Schengen visa is an authorisation issued by a Schengen State for:

• A transit through or an intended stay in the territory of the Schengen States of a duration of no more than 90 days in any 180 days period ("short stay visa"),
• A transit through the international transit areas of airports of the Schengen States ("airport transit visa").

Generally the visa issued allows you to visit any of the Schengen States during the same trip, within the validity of the visa.

A Schengen visa is not appropriate, if you wish to remain in the Schengen area for longer than 90 days, take up employment or establish a business, trade or profession.