KEDDEHSYSTEMS
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Our practice

Useful by design.
Open to scrutiny.

Good interfaces help people understand the work, make informed decisions and recover when something goes wrong.

Start with the task.
Evaluate the experience.

We frame the audience and context, examine existing workflows, develop alternatives and test representative tasks. Visual direction serves the content: clear hierarchy, deliberate imagery and readable technical depth.

These are design commitments and evaluation targets. This page does not claim ISO certification or completed accessibility conformance.

Understandable interaction

ISO 9241-110 informs predictable interaction and recovery. It does not prescribe our aesthetics or corporate identity.

ISO 9241-110:2020

Clarity, feedback and control

Jakob Nielsen’s usability heuristics inform familiar language, visible system feedback, consistent controls and recovery. In this experience, the opening stays focused, technical depth is optional and motion has a persistent pause control.

Nielsen Norman Group: 10 usability heuristics

Accessible experiences

WCAG 2.2 AA is our evaluation target. Authoring tools also need to help editors create accessible pages, the distinct concern of ATAG.

WCAG 2.2 · ATAG 2.0

Media that explains the work.

Photography

Real people, real working context and genuine product captures. Conceptual artwork is identified separately.

Film

Purposeful demonstrations with playback controls, captions and appropriate descriptive alternatives. The explanation remains available as text.

Evaluation

Assess comprehension, task completion, errors and recovery across devices and input methods. Record findings and revise the design.

W3C guidance for planning accessible media

Discover what the architecture makes possible.

Learn the architecture

UNDERSTAND THE ARCHITECTURE

Make complexity legible.

An engineered surface helps people understand where they are, what matters and what happens next.

01

Use the visual to explain the system

Typography, diagrams and motion should establish relationships and hierarchy. Observer movement represents a changing view; a live execution visual must derive its state changes from the represented process. Those meanings should be distinguishable.

02

Build the full interaction

A control needs a clear action, a visible result and a way to recover when the action cannot complete. Navigation should preserve orientation, including a dependable route home from a deep workspace.

03

Evaluate the experience in context

Check comprehension and task completion, not just whether a button exists. Keyboard use, smaller screens and reduced-motion preferences are part of the experience. Field performance and actual user outcomes require observation after delivery.

What makes a surface high calibre?

Its visual ambition supports accurate understanding and useful action. The design, content and behaviour work together rather than asking decoration to hide a missing workflow.

Define the audience’s task and use that task to judge the design.