Filter_Sequence 
Logical Entity Name  Filter_Sequence 
Default Table Name  Filter_Sequence 
Definition  Summary information on a sequence of filters 

Filter_Sequence Attributes 
Attribute/Logical Rolename  Domain  Datatype  NULL  Definition 
seqfil_id(PK)    NUMERIC(8, 0)  NO  Sequence of filters identifier. Each sequence of filters is assigned a unique integer which identifies it in a database 
name    VARCHAR(32)  NO  This attribute denotes a descriptive name for a chain of filters 
nb_filter    NUMERIC(8, 0)  NO  This attribute denotes the number of filters of a sequence 
gain    FLOAT  YES  This attribute denotes the gain 
frequency    FLOAT  YES  The frequency (fs) at which the value in sensitivity/gain is correct 
lddate    DATE  YES  Load date. Date and time that the record was created or last modified, in Oracle date datatype 

Filter_Sequence Keys 
Key Name  Key Type  Keys 
FiS00  PrimaryKey  seqfil_id 

Filter_Sequence Relationships 
Parent Relationships: 
Entity Name  Type  Cardinality  Business Name  VerbPhrase  InversePhrase  Foreign Keys  Is Supertype 
Child Relationships: 
Entity Name  Type  Cardinality  Business Name  VerbPhrase  InversePhrase  Foreign Keys  Is Subtype 
Filter_Sequence_Data  Identifying  One To Zero or More          NO 
Station_Datalogger_LChannel  Non-Identifying  One To Zero or More          NO 

Filter_Sequence Check Constraints 
Check Constraint Name  CheckConstraint 
FiS01  frequency >= 0.0 
FiS02  nb_filter >= 0