Covariance_Matrix

Name	Covariance_Matrix
Entity Type	Extension of Deviation_Survey_Point
Description	The covariance matrix used for a deviation survey point.
Submodel	Deviation_Survey
Entity Scope	Project
Primary Key	Deviation_Survey_Point_Id
Natural Key
Generalizations	Tracked_Object
Specializations

Name	Value Domain / Measurement	Description	Required / Default	Type
Bias_East	double Length	Bias East	No	NUMBER
Bias_North	double Length	Bias North	No	NUMBER
Bias_Vertical	double Length	Bias Vertical	No	NUMBER
Deviation_Survey_Point_Id	Deviation_Survey_Point	As association to show the Covariance Matrix used in the correction of a Deviation Survey Point	Yes	NUMBER(38)
Insert_Date	DATE NA	Date the entity was created in the repository	No	DATE
Insert_User	STRING64 NA	The name of the user responsible for the creation of this entity in the repository.	No	VARCHAR2(64)
Produced_By	STRING64 NA	ID of the activity that was executing when the entity was created, for data created programmatically.	No	VARCHAR2(64)
SDAT_Label	int No_Unit	Label used by the security system for entitlements. SDAT is Secure Data Access Technology.	No	NUMBER(10)
Update_Date	DATE NA	Date of the most-recent modification to the entity.	No	DATE
Update_User	STRING64 NA	The name of the user responsible for the last modification to this entity.	No	VARCHAR2(64)
Var_East_East	double Area	covariance east	No	NUMBER
Var_East_Vertical	double Area	crossvariance east vertical	No	NUMBER
Var_North_East	double Area	crossvariance north east	No	NUMBER
Var_North_North	double Area	covariance north	No	NUMBER
Var_North_Vertical	double Area	crossvariance north vertical	No	NUMBER
Var_Vertical_Vertical	double Area	covariance vertical	No	NUMBER

Link	To Entity	Description	Implementation Technique	Required
Deviation_Survey_Point	Deviation_Survey_Point	As association to show the Covariance Matrix used in the correction of a Deviation Survey Point	Cascade	Yes