To complete the UCL conceptual database design we must verify the model. Verification represents the link between the database modelling and design activities, database implementation, and database application design. Therefore, the verification process is used to establish that:
The design properly reflects the end user or application views of the database.
All database transaction - inserts, updates, deletes ? are defined and modelled to ensure that the implementation of the design will support all transaction processing requirements. The database design is capable of meeting all output requirements, such as query screens, forms, and report formats. (Remember that information requirements may drive part of the design process). All required input screens and data entry forms are supported. The design is sufficiently flexible to support expected enhancements and modifications. In spite of the fact we were forces to revise the E-R diagram depicted in Figure 2.1, it is still possible that: Some of the relationship are not clearly identified and may even have been misidentified. The model contains design redundancies (consider the similarity between the WTIHDRAW and CHECK-OUT entities). The model can be enhanced to improve semantic precision and better represent the operations in the real world. The model will demonstrate the requirements (such as processing performance or security).
To complete the UCL conceptual database design we must verify the model. Verification represents the link between the database modelling and design activities, database implementation, and database application design. Therefore, the verification process is used to establish that:
The design properly reflects the end user or application views of the database.
All database transaction - inserts, updates, deletes ? are defined and modelled to ensure that the implementation of the design will support all transaction processing requirements. The database design is capable of meeting all output requirements, such as query screens, forms, and report formats. (Remember that information requirements may drive part of the design process). All required input screens and data entry forms are supported. The design is sufficiently flexible to support expected enhancements and modifications. In spite of the fact we were forces to revise the E-R diagram depicted in Figure 2.1, it is still possible that: Some of the relationship are not clearly identified and may even have been misidentified. The model contains design redundancies (consider the similarity between the WTIHDRAW and CHECK-OUT entities). The model can be enhanced to improve semantic precision and better represent the operations in the real world. The model will demonstrate the requirements (such as processing performance or security).
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