I need five to six sentences on..
Explain what the Entity-Relationship model is and what its purpose is
Entity relationship model can be understood as a high level data model that clearly defines data elements and their relationship for a particular software system. An ER model will be composed of entity types and specifies about the relationships that can exist between those
I need five to six sentences on.. Explain what the Entity-Relationship model is and what its...
I need five to six sentences on... What is the difference between "data mining" and "OLAP"?
Explain the following five words, a word corresponds to at least three sentences. I need references if it has. Don't use Wikipedia！！ Supplier relationship management systems (SRMS): Chain of customers: Value chain: Value-chain activities: Vendor-managed inventory (VMI):
Describe the entity-relationship model. How are entities, relationships, and attributes represented in this model?What is a composite entity? Describe the approach to diagrams that use a crow's foot. Describe how you wouldrepresent cardinality in an E-R diagram.
For this DATABASE homework assignment you will create an Entity Relationship model for a business case and then convert the model to a set of relations. Read through the following business case for the “Drum Corps International” Create an Entity relationship model with the necessary entities, attributes, identifiers and relationships to capture the data requirements. All relationships should be labeled with verb phrases. Use UML notation for this work. Relationship lines should not cross. ...
Need a few questions answerd Question 1: What is an ID-dependent entity? Give an example. Entity whose identifier includes the identifier of another entity (Weak) Question 2: Explain the entity shape and type of relationship line used for an ID-dependent entity in an entity-relationship (E-R) diagram.
Microsoft Access/Visio Please write a few sentences on what role does the entity-relationship (ER) diagram play in the design process? Discuss the different types of information represented in the ER diagram and the symbols used to represent them. How would you approach the diagramming process?
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
a. Suppose that a model of a music library does not model ‘artist’ as an entity set, but instead models it as an attribute of a track. This could lead to what the authors of our text call ‘incompleteness’. Why would the they call this model incomplete? Is it because a) not all artist information could be contained as an attribute of a track, b) it would not be possible to model an artist before that artist released any tracks,...
Hello I need help with this. It is microeconomics and it must be 5 sentences or longer please: Name a product that you regularly purchase from a firm that operates in an oligopolistic industry. Explain why the product and firm fit the model of oligopoly. Think about the TV commercials and/or print advertisements that you’ve seen from this industry: What interdependence have you noticed between the firm you selected and its rivals in terms of product differentiation, price leadership, or...
Explain Weisbord’s Six-Box Model, using an example. What are its key characteristics, and useful is it for analyzing an organization? Which, if any, of the areas do you consider to be the most important, and why?