Design Principles - Speaker Deck

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principles. adactio.com

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design principles how?

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design goals why?

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design patterns what?

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goals principles patterns

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...to form a more perfect Union, establish Justice, insure domestic Tranquility, proide for the common defence, promote the general Welfare, and secure the Blessings of Liberty to ourseles and our Posterity —e United States Constitution goals

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...that all Men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness. —e Declaration Of Independence principles

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patterns one person, one vote checks and balances

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Soware, like all technologies, is inherently political. Code inevitably reﬂects the choices, biases and desires of its creators. —Jamais Cascio

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rough consensus running code &

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CSS maintainability modularity readability longevity interoperability simplicity implementibility minimum reduncancy learnability extensibility efficiency device-independency accessibility

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selector { property: value; }

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be conservative in what you send; be liberal in what you accept.

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HTML

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...guidance for the design of HTML in the areas of compatibility, utility and interoperability. —HTML Design Principles

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solve real problems

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(X)HTML HTML5

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Paragraph text.

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degrade gracefully

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input type="number" input type="search" input type="range" input type="email" input type="date" input type="url"

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input type="number"

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input type="search"

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input type="search" placeholder="e.g. salad or fish"

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goal backwards compatibility

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principle progressive enhancement

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pattern

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What’s your favourite browser? Safari Chrome Opera Firefox Other If other, please specify:

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What’s your favourite browser? Safari Chrome Opera Firefox

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What’s your favourite browser? Safari Chrome Opera Firefox Other If other, please specify:

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What’s your favourite browser? Safari Chrome Opera Firefox Other If other, please specify:

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Flash HTML5 plug-in video

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download

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download

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download

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download 1 2 3 4 5

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e value of a network is proportional to the square of the number of connected users of the system (n²). —Robert Metcalfe principle

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JavaScript

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principle unobtrusive JavaScript

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Find stuﬀ and do stuﬀ to it. —juery

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selector { property: value; }

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$(selector).event ({ action; });

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pattern

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antipattern

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dark patterns

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goals principles patterns

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...to organize the world’s information and make it universally accessible and useful. —Google Corporate Information goals

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Simplicity is powerful. Every millisecond counts. —Ten principles that contribute to a Googley user experience principles

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...to empower and engage people around the world to collect and develop educational content. ...to disseminate it eﬀectively and globally. —Wikimedia Foundation goals

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Have a neutral point of view. Interact in a respectful and civil manner. —Wikipedia:Five pillars principles

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...allow anyone to easily publish, manage and organize a wide variety of content on a website. —About Drupal goals

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Privilege the Content Creator. Design for the 80%. —Drupal 7 User Experience Project principles

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A web of data. —Semantic Web goals

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Decompose any type of knowledge into small pieces. —RDF principles

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Humans ﬁrst, machines second. —Microformats principles

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principles progressive enhancement unobtrusive JavaScript be conservative in what you send; be liberal in what you accept.