Please help us and send your questions, proposals, comments etc. Usability means that the people who use the product can do so quickly and easily to accomplish their own tasks. People use products to be productive. Users are busy people trying to accomplish tasks.
Users decide when a product is easy to use.
To develop usable products, therefore, you have to understand user's performance goals. Users are busy people trying to accomplish tasks People connect usability with productivity, because no one get paid for time spend just sitting at a computer. They get paid for processing invoices, or for noticing and resolving alarms an the computer network, or for analyzing samples in a laboratory machine. Users are concerned with productivity and with accomplishing their own goals at home as well as at work. You may want to use your VCR to record a program so that you can watch it later.