Usability and accessibility plays an important role in the popularity of an application. An application might be robust with many functions and features, but that should be conveyed to the user. Many high-tech gadgets are coming in the market. How do customers (users) learn about it?
What attracts is the look and feel of the product, and how useful it is. Take the case of Google, where most of the world's search is done. Yes, its technology is complex, but its interface is simple.
Contributed by Sujoy Dutta