Wgu C170 Er-Modeling Rated A+

Unary relationships are common in manufacturing industries. - TRUE _________________ not only helps database designers to stay on track during the design process, it also enables them to pick up the design thread when the time comes to modify the design. - Documentation Ideally, an entity identifier is composed of _____ attribute(s). - one The first step in building an entity-relationship diagram (ERD) is ___________________________________________________________. - creating a detailed narrative of the organization's description of operations A ________ entity has a primary key that is partially or totally derived from the parent entity in the relationship. - weak The decision to store ____________ attributes in database tables depends on the processing requirements and the constraints placed on a particular application. - derived In a 1:M relationship, to avoid the possibility of referential integrity errors, the data of the "1" side must be loaded first. - TRUE To implement a small database, a database designer must know the "1" and the "M" sides of each relationship and whether the relationships are mandatory or optional. - TRUE A _________ attribute is one that cannot be subdivided. - simple Complex ____________ requirements may dictate data transformations, and they may expand the number of entities and attributes within the design. - information