Views and Formal Implementation in a Three-Level Schema Architecture for Dynamic Objects

摘要: The three-level schema architecture proposed as part of a framework for database standardization supports data independence resulting in being flexible and adaptable to changes. Dynamic object bases differ from classical models their integrated description structure behaviour objects. arguments introducing the different levels applications hold bases, too, may help large object-oriented applications. This paper discusses transfer approach an describing dynamic Requirements formalisms external, conceptual internal level lead desired language features system specification languages.