Abstract: The invention relates to a method for extending an application in a client device. The method comprises forming a connection from the client device to a server in order to access a document vault in the server; receiving one or more extension elements from the document vault wherein said one or more extension elements comprise software logic; executing the software logic in said client device in order to adapt a document management application as an extension of a file management system of the client device according to the one or more extension elements.

Abstract: The invention relates to a method for a computer system storing electronic objects being defined by metadata items. The method comprises deriving access rights from one or more security components originating from respective metadata items of at least one object, and determining the effective access rights for the object by means of the security components. The invention also relates to a method for a computer system storing electronic objects being defined by metadata items, wherein access rights for an object are determined by means of one or more pseudo-users. The invention also relates to an apparatus, a computer system and a computer readable medium comprising a computer program stored therein for carrying out the methods.

Abstract: The invention relates to a document management system and a method therein. In order to perform co-authoring of an electronic object between at least two devices, the method comprises performing a reservation of an electronic object from a server for co-authoring from a first client device, writing the electronic object in modifiable form to a co-authoring folder in a common location accessible by the first client device and at least one other device; providing an access to at least one other device to the co-authoring folder; and when co-authoring of the electronic object is finished, reading the electronic object from the co-authoring folder and writing the electronic object to the server.

Abstract: The invention relates to a document management system and a method therein. In order to perform co-authoring of an electronic object between at least two devices, the method comprises performing a reservation of an electronic object from a server for co-authoring from a first client device, writing the electronic object in modifiable form to a co-authoring folder in a common location accessible by the first client device and at least one other device; providing an access to at least one other device to the co-authoring folder; and when co-authoring of the electronic object is finished, reading the electronic object from the co-authoring folder and writing the electronic object to the server.

Abstract: The invention relates to a method for extending an application in a client device. The method comprises forming a connection from the client device to a server in order to access a document vault in the server; receiving one or more extension elements from the document vault wherein said one or more extension elements comprise software logic; executing the software logic in said client device in order to adapt a document management application as an extension of a file management system of the client device according to the one or more extension elements.

Abstract: The invention relates to a method for a computer system storing electronic objects being defined by metadata items. The method comprises deriving access rights from one or more security components originating from respective metadata items of at least one object, and determining the effective access rights for the object by means of the security components. The invention also relates to a method for a computer system storing electronic objects being defined by metadata items, wherein access rights for an object are determined by means of one or more pseudo-users. The invention also relates to an apparatus, a computer system and a computer readable medium comprising a computer program stored therein for carrying out the methods.