We use cookies to give you the best experience possible. By continuing we’ll assume you’re on board with our cookie policy

Hire a Professional Writer Now

The input space is limited by 250 symbols

Hire a Professional Writer Now

Choose 3 Hours or More.
Back
2/4 steps

Hire a Professional Writer Now

Back
3/4 steps

Hire a Professional Writer Now

Back
finish order

Entity-Relationship model vs. Semantic Object model Essay

Paper type: Essay Pages: 1 (226 words)

Views: 443

An Entity Relationship Model, also known as an Entity Relationship Diagram, a graphical representation of entities and their relationships to each other, typically used in computing in regard to the organization of data within databases or information systems. An entity is a piece of data; an object or concept about which data is stored. A relationship is how the data is shared between entities. The three types of relationships between entities are one-to-one, one-to-many, and many-to-many.

One-to-one is when one instance of an entity A is associated with one other instance of another entity B.

One-to-many is when one instance of an entity A is associated with zero, one or many instances of another entity B, but for one instance of entity B there is only one instance of entity A.

Many-to-many is when one instance of an entity A is associated with one, zero or many instances of another entity B, and one instance of entity B is associated with one, zero or many instances of entity A.

A Semantic Object Model is developed from objects that are already known. This model is normally used to document a system, program, or object that is already in use and working properly. Another term for Semantic Model from the field of knowledge representation is “ontology”: the set of classes, relationships, and functions in a universe of discourse.

Cite this page

Entity-Relationship model vs. Semantic Object model. (2016, Jul 02). Retrieved from https://studymoose.com/entity-relationship-model-vs-semantic-object-model-essay

How to Avoid Plagiarism
  • Use multiple resourses when assembling your essay
  • Use Plagiarism Checker to double check your essay
  • Get help from professional writers when not sure you can do it yourself
  • Do not copy and paste free to download essays
Get plagiarism free essay

Not Finding What You Need?

Search for essay samples now

image

Your Answer is very helpful for Us
Thank you a lot!