Entity

AttributeAn attribute is used to define the properties of your entities, thereby defining the data that can exist in your application. 

RelationRelations define possible associations between instances of entities

Static instanceStatic instances are used to create predefined, named instance of entity with predefined attribute values

Value listA value list is used for predefining possible values that an attribute can have and it's corresponding display values. 

Validation ruleValidation rules are used for validating (checking) input, or calculations made based on input

AggregateAggregates are used for storing a snapshot of the profile or a part of the profile, that can be read, updated and/or deleted across sessions. 

Entity Relationship Diagram (ERD)