iOS Human Interface Guideline

1. IOS Human Interface Guidelines

2. What are User Interface guidelines for ?
To help developers design the best possible user interface & user experience.
User Interface
A connection between equipment and people, which help people interact
with the system.
User Experience
The User Experience is how people feel while they do..

3. What does a good interface have ?
ability to handle tasks more efficiently
Good
Interface
ease of use intuitiveness

4. Types Of User Interfaces
Metaphor
GUI
Exploratory
Multi-touch
NUI
Gesture, Motion

5. Positive User Experience Principles
fast
Easy
Clear

6. Key point for good Application development
1.Beauty- Aesthetic integrity: Good balance of the appearance
functionality of the interface .
- Focus is ALWAYS on content, but without a decent quality of
the app-artwork, the content will not be easily consumable.
2.Generosity - share + consume
- Let your app interact with other apps.

7. Key point for good Application development
3.Ubiquity- app should be more than an icon; i.e. put a widget(It's a
small application that can be installed and executed within
a web page by an end user) on the home screen about an
interesting feature.
4.Utility - be useful, be interesting, try to be the both!

8. Technical Information on IPhone
• Status Bar - at the upper edge
- Display the status bar as much as possible
• Navigation Bar – below the status bar
Tool Bar – at the bottom edge
• Tab Bar – at the bottom edge
• Make the minimum size of a tappable element - iPhone 44x44px,
iPad 66x66px or 88x88px

9. Screen sizes of IOS-based devices
Note: Pixel is the appropriate unit of measurement to use when discussing the size of a device
screen or the size of an icon you create in an image-editing application. Point is the appropriate
unit of measurement to use when discussing the size of an area that is drawn onscreen.
On a standard-resolution device screen, one point equals one pixel, but other resolutions might
dictate a different relationship. On a Retina display, for example, one point equals two pixels

10. Most Important Information On IPhone
• User see one screen at a time (an app has a single window but can have
multiple.)
• Users / Target : Determine the main purpose of the App.
• Create an App definition statement: Determine who your target is and
what the main function of your App
is, and how it benefits them.
• Orientation can change, landscape orientation should be both-sided.
• Buttons / Target sizes : Create a user friendly amount of space between
buttons (iPhone 44x44px, iPad 66x66px or
88x88px)

11. Most Important Information On IPhone
• Add physicality and realism (the voice recorder may look like a real
microphone)
• Do not fill the form with a lot of elements.
•Do not ask a lot of questions (regarding updates, saving etc.)
•Icons : app & store icons + launch images required.
•Start instantly.
•Always be prepared to stop.
•Never quit an app programmatically.

12. References
IOS Human Interface Guidelines
http://developer.apple.com/library/ios/#documentation/userexperience/co
nceptual/mobilehig/Introduction/Introduction.html#//apple_ref/doc/uid/TP
40006556-CH1-SW1
IPHONE User Interface Guidelines
http://www.upsidelearning.com/blog/index.php/2010/06/24/iphone-user-
interface-guidelines-part-i/
IOS Human Interface Guidelines
http://www.id-design.ca/2011/08/16/ios-human-interface-guidelines-
summary/