20 May Enhanced Entity Relationship Diagram (EERD) And Relational Data Model (RDM)
Task Create a database design specification (Enhanced Entity Relationship Diagram (EERD) and Relational Data Model (RDM)) from the given business description. The RDM must be in 3rd Normal Form. The following defines the minimum information that should be reported: List and explain the defined business rules that can be determined from the business description. The Enhanced Entity Relationship Diagram (EERD) produced with a drawing or case tool. Your EERD must use a ‘standard’ notation style such as Crows Foot or Chen. Please note that the relationship diagram produced using MS Access, or MS SQL Server is NOT an acceptable ERD notation. Your EERD must show: All entities, Primary and Foreign keys, as appropriate, All attributes for each entity, Relationships between entities, including their cardinality and optionality, The EERD must not contain any M:N relationships. These must be decomposed. The Relational Data Model (RDM) which corresponds to the ERD in the format shown below. The RDM MUST identify all primary keys, alternate keys and foreign key constraints. Raw SQL Create Table script dumps from a modeling tool, or SQL Server WILL NOT be accepted. The RDM must be in 3rd Normal Form. The assumptions that you have made to develop the system. RDM format: Table Name (attribute_1, attribute_2…attribute_n) Primary Key (attribute_a,…attribute_n) Foreign Key attribute_x References Table Name (attribute_x) Alternate Key attribute_c|none Business description Case summary ELK County Maine has been awarded a federal grant to build a modest paediatric medical centre (PMC). The grant also paid for the medical education of a paediatrician that will practice at the medical centre for at least five years. The grant included purchasing a medical information system to assist the doctor and the county in managing the medical centre. The county’s Director of Information Systems assigned a business analyst to explore and report on the hardware and software requirements…
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