Develop Use CasesEvaluate Existing Models

Develop/Extend Model

Test Model Document

1. CommercialThis use-case involves identifying the location and properties of water wells, to inform drillers and the public about local environmental conditions.

2. PolicyThis use case involves the delivery of groundwater quantity information required for water management reporting purposes.

3. EnvironmentalThis use case involves serving the appropriate groundwater information to allow environmental managers, water managers and legislators to assess the risks to GDEs.

4. ScientificThis use case involves the delivery of information required to help determine the flow of groundwater within a particular terrain, likely for input into a computational flow modeling software.

5. TechnologicThis use case involves using the schema as a canonical structure into which heterogeneous ground-water data formats are transformed.

1. Finalize the GML-XML UML model and XSD schema

2. Generate GML-XML instance documents

3. Develop services required to test use cases

4. Evaluate services against use cases

5. Development of an engineering report

6. Submit for review and approval by the OGCwww.opengeospatial.org

The GroundWaterML2 Logical and XML schemas are organized into 5 modular packages:1. GWML2-Main: core elements such as aquifers, their pores, and fluid bodies. 2. GWML2-Constituent: the biologic, chemical, and material elements of a fluid body.3. GWML2-Flow: groundwater flow within and between containers.4. GWML2-Well: water wells, springs, and monitoring sites.5. GWML2-WellConstruction: the components used to construct a well.

class GWML2 LM - Groundwater Properties

GeologicUnit«FeatureType»

GW_HydrogeoUnit

«property, voidable»gwUnitDischarge: GW_Discharge [1..*]gwUnitMedia: PorosityTypeTermgwUnitRecharge: GW_Recharge [1..*]gwUnitWaterBudget: GW_WaterBudget

«property»gwUnitProperty: OM_Measurement [0..*]gwUnitVulnerability: OM_Observation [0..*] «type»

GW_UnitFluidProperty

«property, voidable»gwHydraulicConductivity: OM_MeasurementgwTransmissivity: OM_MeasurementgwStorativity: OM_MeasurementgwYield: OM_Measurement

«FeatureType»GW_FluidBody

«property, voidable»gwBodyFlow: GW_Flow [1..*]gwBodyMetadata: MD_Metadata [1..*]gwBodyProperty: OM_Measurement [1..*]gwBodyQuality: BodyQualityTerm [1..*]gwBodyShape: GM_ObjectgwBodyVolume: OM_MeasurementgwBodyVulnerability: OM_Observation [0..*]

«FeatureType»GW_HydrogeoVoid

«property, voidable»gwVoidHostMaterial: EarthMaterial [1..*]gwVoidMetadata: MD_MetadatagwVoidShape: GM_ObjectgwVoidType: PorosityTypeTermgwVoidVolume: OM_Measurement

«type»GW_UnitVoidProperty

«property, voidable»gwPermeability: OM_MeasurementgwPorosity: OM_Measurement [1..*]

«FeatureType»GW_ManagementArea

«property, voidable»gwAreaFeature: GFI_Feature [1..*]gwAreaLicence: GW_LicencegwAreaWaterBudget: GW_WaterBudget [1..*]gwAreaYield: OM_Measurement

«property»gwAreaMetadata: MD_Metadata [0..*]gwAreaShape: GM_ObjectgwAreaType: ManagementAreaTypeTerm

«CodeList»PorosityTypeTerm

«Type»EarthMaterial::EarthMaterial

purpose: DescriptionPurpose = instance

«estimatedProperty, voidable»color: Category [1..*]

«DataType»PhysicalProperties::PhysicalDescription

propertyName: PhysicalPropertyTerm

«estimatedProperty»propertyMeasure: Quantity [1..*]

«CodeList»BodyQualityTerm

«CodeList»ManagementAreaTypeTerm

«DataType»GW_Licence

«property, voidable»gwAssociatedGWVolume: QuantityRange [0..1]gwPurpose: CharacterStringgwTimePeriod: TimeRange

«property»gwLicenceID: CharacterString

From GeoSciML

gwVoidUnit«property»

1..*

gwUnitVoid«property»

0..1

gwFluidBodyUnit«property»

1..*

gwUnitFluidBody«property»

0..*

gwPartOfBody«property» 0..1

gwBodyPartOf«property» 0..*

gwFluidBodyVoid«property»

gwVoidFluidBody«property»

0..1

gwPartOfVoid«property» 0..1

gwVoidPartOf«property» 0..*

gwAreaBody«property»

0..*

gwManagementArea«property»

0..*

gwManagedUnit«property»

1..*

physicalProperty«voidable»

1..*

Interoperable sharing of groundwater data across international boarders is essential for the proper management of global water resources. However storage and management of groundwater data is often times distributed across many agencies or organizations. Furthermore these data may be represented in disparate proprietary formats, posing a significant challenge for integration. For this reason standard data models are required to achieve interoperability across geographical and political boundaries.

The GroundWater Markup Language 1.0 (GWML1), an extensible markup language (XML) schema, was developed in 2010 as an extension of the Geography Markup Language (GML) in order to support groundwater data exchange within Spatial Data Infrastructures (SDI). In 2013, development of GWML2 was initiated under the sponsorship of the Hydro Domain Working Group (HDWG) of the Open Geospatial Consortium (OGC) for intended adoption by the international community as the authoritative standard for the transfer of groundwater feature data, including data about water wells, aquifers, and related entities. GWML2 harmonizes the needs standardized in GWML1 and the EU's INSPIRE models related to hydrogeology.

www.acwi.gov

Conceptual Model: a technology-neutral Unified Modeling Language (UML) schema denoting the semantics of the domain

Logical Model: a GML-specific UML schema that incorporates the OGC suite of standards

XML Schema: one possible syntactical encoding of the logical schema using XML Schema Definition (XSD).

DRAFT

Developed use cases Conceptual data model completed Logical data model completed Instance documents generated Test web services in development Draft engineering report in progress