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An E-R diagram may also indicate the cardinality of a relationship. Cardinality is the number of instances of one entity that can, or must, be associated with each instance of another entity. In general we may speak of one-to-one, one-to-many, or many-to-many relationships.
There are several different styles used to draw Entity-Relationship diagrams. The Kendall and Kendall text uses the Crow's Foot notation. Using this notation entities are represented by rectanges and relationships are indicated by lines connecting the rectangles. Cardinality is shown by a series of "tick marks" and "crows feet" superimposed on the relationship lines.
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How do you tell between the Endoplasmic Reticulum and Golgi Apparatus in a bad diagram?
In general, if there are more than one of the structures in a cell, then it is the smooth ER because each cell only has one golgi apparatus and there can be more than one smooth ER.
What the is difference between rough ER smooth ER?
Smooth ER, endoplasmic reticulum, does not have ribosomes, and Rough ER does.rough er is studded with ribosomes while smooth er is not.
What is the difference between rough ER and smooth ER?
Rough ER is studded with ribosomes while smoth ER is not.
What are two types of ER?
The two types of Endoplasmic Reticulum (ER) are: *Smooth ER ( SER ) *Rough ER ( RER )
How does smooth ER differ from rough ER?
Rough ER is studded with ribosomes and are involved in modifying proteins. Smooth ER has no ribosomes and is involved with making and modifying fats. Smooth ER lacks the ribosomes that cover the rough ER.
What is cardinality ratio in ER diagram?
It specify the number of relationship instances that an entity can participate in.
What are the differences between EER diagrams and ER diagrams?
Extended ER diagram is a variant of ER diagram. EER include ER diagram + hierarichal concept. Extended ER diagram is also called Enhance ER diagram(EER).
Drow a er diagram of a supermarket?
supermarket (ER-Diagram)
An ER diagram for a website?
I 'm need ER diagram for websit news
How can you make Er diagram of online shopping?
Er diagram of on line shopping
Where can you find an ER diagram on online shopping?
ER Diagram of online shopping
How do you draw the ER Diagram for online tour site?
draw the er diagram for tours
How do you draw a ER diagram for an automobile industry?
How do you draw a ER diagram for a automobile industry?
How do you draw the ER diagram of bus reservation?
You also can draw your ER diagram by so many ways. A software called Edraw is a better software to draw the ER diagram. This one has some ready-to-use ER diagrams templates conceptdraw.com/How-To-Guide/er-diagram
How is Er diagram of human resource management?
Er diagram of human resource managenent system
Er diagram on regional transport office project?
er diagram for rto management system
Examples of ER diagram for car company?
what is example of ER diagram for rental car company ?
