$\backslash$table$[[$Match$,$Term,Definition$],[,$Entity Type,a$)$ A classification of relationships belween entities,$],[,$Entity Relationship Model,$\backslash$table$[[$b$.$ The rule that defines the number of instances of$],[$one entity that can be assoclated with another$],[$entity$.]]],[,$Entity Instance,$\backslash$table$[[5.$ An entity type that has a primary key and can exist$],[$independently of other types.$]]],[,$Attribute,$\backslash$table$[[$d$.$ A relationship that provides a way to uniquely$],[$identify il weak entity.$]]],[,$Relationship Type,$\backslash$table$[[$e$.$ A basic unit of data that represents a real$-$world$],[$object or concept.$]]],[,$Strong Entity Type,$\backslash$table$[[$f$.$ Aconceptual framework for organizing and$],[$representing data and its relationships.$]]],[,$Multivalued Attribute,$\backslash$table$[[$B$.$ An attribute that can be divided into smaller$],[$subparts$,$ each representing a more basic attribute.$]]],[,$Associative Entity,h$.$ A single occurrence of an entity type.$],[,$Cardinality Constraint,$\backslash$table$[[1.$ An entity type that cannot be unquely identified by$],[$its own attributes alone and relies on a strong$],[$entity$.]]],[,$Weals Entity,$\backslash$table$[[$I$.$ A hierarchical structure that shows the components$],[$and subcomponents of a product.$]]],[,$Identifying Relationship,$\backslash$table$[[$k$.$ An entity wsed to represent a relationship between$],[$other entities, aften with its own attributes.$]]],[,$Derived Atiribute,$\backslash$table$[[1.$ A constraint or policy that gowerns the business$],[$logic of the organization.$]]],[,$Business Rule,$\backslash$table$[[$m $.$ A type of relationship involving three different$],[$entities$.]]],[,$Composite Attribute,$\backslash$table$[[$n$.$ A classification that defines a set of entities with$],[$similar characteristics.$]]],[,$Unary Relationship,$\backslash$table$[[$o$.$ An attribute whose walue can be derived from$],[$other attributes.$]]],[,$Degree,$\backslash$table$[[$p$.$ An attribute or set of attributes that uniquely$],[$identifies an entity instance.$]]],[,$Entity,$\backslash$table$[[$q$.$ An attribute that can have multiple values for a$],[$single entity instance.$]]],[,$Ternary,$\backslash$table$[[$r$.$ The number of entity types participating in a$],[$relationship$.]]],[,$Bill$-$of$-$Materials,$5.$ A relationship where an entity is related to itself.$],[,$Identifier,$\backslash$table$[[1$ A property or characteristic of an entity or$],[$relationship$.]]]]$