SOLVED

31)Â The following figure shows a: A) disjoint constraint. B) completeness constraint. C) supertype/subtype hierarchy. D) spindle constraint. 32) Which statement is true about the following diagram? A) A person can only be a faculty, student or staff. B) A student can be both an undergraduate and a graduate student at the same time. C) All attributes of person and student are inherited by undergraduate. D) All attributes of graduate are inherited by person. 33) Packaged data models: A) are ready to use right out of the box. B) require customization. C) allow partial specialization. D) cannot be used for most applications. 34) A generic or template data model that can be reused as a starting point for a data modeling A) packaged data model. B) universal data model. C) enterprise data model. D) none of the above. 35) All of the following are advantages of packaged data models EXCEPT: A) packaged data models can be built using proven components evolved from cumulative experiences. B) projects take less time and cost less. C) the data model is easier to evolve. D) more one-to-one relationships give the data model more flexibility. 36) All of the following are steps to using a packaged data model EXCEPT: A) identify the parts of the data model that apply to your data modeling situation. B) utilize all business rules that come with the packaged data model. C) rename the identified data elements. D) map data to be used in packages with existing data in the current databases. 37) When identifying with the parts of the packaged data model that apply to your organization, you should first start with: A) entities. B) attributes. C) primary keys. D) relationships. 38) The third step in the data modeling process with a packaged data model is: A) rename identified data elements. B) rename relationships. C) map data to be used from package to data in current databases. D) interview users. 39) A good method for identifying inconsistencies and finding hidden meaning in the customized purchased data model is: A) data analysis. B) data volume usage analysis. C) user interviews. D) data profiling. 40) The most important challenge of customizing a purchased data model is: A) getting user buy-in. B) determining the business rules that will be established through the data model. C) implementation. D) user training.