Essentials of Systems Analysis and Design (6th Edition)
6th Edition
ISBN: 9780133546231
Author: Joseph Valacich, Joey George
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Want to see more full solutions like this?
Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Please describe what an entity-relationship model is as well as how it functions.
Creation of Entity Relationship Diagram
Draw the entity relationship diagram (ERD) for this information.
Please describe what an entity-relationship model is as well as how it operates.
Chapter 7 Solutions
Essentials of Systems Analysis and Design (6th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- Describe the primary components of an entity-relationship diagram, including entities, attributes, and relationships.arrow_forwardis a term used to measure the number of relationships between an entity and other entities. Multiplicity Specialty Associativity Cardinalityarrow_forwardDraw an EER diagram for the following situation using the traditional EER notation. A technology company provides offerings to its customers. Offerings are of two separate types: products and services. Offerings are identified by an offering ID and an attribute of description. In addition, products are described by product name, standard price, and date of first release; services are described by name of the company’s unit responsible for the service and conditions of service. There are repair, maintenance, and other types of services. A repair service has a cost and is the repair of some product; a maintenance service has an hourly rate. Fortunately, some products never require repair. However, there are many potential repair services for a product. A customer may purchase an offering, and the company needs to keep track of when the offering was purchased and the contact person for that offering with the customer. Unfortunately, not all offerings are purchased. Customers are…arrow_forward
- What does cardinality indicate in an entity-relationship diagram? 1:The unique identification for which data is stored 2:The maximum number of entity instances for the connection 3:The total number of primary keys for an object. 4:The total number of features of an entityarrow_forwardAnalyze the given entity relationship diagram and answer the following questions. What is the degree of “has” relationship? Identify primary key(s) Identify the category of each attribute Name the cardinalitiesarrow_forwardWhat exactly is meant to be accomplished by using an Entity-Relationship Model, and how is this model used?arrow_forward
- Describe the purpose and operation of an entity-relationship model.arrow_forwardPlease define entity-relationship modeling and describe its operation.arrow_forwardERD should have a minimum of 10 entities, and ideally more. Entity-Relationship Diagram The subject could be an organization that you are employed with or an organization you are observing. Contact with representative from the particular organization is encouraged but not required. using LucidChart Develop business rules You should have at least 20 business rules.arrow_forward
- What is an entity-relationship diagram, and how does it work?arrow_forwardDescribe the process of creating an entity-relationship diagram (ERD). Provide a complex real-world scenario and design an ERD to represent it.arrow_forwardIn an entity-relationship diagram, what does cardinality represent? 1:The distinct identifier for which data is kept 2:The relationship's maximum number of entity instances 3:An entity's total amount of primary keys. 4:An entity's total amount of characteristicsarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Enhanced Entity Relationship Model; Author: Data Science Center;https://www.youtube.com/watch?v=ocQUtXPumdQ;License: Standard YouTube License, CC-BY