring.


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Usability Testing

let’s dev - The brand for groundbreaking custom software

Usability Testing is a crucial step in the UX design process, involving real users testing the software under real conditions. This method helps identify weaknesses and uncover improvement opportunities. The three main methods are:

Moderated Usability Testing involves a moderator guiding the process and assigning specific tasks to participants. The moderator observes participants' behavior and can ask questions to gain insights into their thoughts and experiences. In unmoderated Usability Testing, participants are tested without direct guidance or supervision from a moderator. They receive tasks and instructions to perform independently while their behavior and reactions are automatically recorded. Remote Usability Testing allows participants to conduct tests from a remote location without being physically present. This is done through specialized software or tools that enable participants to use the product over the internet while recording and analyzing their interactions.

These Usability Testing methods offer various advantages and disadvantages and can be selected based on the project's requirements and goals. Overall, Usability Testing is an essential practice to ensure that a product or application provides an optimal user experience and meets the needs of users.

Usability Testing

Our services
at a glance

We program customized apps and advise our customers on all topics related to app development. Our services are perfectly coordinated and based on experience from national as well as international projects.


Usability describes the extent to which a system, product or service can be used by specific users in a specific context of use in order to achieve defined goals effectively, efficiently and satisfactorily. Usability is particularly relevant in relation to interfaces between humans and technology or humans and machines. In other words, in the development of digital services such as apps and websites

Usability focuses on the three factors of effectiveness, efficiency and satisfaction. Effectiveness describes the accuracy and completeness with which users achieve a certain goal. Efficiency is the amount of effort required to achieve the respective goal in relation to accuracy and completeness. Satisfaction is described in terms of usability as freedom from impairments and positive attitudes toward the use of the product.

We make it simple

Software makes life easier. It makes it easier to organize, communicate, work, sell, entertain. That's exactly what we do at let's dev: We transform complex topics and processes into direct, structured interaction. Because we combine a lot of experience with even more curiosity, we achieve trend-setting and high-quality results. This makes let's dev the brand for groundbreaking custom software.

Contact us!

2 Locations
Karlsruhe & Hamburg


let’s dev GmbH & Co. KG

Alter Schlachthof 33

76131 Karlsruhe

+49 721 26 67 65 0


let’s dev GmbH & Co. KG

Eimsbütteler Chaussee 21

20259 Hamburg

+49 40 60 77 922 0