Question

In: Computer Science

create an entity relationship diagram to describe the data requirements of the system. Your client is...

create an entity relationship diagram to describe the data requirements of the system.

Your client is a local real estate company that wants to automate some of their processes. Here is how some of the business is described: - In a real estate transaction, there is a buyer, a seller, a property, a purchase agreement and a real estate agent - A seller may have one or more properties to sell - A buyer wants to buy only one property - A purchase agreement is between the seller and the buyer, and only for one property - The real estate agent must be part of the purchase agreement as a witness to the transaction.

Specific instructions:

1.Choose the properties that you feel are necessary for each entity. May sure they appear on the diagram.

2. Choose a key for each entity. Make sure you identify it with the correct drawing convention.

Solutions

Expert Solution

The ER Diagram to describe a local real estate company can be drawn as:


Related Solutions

Create an entity relationship diagram to describe the data requirements of the system. Here is how...
Create an entity relationship diagram to describe the data requirements of the system. Here is how some of the business is described: - In a real estate transaction, there is a buyer, a seller, a property, a purchase agreement and a real estate agent - A seller may have one or more properties to sell - A buyer wants to buy only one property - A purchase agreement is between the seller and the buyer, and only for one property...
In this project you will be provided a set of specifications to create an entity-relationship diagram...
In this project you will be provided a set of specifications to create an entity-relationship diagram and design accompanying table layout using sound relational modeling concepts and practices. The relationships between the entities and the attributes for the entities will be identified and described. This database will provide the foundation for the follow-on project. The following paragraphs provide the background and summary of the business requirements. You are a database consultant with Premier Software, LLC and have been assigned to...
Use information from text to create (ERD) Entity Relationship Diagram . Make sure relationship sentences are...
Use information from text to create (ERD) Entity Relationship Diagram . Make sure relationship sentences are consistent with relationship in ERD. Video Store (AVS) runs a series of fairly standard video stores: • Every customer must have a valid AVS customer card in order to rent a video. Customers rent videos for three days at a time. Every time a cus- tomer rents a video, the system must ensure that he or she does not have any overdue videos. If...
An Entity relationship diagram and workflow to implement a system that will allow consumers make online purchase.
An Entity relationship diagram and workflow to implement a system that will allow consumers make online purchase. 
5. Draw an entity-relationship diagram, including minimum and maximum cardinality, for the following: The system stores...
5. Draw an entity-relationship diagram, including minimum and maximum cardinality, for the following: The system stores information about two things: cars and owners. A car has attributes for make, model, and year. The owner has attributes for name and address. Assume that a car must be owned by one owner and an owner can own many cars, but an owner might not own any cars (perhaps she just sold them all, but you still want a record of her in...
For a Desktop Browser create system requirements that consist of Functional, Data, and Performance requirements written...
For a Desktop Browser create system requirements that consist of Functional, Data, and Performance requirements written in Natural Language. Categorize the requirements into subsections according to functional areas, e.g., configuration, reliability, security, etc. Each Top-Level Requirement in Natural Language must be contained in a separate paragraph. The text of each requirement must be preceded by a unique identifier, to facilitate traceability. The identifier must have the following format: DWB-XXXX-REQ-#### Requirements text…………. The XXXX part is a requirement-type identifier and has...
Distinguish between entity relationship diagrams, data flow diagrams, and system flowcharts.
Distinguish between entity relationship diagrams, data flow diagrams, and system flowcharts.
Based on your scatter diagram, is there a relationship between the variables? If yes, describe the...
Based on your scatter diagram, is there a relationship between the variables? If yes, describe the relationship. -Does it appear to be positive or negative? Strong or weak or moderate? -What would your guess of r, the correlation coefficient, be?
business rules and entity-relationship diagram insurance, invoice, patient, appointment, employee
business rules and entity-relationship diagram insurance, invoice, patient, appointment, employee
A database needs to be developed that supports a supermarket. (i) Design an entity-relationship diagram that...
A database needs to be developed that supports a supermarket. (i) Design an entity-relationship diagram that captures, as far as possible, the requirements stated below. (Statements in brackets are additional explanations and not part of the requirements proper.) If you make any assumptions in your design, please write them down. Assumptions, however, must not contradict the requirements. 1. The supermarket sells products. Each product is uniquely identified by its product number. Moreover, a product has price. The supermarket also records...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT