Conceptual Database

Conceptual Database

1. It includes some theoretical frameworks

   • Arquitecturas
     • ANSI-SPARC Architecture
       • identified three distinct levels
         • External Level
           • Comprises a number of different external views of the database.
         • Conceptual Level
           • It contains the logical structure of the entire database
             • represents
               • All entities, their attributes, and their relationships
               • The constraints on the data
               • Semantic information about the data
               • Security information
         • Internal Level
           • optimal runtime performance and storage space utilization is achieved.
   • Modelos
     • Conceptual Database Modeling
       • Object-Role Modeling
         • groups of objects and relevant functions are identified and used to create basic facts that form the "building blocks" for information models.