A computer system for identifying information related to a context includes a context gathering service configured to receive context deltas from a runtime and to identify a current context state. A context delta describes a change from a previous context state to the current context state. The computer system also includes a semantic model with elements and attributes, wherein an element represents one or more context states and an attribute is assigned to the element. The computer system further includes a rule interpreter configured to map the current context state to a current element and a recommender service configured to identify information related to the context in a knowledge source. The recommender service is identified by one or more attributes at least one of which is assigned to the current element.