Web usability is basically an approach to present your websites to the end- user in a clear-cut and concise manner so that he or she can access all the correct choices in an obvious way with a least possible effort.
It ensures consequences of actions by putting the most important thing in the right place on a web page and helps the surfers to intuitively relate the actions which he or she needs to perform on the web page. It does not demand for any specialized training or guidance and totally devoid of any kind of ambiguity.
We can spotlight the objectives of usability as given bellow:
Introduce the information to the user in a clear cut method.
Make sure the correct choice for the user in an obvious way.
Avoid any equivocal method like: clicking on delete/ purchase/ remove
Place the most important thing at the right place on a web page or a web application.
SomeWeb designand Usability Tips:
Pages shouldn't take 30 seconds to download.
Always make cross-platform test of your web pages, for HTML behaves differently in different browsers.
Don't use homepage' link on the homepage for it might cause for navigational confusion.
Use ALT tags for your graphics
Follow rules of web designing like: "blue for hypertext links" to help visitors easy to get your content.
Don't use the words like:"click here" or "Click" for a link.
Incorporate width and height attributes on your graphics to allow browsers to pre-allocate the appropriate quantity of space for every graphic on your page.
Don't use default link colors like: blue for unvisited links and purple for visited links.
Your web design approach should be KISS (keep it simple stupid)
Web content writing format should encourage scan ability. Use shorter sentences and short paragraphs, bulleted text and lots of sub-headings.
During your using frames for all hypertext links should have a Target="_Top" to attribute in their anchor tag.
Use contrastive colors for the text and background to get more readability and increase usability.
Keep title within 75 characters and use helpful and meaningful page titles to summarize page content. Always justify your text.
Home pages should be like a preface and would cover "What is this site all about?".
Avoid using all caps
Make it easy to navigate
The final important thing is that your site's navigation must answer the question "Where am I".