In addition to acknowledging that users have developed habits of interaction over the years, every well designed site should be accessible to the largest (target) audience possible. But accessibility goes farther than that.
Websites are a tool as well as communication channel, we must consider not only the demographic and psychographic profiles of our market, we must also think of very nuts and bolts things such as disabilities (visual impairment, dyslexia, deafness, colour blindness) and constraints (high-speed versus dial-up access, screen size, operating systems, and so on).
Accessibility features refer to various standards and commonalities that assist users by giving them what they expect, and what they need, to make their interaction successful and efficient. For more information on technical aspects of accessibility, please visit the World Wide Web Consortium Web Content Accessibility Guidelines 2.0.
One way of looking at the issue of accessibility is to think that websites should be easily read. The concept of readability captures the speed and efficiency with which information is consumed and processed. It can refer to navigability, various types of visual information (graphics, imagery, rich media, and to alternatives to rich media) in addition to written words.
Of course, some traditional graphical design issues are at work when designing a page. But online, there are far more rigorous constraints than there are on the printed page. One recent study by Jakob Nielsen suggests that there on a web page there should be no more than 28% of the content one would view on the printed page. According to this study, users spend an average of 4.4 seconds per 100 words.
What should this mean for a well-designed website? First, put your content creation machine on a strict diet. Say more with fewer words, use small graphics, bullet-points and bolded text to enhance the readability of the page. House your content in a navigation schema that makes it easy for text readers to explore.
Tuesday, May 6, 2008
Web Design Best Practices (part 2): Accessibility
Web Design Best Practices (part 1)
Clients often ask - heck, I often ask myself - what best practices should be followed when designing a website. I'm sorry to inform you that there is no formula for the perfect website. In fact, it could be argued that every website is as unique as the organization behind it.
That doesn't mean there aren't principles that should be adhered to (or at least acknowledged). I'll share some insights that should help as you consider what should be on your site, and how it should be designed: page layout; navigation; user-centred design; accessibility; how to improve your site through iterations; and features that should be included. I'm going to start with the complicated question of intentions.
When designing a website, people consider what they want to include in the site before they consider why elements are included. This is a mistake. The first, and most important feature of a well-designed website, is the user-friendly way in which the consistency of the organization’s business and communication objectives meet with the designed end-result. Put another way for the sake of clarity, this means that every element – from content, design, navigation and interactive features – must be considered in light of the organization’s intentions. Only those items that advance your goals should be included.
With the advent of social media, users have come to expect a broader range of tools available to them on websites. Many sites incorporate sound and video into their sites, and provide sophisticated feedback mechanisms, planning tools, easy-to-fill contact forms, enabling saving and forwarding page-level information, and access to tools such as live chatting. It is important to remember that interactive tools should always be used in response to an organization’s objectives. For example, where video and sound files may help one company sell more products, another organization may find a calendar tool is very valuable to respond to end users’ needs to form communities around common events.
This does not mean that every website is radically different from every other website. End users have developed expectations for how they interact with sites over the past decade of website usage. In terms employed by the user experience community, these are often referred to as “affordances”. For example, users expect there to be a “contact us” page on every website and that usually "contact us" is included in the site's header.
If there is one formula for a well-designed site, it would be: your communication and business intentions + your users' intentions = success. In other words, provide what you need to further your goals in a way that is easily grasped by your valuable and time-pressed end users.
