At Excellone Technologies, we understand that Usability is one of the most critical factors for the success of your online business. If your website or eCommerce store is difficult to use, people will simply leave it and go to your competitors. If your website fails to clearly state what your business offers and what users can do on the site, people will again leave. We believe that the first law of eCommerce is that if users cannot find your product, they cannot buy it either. And we ensure that all websites and apps that we build score very high on Usability. And good usability certainly affects user experience in a positive way.
With a view to maximising the Usability of the websites and mobile apps that we build, we perform extensive user testing. We organise representative users, such as customers for an eCommerce site or users for a mobile app and observe them performing representative tasks with the design. After studying how easy it was for the users to use the site or app and the areas where they had difficulties with the user interface, we redesign and improve the screens. We typically run up to seven user tests to identify and resolve a design's most important usability problems, making sure that your website or app is most easily usable by your customers.
Usability applies to all tools used by people - both digital and non-digital devices. Although Usability is a subset of user experience, it is not wholly contained and the part of Usability that intersects with user experience design is the one relating to people's ability to use a system or an application.
Usability can be viewed as a quality attribute that assesses how easy user interfaces are to use and the following components serve to measure it :
It represents whether first time users can perform basic tasks easily on the website or app the first time they interact with the design.
Efficiency measures how quickly users can perform the tasks correctly after they have become familiar with the design.
This deals with the ease with which returning users can re-establish proficiency, after they return to the design after a long period of absence.
Errors measure the number and severity of the mistakes that users make, and how easily the users can correct the errors.
Perhaps the most important of all, satisfaction measures how pleasant or unpleasant the users found it to use the design.