Update ER Diagram to UML

[alex855k]

Documentation

Update the ER Diagram due to using outdated modeling methods, called an ER diagram.

Type - UML Logical Datamodel

Acceptance Criteria

• Follows quality criteria from http://www.agiledata.org/essays/umlDataModelingProfile.html
• The teachers/stakeholders be able to understand it.
• Uses domain specific language.
• Uses technical vocabulary.
• No spelling mistakes.
• No grammatical errors