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Glossary term References
Ubiquitous display

is a non-desktop display system used to display VM applications, in a way that the application content appears to be blended in a real environment or space

Deliverable 2.1. 2014.
Un-versioned Repository

A central place in which an aggregation of data is kept and maintained in an organized way. In the general sense this is a data directory that does not keep version information and previous revisions. In this way the user edits cannot be tracked and edited. Example are: WebDav, Dropbox,  FTP.

Deliverable 2.1. 2014.

can be defined as 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 (ISO, 1998). Usability of an interface is usually associated with five parameters (ISO, 1998; Nielsen, 1993), derived directly from this definition:

1) easy to learn: the user can get work done quickly with the system, 2) efficient to use: once the user has learnt the system, a high level of productivity is possible, 3) easy to remember: the casual user is able to return to using the system after some period without having to learn everything all over again,
4) few errors: users do not make many errors during the use of the system or if they do so they can easily recover them, 5) pleasant to use: users are subjectively satisfied by using the system; they like it.


ISO 9241-11. International Organization for Standardization , 1998.
User Experience

User experience is how a person feels when interfacing with a system. The system could be either a website interface or a web application, desktop installation or finally a mobile product. It is generally characterized by main features related to human-computer interaction (HCI) disciplines. According to the ISO definition user experience includes all the users' emotions, beliefs, preferences, perceptions, physical and psychological responses, behaviors and accomplishments that occur before, during and after use.

9241-210, International Organization for Standardization ., vol. 9241-210. International Organization for Standardization , 2009.
User interface design

the process of developing any technical tool with focus on usability, [user experience] and interaction. A user interface design process involves a wide array of activities, from user research to graphic design

Deliverable 2.1. 2014.
User interface metaphor

A set of visuals, actions and procedures that help a user understand a target domain (e.g. a computer) by exploiting
Knowledge that the user has of a source domain (e.g. office work). One of the most famous user interface metaphors is the desktop metaphor, which introduced the idea that working with a computer is like working at a desktop with folders, a file cabinet, a trash bin etc. Even though frequently criticized for being outdated and for hindering the development of new innovative user interface paradigms, user interface metaphors remain a fundamental component of most modern operative systems.

Deliverable 2.1. 2014.

European Union Seventh Framework is a Network of Excellence. The research leading to these results has received funding from the European Community's Seventh Framework Programme (FP7 2007/2013) under the Grant Agreement 270404.