Published 28 May 2015
These principles are from the book A Web for Everyone. They act as a framework, based on established design principles, to identify guidelines and strategies for incorporating accessibility into any website or application throughout the design and development process.
I highly recommend reading the book as each of these principles has a set of guidelines that are thoroughly covered.
Source: A Web for Everyone
People are the first consideration, and sites are designed with the needs of everyone in the audience in mind.
People enjoy products that are designed for the audience and guided by a defined purpose and goals.
People feel confident using the design because it is stable, robust, and secure.
People can use the product across all modes of interaction and operating with a broad range of devices.
People can navigate a site, feature, or page following self-explanatory signposts.
People can perceive and understand elements in the design.
People can read, understand, and use the information.
People can understand and use information contained in media, such as images, audio, video, animation, and presentations.
People can focus on the experience and their own goals because the product anticipates their needs.