Direct Manipulation · The direct manipulation of onscreen content engages people and facilitates understanding. Users experience direct manipulation when they rotate the device or use gestures to affect onscreen content. Through direct manipulation, they can see the immediate, visible results of their actions.

Apple

Direct Manipulation

Apple Human Interface Guidelines

Apple design principles

Design

Apple

Guidelines

iOS

Human interface

Torsten Caspar

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Clarity · Throughout the system, text is legible at every size, icons are precise and lucid, adornments are subtle and appropriate, and a sharpened focus on functionality motivates the design.

Apple

Clarity · Negative space, color, fonts, graphics, and interface elements subtly highlight important content and convey interactivity.

Apple

Deference · Fluid motion and a crisp, beautiful interface help people understand and interact with content while never competing with it. Content typically fills the entire screen, while translucency and blurring often hint at more.

Apple

Deference · Minimal use of bezels, gradients, and drop shadows keep the interface light and airy, while ensuring that content is paramount.

Torsten Caspar

Depth · Distinct visual layers and realistic motion convey hierarchy, impart vitality, and facilitate understanding. Touch and discoverability heighten delight and enable access to functionality and additional content without losing context. Transitions provide a sense of depth as you navigate through content.

Apple

Aesthetic integrity · It represents how well an app’s appearance and behavior integrate with its function. For example, an app that helps people perform a serious task can keep them focused by using subtle, unobtrusive graphics, standard controls, and predictable behaviors.

Apple

Aesthetic integrity · An immersive app, such as a game, can deliver a captivating appearance that promises fun and excitement, while encouraging discovery.

Torsten Caspar

Consistency · A consistent app implements familiar standards and paradigms by using system-provided interface elements, well-known icons, standard text styles, and uniform terminology. The app incorporates features and behaviors in ways people expect.

Apple

Feedback · It acknowledges actions and shows results to keep people informed. The built-in iOS apps provide perceptible feedback in response to every user action.

Apple

Feedback · Interactive elements are highlighted briefly when tapped, progress indicators communicate the status of long-running operations, and animation and sound help clarify the results of actions.

Apple

Metaphors · People learn more quickly when an app’s virtual objects and actions are metaphors for familiar experiences—whether rooted in the real or digital world.

Torsten Caspar

Metaphors · They work well in iOS because people physically interact with the screen. They move views out of the way to expose content beneath. They drag and swipe content. They toggle switches, move sliders, and scroll through picker values. They even flick through pages of books and magazines.

Torsten Caspar

User Control · Throughout iOS, people—not apps—are in control. An app can suggest a course of action or warn about dangerous consequences, but it’s usually a mistake for the app to take over the decision-making. The best apps find the correct balance between enabling users and avoiding unwanted outcomes.

Apple

User Control · An app can make people feel like they’re in control by keeping interactive elements familiar and predictable, confirming destructive actions, and making it easy to cancel operations, even when they’re already underway.

Apple

Soon the child learns that there are strangers and ceases to be a child.

Max Muller

Even though I am signed to an American label, I want Australia to fall in love with my music because if it doesn't work here, it won't work anywhere.

Conrad Sewell

My goal was never to sell many records.

Chuck Mangione

I've got a particular way of writing novels, and that carries over into the way I write comics and games, too. I'm a news journalist by background, so I approach everything as reporting - I treat it as real, I ask the questions I'd ask in a real situation, and I let the characters speak for themselves.

Karen Traviss

I'm not specifically attached to anything other than trying to, in my personal life, fight against where I see right wing thinking. Whether it be around my dinner table or on the street or somebody reading the New York Post.

Janeane Garofalo

As long as I'm needed. I'll be ready to serve. I look forward with optimism. We need the Jews here. Move to Israel! Move to Israel!

Ariel Sharon

An abuser isnt abusive 247. They usually demonstrate positive character traits most of the time. Thats what makes the abuse so confusing when it happens and what makes leaving so much more difficult.

Miya Yamanouchi

I would really have liked to have gone to Broadway with 'A Streetcar Named Desire.' I was proud of that.

Cate Blanchett

If operating in a network environment, do not place public domain or shareware programs in a common file-server directory that could be accessible to any other PC on the network.

John McAfee

One only dies once, and if one does not die well, a good opportunity is lost and will not present itself again.

Jose Rizal

True translation is transparent: it does not obscure the original, does not stand in its light, but rather allows pure language, as if strengthened by its own medium, to shine even more fully on the original.

Walter Benjamin

I think team sports probably teach you more about giving - about being unselfish and being flexible.

Chris Evert

I'm inspired to do music. I really can't stop unless I stop being inspired.

Ziggy Marley

That's really important to me - creating moments that last forever.

Jeff Hardy

I have a very normal life. I go to the grocery store, I go to Target. I don't have an assistant, I don't have an entourage.

Angela Kinsey

I'm not patient at all. I avoid writer's block by writing. I power through with a bad version, so I can move on, and usually once I've gotten to the next scene, I'll discover what was missing from the bad version scene. Then I can easily rewrite it to get back on the right path.

Anders Holm

Let’s get a little crazy here.

Bob Ross

People are stupid. There's a lot of dumb stuff that's successful.

Adam Carolla

I mean, my people were very, very simple. They were peasant people, you know?

James Earl Jones

A most useful approach to meditation practice is to consider it the most important activity of each day. Schedule it as you would an extremely important appointment, and unfailingly keep your appointment.

Roy Eugene Davis

I don't think nostalgia is a healthy modality. But nostalgia and a sense of history are not the same thing. Nostalgia is a dysfunction of the historical impulse, or a corruption of the historical impulse.

William Gibson

When I leave the car park at Melwood, I try and become a completely different person. I try to get away from it. You have got to. Otherwise you end up like Jamie Carragher - obsessed!

Steven Gerrard

Death not merely ends life, it also bestows upon it a silent completeness, snatched from the hazardous flux to which all things human are subject.

Hannah Arendt

His ears were often the first thing to catch my tears.

Elizabeth Barrett Browning