POSC Specifications: Epicentre Version 3.0 | Logical Data Model |
A property that describes the ratio of a measured fluid component with respect to a reference fluid component in a fluid sample.
- fluid_sample (M, K: fluid_sample(pty_sp_fluid_component_ratio))
- The fluid sample that is being described. Each pty_sp_fluid_component_ratio must be a property of one fluid_sample.
- measured_fluid_component (O, K: fluid_component(used_as_numerator))
- When only one component (or pseudo-component) is being measured with respect to another fluid component, this is the fluid component being measured (numerator). Each pty_sp_fluid_component_ratio may use as the measured component one fluid_component.
- reference_fluid_component (O, K: fluid_component(used_as_denominator))
- When only one component (or pseudo-component) is being measured with respect to another fluid component, this is the fluid component being referenced (denominator). Each pty_sp_fluid_component_ratio may use as the reference component one fluid_component.
- activity (O, K, I: activity(process_data))
- Defines the activity which created this instance. Each pty_sp_fluid_component_ratio may be the result of one activity. Inherited from process_data.
- data_value (M: ndt_real4)
- The ratio of the measured fluid component to the reference fluid component.
- description (O, I: ndt_comment) (C117)
- A remark or comment about the instance. Inherited from e_and_p_data.
- instance_create_date (O, I: ndt_date_tod) (C126)
- This is the date that this instance was created. This date is defined by the source if imported, or is the date the instance is created if a new instance. Inherited from e_and_p_data.
- instance_creator (O, I: ndt_identifier) (C126)
- This is the person, company or application that created this instance. This identifies the party responsible for loading this instance. Inherited from e_and_p_data.
- last_updated (O, I: ndt_date_tod) (C126)
- This is the date that this instance was last updated. This value should be updated when any part of this instance is altered (except for inverse relationships). Inherited from e_and_p_data.
- last_updated_by (O, I: ndt_identifier) (C126)
- This records the person or application making the update to this instance. Inherited from e_and_p_data.
- preferred_flag (O, I: ndt_boolean)
- The flag is set to True if this instance of property is the preferred value in this data store of this type of property for the object which this property describes. Inherited from property.
- source (O, I: ndt_identifier) (C126)
- The provider of this instance, which is usually a data provider for imported/purchased data. If this instance is provided by POSC, then this attribute must be "POSC". Inherited from e_and_p_data.
- data_collection (I, V: SET[0:?] data_collection_content(collection_part)) (C020)
- Indicates the data collections that include this instance of E and P data. Each pty_sp_fluid_component_ratio may be a member of one or more data_collection_content. Inherited from e_and_p_data.
- document_information_content (I, V: SET[0:?] document_information_content(e_and_p_data)) (C136)
- These are the document specification parts that include this data value and define its meaning within a document specification. Each use may define a different meaning, and many uses are allowed. Each pty_sp_fluid_component_ratio may be included in one or more document_information_content. Inherited from e_and_p_data.
- graphical_element (I, V: SET[0:?] graphical_element(depicted_object))
- Specifies one or more graphical elements which are depicting this data item. Each pty_sp_fluid_component_ratio may be depicted by one or more graphical_element. Inherited from e_and_p_data.
- process_data_item (I, V: SET[0:?] process_data_item(process_data))
- Defines where this data was used by an activity. Each pty_sp_fluid_component_ratio may be the value for one or more process_data_item. Inherited from process_data.
- represent (O, I: property(representations)) (C125)
- This is the property that is the original for which this representation is an equivalent representation. Each pty_sp_fluid_component_ratio may be an equivalent representation of one property. Inherited from property.
- representations (I, V: SET[0:?] property(represent)) (C125)
- This designates other properties that are stated to be equivalent representations of this property representation, such as the same geometry using another coordinate system. Each pty_sp_fluid_component_ratio may have as equivalent representations one or more property. Inherited from property.
Local rules:
- Uniqueness Constraint
- fluid_sample, measured_fluid_component, reference_fluid_component, activity
- [I: property] Mandatory Relationship Set
-
Each PROPERTY must "be a property of" one object.
Supertype path(s):
Generated on Tue Jul 10 15:50:37 2001
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