assoctypecat 
Logical Entity Name  assoctypecat 
Default Table Name  assoctypecat 
Definition  Data associating event types with categories 

assoctypecat Attributes 
Attribute/Logical Rolename  Domain  Datatype  NULL  Definition 
etype(PK)(FK)    VARCHAR(2)  NO  This attribute is used to identify the type of seismic event 
catid(PK)(FK)    NUMERIC(0, 0)  NO  Category identifier 

assoctypecat Keys 
Key Name  Key Type  Keys 
AssocTypeCatKey01  PrimaryKey  etype, catid 

assoctypecat Relationships 
Parent Relationships: 
Entity Name  Type  Cardinality  Business Name  VerbPhrase  InversePhrase  Foreign Keys  Is Supertype 
eventtype  Non-Identifying  One To Zero or More        etype  NO 
eventcategory  Non-Identifying  One To Zero or More        catid  NO 
Child Relationships: 
Entity Name  Type  Cardinality  Business Name  VerbPhrase  InversePhrase  Foreign Keys  Is Subtype 

assoctypecat Check Constraints 
Check Constraint Name  CheckConstraint