Patent attributes
A data schema stores both data and metadata as data in a hierarchical, extensible schema made of three classes of objects. The data schema includes algorithms that generate the data schema and provide the functionality. Container object hold master objects, which represent items in a collection. Master objects hold label-value pairs, having a label portion that provides metadata, and having a value portion that holds the data. The label portion references a second label-value pair, in which the value portion holds the metadata as data, which is retrieved at runtime. Label-value pairs may reference a child container object in master objects to create a hierarchy. The schema can retrieve data and data structures from other databases; multiple databases of different formats can be joined. Software can be stored as data and shown as active flowcharts. A graphical interface can be generated in multiple display modes, including in websites.