Perceivability

Through the principle of perceivability, we want to ensure that functions and information are presented in such a way that they can be noticed by every user. What is important here for us is the so-called Two-Channel Principle. This means that we make information perceivable via two different sensory channels.

Simply put, we ensure that:

• All information that can be perceived visually is also audible.
• All information that can be perceived audibly is also visible.
• We do not transport information solely through colors, in order to compensate for color blindness.
• If possible, we also support/render information tactilely.

In practice, we implement this, among other things, by:

• providing all images and graphics with alternative texts,
• making the duration for timed media modifiable,
• making text sizes adjustable,
• ensuring sufficient contrast for foreground and background or making foreground and background sounds distinguishable,
• or offering videos with subtitles.

Usability

So that users can interact with our IT solutions, we ensure that these are also usable for people with disabilities.

For us, this includes, among other things:

• We ensure keyboard operability, on which people with motor impairments or blindness are particularly reliant.
• We design time limits for individual interaction steps to be sufficient for all people.
• We refrain from flashing and blinking, in order to avoid seizures for people with epilepsy.
• We support orientation through clear and unambiguous link texts and through various navigation paths.
• We offer alternatives for pointer gestures or complex gestures.

Understandability

We do not underestimate the principle of understandability, even outside the context of IT accessibility. We ensure that the content is easily readable and understandable for the widest possible audience. And this applies even when it is read aloud. Therefore, we use language that is as clear and simple as possible and provide explanations for technical terms, unusual expressions, or abbreviations when needed, so that even people without subject-specific knowledge, people with a different native language, or people with cognitive impairments can understand the content well. For us, the principle of understandability also includes the predictability of the user interface with consistent presentation and navigation, as well as support in avoiding input errors.