Usability Engineering: Usability and User Experience Goals with Sample Applications

Usability and User Experiences Goals

Usability answers the question, "Can the user accomplish their goal?"(Spool, 2007).

User experience answers the question, "Did the user have as delightful an experience as possible?" (Spool, 2007).

Figure 1. Morville's user experience honeycomb

Usability has different kinds of theories but all the theories try to achieve following goals.

Here are some examples applications two of which meets appropriate usability and user experience goals, and two of which does not.

Its search box effectively evokes auto-complete and correct suggestions to the users.
Simple user interface that is easily memorable to its features.
Google logo design is attractively and relatively updated on world's remarkable dates.
Navigation is well designed to other google apps

Figure 2. Simple UI design

Figure 3. Auto-complete suggestions for searching keywords

Figure 4. Correction of suggestions for searching keywords

It has a good search option, sharing’s, events and photos as the news feed,Chat, Notifications, check in facility, create events,increase effectiveness.
Navigation is well designed and its features are clearly expressed and easy to remember.
It has the privacy control, report and block harmful friends and posts, secure authentication increase the safety.
Chatting, gaming Sharing photos increase the user's satisfaction

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It has less effectiveness as tasks can’t be completed accurately and not provided required information.
Application error leads for less satisfaction.
Not providing full functionalities leads for less motivation.
Not providing informative error messages leads for less helpfulness.

Example -01: Delivery order sometimes encounters error message