Which among the following statements is false about verification and validation of use case diagram? O a. All relationships should be shown on use case diagram as per the use case description. O b. All diagram specific rules must be enforced. O c. There should be one and only one description for each use case. O d. The sequence of use case description need not match the sequence in the activity diagram.

Which among the following statements is false about verification and validation of use case diagram? O a. All relationships should be shown on use case diagram as per the use case description. O b. All diagram specific rules must be enforced. O c. There should be one and only one description for each use case. O d. The sequence of use case description need not match the sequence in the activity diagram.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Enhanced ER Model

The enhanced ER model is an abbreviation for Enhanced Entity-Relationship (EER) model. As you know, the entity-relationship (ER) model is a pictorial illustration of the relationship between various entities of a domain. In the case of a large amount of data with multiple interrelated entities, the ER diagrams become complex and tough to interpret. For such cases, the need for enhancement in the ER model was observed, and thus, the EER model was designed.

Question

Which among the following statements is false about verification and validation of use case
diagram?
O a. All relationships should be shown on use case diagram as per the use case description.
O b. All diagram specific rules must be enforced.
O c. There should be one and only one description for each use case.
O d. The sequence of use case description need not match the sequence in the activity diagram.

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