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Conceptual schema
A conceptual schema is a high-level description of informational needs underlying the design of a database.[citation needed] It typically includes only
Database schema
language. The states of a created conceptual schema are transformed into an explicit mapping, the database schema. This describes how real-world entities
Data modeling
the model. Simply described, a conceptual schema is the first step in organizing the data requirements. Logical schema: describes the structure of some
Three-schema approach
with conceptual modelling being considered the key to achieving data integration. The three-schema approach provides for three types of schemas with schema
Entity Framework
programming against the conceptual model. From the relational schema, it creates views of the data corresponding to the conceptual model. It aggregates information
Database design
representation Logical data model Mindmap Physical data model Semantic Web Three schema approach Teorey, T.J., Lightstone, S.S., et al., (2009). Database Design:
Data independence
Logical data independence indicates that the conceptual schema can be changed without affecting the existing schemas. The physical structure of the data is
ANSI-SPARC Architecture
integrity constraints (later). There is only one conceptual schema per database. The internal schema at the lowest level contains definitions of the stored
Physical schema
data, or the conceptual schema that is the integration of a set of external schemas. Subsequently[citation needed] the internal schema was recognized
Conceptual model
Conceptual framework Conceptual model (computer science) Conceptual schema Conceptual system Information model International Conference on Conceptual