usable

adj. utilizable, practical

USable is a special idea contest to transfer US American ideas into practice in Germany. USable is initiated by the German Körber-Stiftung (foundation Körber). It is doted with 150,000 Euro and awarded every two years. All persons which know Germany and the USA from their own experience can take part in the contest. The nationality of the contestants does not matter.
See more at Wikipedia.org...

Usability is a term used to denote the ease with which people can employ a particular tool or other human-made object in order to achieve a particular goal. Usability can also refer to the methods of measuring usability and the study of the principles behind an object's perceived efficiency or elegance.
See more at Wikipedia.org...

Adjective
1. able to be put to use; "usable byproducts"
(synonym) useable
(similar) useful, utile
2. fit or ready for use or service; "the toaster was still functional even after being dropped"; "the lawnmower is a bit rusty but still usable"; "an operational aircraft"; "the dishwasher is now in working order"
(synonym) functional, useable, in working order(p), operable, operational
(similar) serviceable
3. convenient for use or disposal; "the house is available after July 1"; "2000 square feet of usable office space"
(synonym) available, useable
(similar) disposable

adj. usable; wearable

(a.)
Capable of being used.