Editing Web usability (section)

==Definition and components==

Web usability includes a small [[learning curve]], easy content exploration, findability, task efficiency, user satisfaction, and automation. These new components of usability are due to the evolution of the Web and personal devices. Examples: automation: auto fill, databases, personal account; efficiency: voice commands ([[Siri]], [[Amazon Alexa|Alexa]], and other [[Virtual assistant|artificial intelligence assistants]]); findability. The number of websites has surpassed 1.5 billion<ref name=internetlivestats>{{cite web|url=https://www.internetlivestats.com/total-number-of-websites/|title=Total number of Websites - Internet Live Stats|website=www.internetlivestats.com|access-date=2019-06-08}}</ref> thus increasing the need for well-designed websites that serve their users as best as possible in the constantly more competitive market. With good usability, users can find what they are looking for quickly. With the wide spread of mobile devices and [[Wireless Internet|wireless internet access]], companies are now able to reach a global market with users of all nationalities at any time and almost any place in the world. It is important for websites to be usable regardless of users' language and culture. Most users in [[Developed country|developed countries]] conduct their personal business online: banking, studying, errands, etc., which has enabled people with disabilities to be independent. Websites also need to be accessible for those users.<ref name=DaSie2014>{{cite web|last1=Da Sie|first1=Chris|title=5 Components Of Usability|url=http://www.chrisdasie.com/myposts/5-components-of-usability|website=www.chrisDasie.com|date=19 February 2014|access-date=13 December 2017}}</ref>

The goal of web usability is to provide user experience satisfaction by minimizing the time it takes to the user to learn new functionality and page [[navigation system]], allowing the user to accomplish a task efficiently without major roadblocks, providing the user easy ways to overcome roadblocks, and fixing errors and re-adapting to the website or application system and functionality with minimum effort.

===ISO approach===
According to [[ISO 9241]] (Ergonomic Requirements for Office Work with Visual Display Terminals), usability is "the extent to which a product can be used by specified users to achieve specified goals with effectiveness, efficiency and satisfaction in a specified context of use". Therefore, web usability can be defined as the ability of web applications to support web-related tasks with effectiveness, efficiency and satisfaction. Effectiveness represents [[Accuracy and precision|accuracy]] and completeness when users achieve a specified goal. Efficiency is resource cost in relation to the accuracy and completeness. Satisfaction is the comfort and acceptability of use.<ref name="Mendes et al 2006">{{cite book|last1=Mendes|first1=Emilia|last2=Mosley|last3=Matera|first3=Maristella|last4=Rizzo|first4=Francesca|last5=Carughi|first5=Giovanni T.|url=https://books.google.com/books?id=id829q6RljsC|title=Web Usability: Principles and Evaluation Methods|journal=Web Engineering|date=2006|pages=143–180|oclc=300263327|doi=10.1007/3-540-28218-1_5|isbn=9783540281962|citeseerx=10.1.1.462.3115}}</ref>