Consolidating the iso usability models
The design of this diversity of applications so that they actually achieve their intended purposes in term of ease of use is not an easy task.
Although there are many individual methods for evaluating usability; they are not well integrated into a single conceptual framework that facilitate their usage by developers who are not trained in the filed of HCI.
Also called as Web in short, are built with certain purpose, targeting certain group of users, to fulfill an objective.
That objective could be advertisement, information, news or something else.
Usability is increasingly recognized as an important quality factor for interactive software systems, including traditional GUIs-style applications, Web sites, and the large variety of mobile and PDA interactive services.
Unusable user interfaces are probably the single largest reasons why encompassing interactive systems – computers plus people, fail in actual use.
It was originally titled Ergonomic requirements for office work with visual display terminals (VDTs).It then explains how these various models can be unified into a single consolidated, hierarchical model of usability measurement.This consolidated model is called Quality in Use Integrated Measurement (QUIM).Usability is the ease of use and learnability of a human-made object.The object of use can be a software application, website, book, tool, machine, process, or anything a human interacts with.
They are termed to be successful if they can fulfill those objectives efficiently.