Articles

usability and accessibility (jkhendrick)

In Uncategorized on January 25, 2010 by art325b

Usability

I think that Jacob Nielsen has some interesting points. His website is perfect for his message, it is clear concise and includes no graphics. It clearly states all of his information, but it is very boring to look at, and I feel like the average person would lose interest very fast. His point about graphics just  wasting space, and costing more money is valid, but I feel like graphics are necessary to some forms of advertisement. I feel like his stance on usability is in fact too ridgid. Yes, text only will save you money, but will it sell your product?

“One benefit of the small number of graphics on this site is that I can serve a quarter million unique users per month and about 50 GB/month data transfer with a relatively cheap Web hosting account that covers both sites for $75/month. The cost of running the sites comes to 0.02 cents per user or 0.005 cents per pageview served.”

Another thing he touches on would be downloading speed. He talks about how people will not be interested if it takes too long to load the page.

“since many users still don’t have broadband, Web pages can be no more than 6 KB if they are to download in one second which is the required response time for hypertext navigation. Users do not keep their attention on the page if downloading exceeds 10 seconds, corresponding to 60 KB at modem speed. Keeping below these size limits rules out most graphics.”

Yes, this might be true about people losing interest so the number of graphics has to be take into consideration, but if people are looking for a product, they don’t want a block of text about said product. They want images that will pull them in and then maybe some information on the side. I feel like people lose interest with only text just as easily. They need something to bring them into whatever you are selling.

Accessibility

I feel like the w3c is trying to do a good thing by trying to make everything accessible to any person on the web. I think it is not too much trouble to provide simple alt text for images and content. It only takes a second, and allows people who cannot view the image to know what is going on on the page.

“When equivalent alt text is provided, the information is available to everyone to people who are blind, as well as to people who turned off images on their mobile phone to lower bandwidth charges, people in a rural area with low bandwidth who turned off images to speed download, and others. It’s also available to technologies that cannot see the image, such as search engines.”

the w3c is trying to make communication between people everywhere easier and more streamlined.

“The social value of the Web is that it enables human communication, commerce, and opportunities to share knowledge. One of W3C’s primary goals is to make these benefits available to all people, whatever their hardware, software, network infrastructure, native language, culture, geographical location, or physical or mental ability.”

the w3c is trying to make a broad standard for every device that can access the web.

“The number of different kinds of devices that can access the Web has grown immensely. Mobile phones, smart phones, personal digital assistants, interactive television systems, voice response systems, kiosks and even certain domestic appliances can all access the Web”

as more and more people join the web, it is even more important than ever to have easily accessible communication.

“he Web has transformed the way we communicate with each other. In doing so, it has also modified the nature of our social relationships. People now “meet on the Web” and carry out commercial and personal relationships, in some cases without ever meeting in person. W3C recognizes that trust is a social phenomenon, but technology design can foster trust and confidence. 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