Michael Gaigg: Über UI/UX Design

17Jun0

Free E-Book: GIS in the Cloud

Posted by Michael Gaigg

GIS in the Cloud

GIS in the Cloud

Matt Artz blogs about Esri's latest release by Victoria Kouyoumjian, Esri’s IT Strategies Architect: "GIS in the Cloud: The New Age of Cloud Computing and Geographic Information Systems".

Download: Download free e-book

Topics covered in the e-book include:

  • What Is Cloud Computing?
  • Cloud Service Models
  • Cloud Benefits
  • Public versus Private Cloud
  • Risks in the Cloud
  • ArcGIS and the Cloud
5Mar0

Benefits & Principles of User-Centered Design

Posted by Michael Gaigg

We, the people, have been around for quite some years now. Computers, software, applications and the web not so much. Therefore it is clear that applications have to adjust to the people and not the other way round.

Many design principles have developed throughout the decades, but the main difference of user-centered design to others is that

UCD tries to optimize the user interface around how people can, want, or need to work, rather than forcing the users to change how they work to accommodate the system or function.

Purpose of UCD

UCD answers questions about users and their tasks and goals, then use the findings to make decisions about development and design.

UCD seeks to answer the following questions:

  • Who are the users of the application?
  • What are the users’ main tasks and goals?
  • What are the users’ experience levels with the application?
  • What functions do the users need from the application?
  • What information might the users need, and in what form do they need it?
  • How do users think the application should work?

Benefits & Return of Investment

  • Increased usability
    • Higher degree of customer satisfaction
    • Continued business
    • Higher revenues
  • Project management optimization
    • Focus on important functionality early
    • Unforeseen user requirements
  • Reduced costs
    • Training costs
    • Help-Desk calls and service costs

UCD Principles

  • Focus on users’ needs, tasks and goals
  • Spend time on initial research and requirements
    • Identify your target audience and observe them (accomplishing their tasks)
    • Let users define product requirements
  • Emphasis on iterative design process
  • Evaluate system on real target users

Summary

Nobody could state it simpler than Susan Dray: "If the user can’t use it, it doesn’t work".

7Oct0

What is Accessibility?

Posted by Michael Gaigg

The purpose of web pages is to interactively display information. The Hypertext Markup Language was designed to encode meaning rather than appearance. Therefore

Accessibility is the extent of access to information on a webpage through user agents (e.g. browsers, screen readers,…) which translate HTML into hypertext structures (links, headers, tables, forms,…) in order to give the users a surplus value.

“As long as a page is coded for meaning, it is possible for alternative browsers to present that meaning in ways that are optimized for the abilities of individual users and thus facilitate the use of the Web by disabled users. Those disabilities are:

  • Visual Disabilities
  • Auditory Disabilities
  • Motor Disabilities
  • Cognitive Disabilities” [NIELSEN96]

Since Web pages are highly visual and interactive the most affected groups as far as accessibility is concerned are the visual disabled, i.e. blind users or users with other visual disabilities like color blindness and users with motor disabilities using alternative input devices or sometimes even just the keyboard instead of the mouse.

Everybody benefits!

In the same way a sidewalk curb is necessary for wheelchair accessibility it also benefits parents with strollers, children with rollerblades and elderly persons trying to cross the street. The same is true for web pages. Designing for accessiblity will not only benefit users with disabilities but will also increase your:

  • Market Share Benefits
    • SEO (search engine optimization)
    • Repurpose
    • Literacy
    • Bandwidth
  • Technical Efficiency Benefits
    • Maintenance
    • Server Bandwidth