Systems and methods are provided for storing a pattern occurring in situation representations for context representation in an application. A system stores a pattern occurring in situation representations for context representation in an application. The system includes a first storage medium for storing a plurality of situations in which the user is or has been involved, as a respective plurality of situation representations having at least one property determined by the respective situation. The system also includes a pattern identifier for identifying a pattern including a common property shared by at least two of the plurality of situation representations in the plurality of stored situation representations. The system further includes a second storage medium for storing a representation of the pattern. The first storage medium is arranged to remove the at least two of the plurality of situation representations from the first storage medium in response to the identification of the pattern.