Create a Entity-relationship (ERD) assignment (AS-IS) for Petrie Electronics.
Entity-relationship (ERD) assignment (AS-IS) for Petrie Electronics :
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Create a Entity-relationship (ERD) assignment (AS-IS) for Petrie Electronics.
create a Data flow diagram (DFD) assignment (To-BE) for Petrie electronics system.
For this assignment, you should create an Entity Relationship Diagram (ERD) in Visio that shows a many-to-many relationship between DeVry University students and their classes. Since one student can have many classes and each class can have many students, you will need to create an associative entity to store the specific Student_Class data such as grade and attendance. Create the tables as well as the relationships. Don't forget to indicate the Primary Key and Foreign Key in each table. Tables...
Structuring system data requirements - including conceptual data models for the "as-is" system using E- R modeling tools. Create a Entity-relationship (ERD) assignment (AS-IS) for Petrie Electronics.
Create a Data flow diagram (DFD) (AS-IS) for Petrie Electronics Reward System. This will probably include many DFD charts
Attached is an "As Is" or
current DFD for Petrie Electronics. Please create a "To-be" or
recommendation DFD for one you offer.
Purchase Transaction Customer Record Customer Activities Customer Activity Record Coupon Activity of Customer Info of Coupon Promotion Marketing Database Send Promotion Generate Point Redemption Coupons Info of Report Generate Customer Reports Customer Coupon Info of the product Product Database
Building an ERD: In your own words please explain the first step in building an entity-relationship diagram (ERD)
Create an Entity-Relationship Diagram (ERD).In the ERD include the following: entities primary keys for all entities attributes - use "good" names for attributes, use only single-valued attributes relationships - use Crow's foot or UML notation; name relationships that could be ambiguous cardinality - minimum (optional/mandatory) and maximum (one or many) on both ends of the relationship - use reasonable assumptions if there is insufficient information in the descriptionStudent/Course registration system for a universityStudents have a unique identification number, first name, middle initial, last name, year...
Part I: Create an Entity-Relationship Diagram (ERD) based on the REA Model During an internship with James Merchant, CPA, you were asked to create a database for the firm to help with billing and cash receipts. Merchant employs one staff accountant, a bookkeeper and one intern. Currently, Merchant uses a paper-based system to keep up with customer billing. He feels that he would have better control over the billing and cash receipts if used a computerized system. Merchant specializes in...
3. b) Construct an appropriate conceptual Entity Relationship Diagram (ERD) for the requirements specified below. The Chen notation should be used to create the diagram. An insurance company has customers and offers products. When a customer takes out insurance they buy a policy. The minimum amount of information on the policy is the type of insurance taken out, the annual premium and the full name of the insured. A so called insured person does not necessarily have to be a...
Please explain and describe 1. What is Arcs in ERD (Entity Relational Diagram) 2. What is Historical Data 3. What is the purpose of modeling Historical Data 4. What is Recursive Relationship in ERD 4. What is Recursive Relationship in ERD