Abstract: The invention relates to a method for generating a user interface of a network node. An application is structured into a core application part responsible to handle data objects and a viewer/controller application part responsible to display said data and to initiate actions on said data, wherein said viewer/controller application part is formed by said user interface. A screen mask creating module (240) retrieves screen mask configuration data (320) and widget configuration data (310). A widget creating module (230) generates at least one user interface component (10-18; 410) on the basis of one ore more component pattern (411, 412). A screen mask of said user interface is generated y said screen mask creating module (240), wherein said screen mask comprises at least one component which is a component out of said components comprised by the widget configuration data.