Sensor_Component 
Logical Entity Name  Sensor_Component 
Default Table Name  Sensor_Component 
Definition  Component of a sensor 

Sensor_Component Attributes 
Attribute/Logical Rolename  Domain  Datatype  NULL  Definition 
sensor_id(PK)(FK)    NUMERIC(8, 0)  NO  Sensor identifier. Each sensor is assigned a unique integer which identifies it in a database 
component_nb(PK)    NUMERIC(8, 0)  NO  This attribute represents the component number 
channel_comp    VARCHAR(2)  YES  Component channel 
component_type    VARCHAR(1)  YES  This attribute denotes the component type 
sensitivity    FLOAT  NO  This attribute denotes the sensitivity (Sd) for a sensor or a digitizer 
frequency    FLOAT  YES  The frequency (fs) at which the value in sensitivity/gain is correct 
seqresp_id    NUMERIC(8, 0)  YES  Sequence of responses identifier. Each sequence of responses is assigned a unique integer which identifies it in a database 
lddate    DATE  YES  Load date. Date and time that the record was created or last modified, in Oracle date datatype 

Sensor_Component Keys 
Key Name  Key Type  Keys 
SeC00  PrimaryKey  sensor_id, component_nb 

Sensor_Component Relationships 
Parent Relationships: 
Entity Name  Type  Cardinality  Business Name  VerbPhrase  InversePhrase  Foreign Keys  Is Supertype 
Response  Non-Specific            NO 
Sensor  Identifying  One To Zero or More        sensor_id  NO 
Child Relationships: 
Entity Name  Type  Cardinality  Business Name  VerbPhrase  InversePhrase  Foreign Keys  Is Subtype 

Sensor_Component Check Constraints 
Check Constraint Name  CheckConstraint 
SeC01  component_nb >= 1 
SeC02  frequency >= 0.0