Reference no: EM131527502
Pick a topic of your interest and create sample ERD (Entity Relationship Diagram) with documentation.
Please use ER Assistant, Visio, or SQL Developer Data Modeler. ERD should have at least 5, but no more than 6 entities with a minimum of 5 attributes in each entity. Entities should be connected with suitable relationships. Your ERD should have comments and please describe your business rules including purpose of each entity, entity relationship and cardinality. Comments/business rules can be embedded in your diagram or in a separate document. Crow's feet notation style is required. The ERD should be free of errors to receive full points. ER Assistant provides automated checks to ensure the ERD is error free.
Use the lab project to answer the following questions:
1. What is your understanding of Entity Integrity Vs Referential Integrity. Illustrated with simple examples for ease of understanding of the concepts.
2. Based upon the lab project, describe 3 entities and illustrate different types of joins using these 3 entities. If you have not yet decided about your lab project then assume you have three entities student, course & enrollment and these tables are related.
3. Describe various types of keys (Primary, Foreign, Superkey etc) with simple examples.
|
How long does your search engine retain your searches
: 1. How long does your search engine retain your searches? Why would search engines want to know what searches were performed by each of their customers?
|
|
Both systems are to be depreciated straight-line to zero
: Both systems are to be depreciated straight-line to zero over their lives and will have zero salvage value. HISC always needs a conveyor belt system;
|
|
Explain the impact technologies have on health care systems
: Examine the impact technologies have on health care information systems.Describe the basic components of a strategic information system plan.
|
|
Determine amount of total revenue recorded in the ledger
: On March 1, 2006, Tim Cochran established Star Realty, which completed the following transactions during the month.
|
|
Entity integrity vs referential integrity
: What is your understanding of Entity Integrity Vs Referential Integrity. Illustrated with simple examples for ease of understanding of the concepts.
|
|
Analyze companys capital structure and its cost of capital
: Analysis of the company's capital structure and its cost of capital. Highlight the key risks and what sort of actions management should take to manage it.
|
|
Find the leftmost even number
: Please do it in Lisp, thanks a lot. Assume L is list of only integer numbers (Including zeros, or positive, or negative numbers, or could be an empty list).
|
|
Existing manual business functional-based transaction proces
: DEFINE and DISCUSS the steps taken from an existing manual business functional-based transaction process to an improved, integrated, automated transactional.
|
|
Determine ebitda
: The Digital Express Company disclosed a net income of $12,000 on revenues of $400,000 for fiscal year ending December 31, 2007. The company had $500,000 of 6%.
|