Data that is used often is stored in the cache so that it can be retrieved quickly. When a user requests data that is in the cache, the data is displayed faster than if it were retrieved from the database. Rational® Focal Point™ uses eight caches for different types of data: Expressions, Attribute Configurations, Settings, Attributes, Filters, Elements, Modules, and Workspaces. Algorithms determine the length of time that the data is stored in the cache.