Breadcrumb

Appendix A Simple descriptions of key tables within the asset database

Microsoft Access is used to manage information about each asset. The following tables are at the core of the structure of the asset database.

The source datasets (e.g. see Table 5) are organised into a standard format defined by the 'ElementList' table (TableA.1), as presented in Figure 4. Spatial elements from the ‘ElementList’ table are then selected and combined to create each asset, with elements from the same source dataset grouped according to attributes including group, subgroup and class (see Table 3) and name (see Table 4). Asset names are assigned according to the asset naming rules (e.g. see Table 4), and a sequential unique asset identifier (AID) is assigned to each asset that is unique across all bioregional assessment (BA) assets.

The relationship between the 'ElementList' table and the ‘AssetList’ table (TableA.3) is many-to-one with one or more elements associated with only one asset. The relationship is recorded in the ‘Element_to_asset’ table (TableA.2) using the element identifiers (ElementIDs).

The ‘Element_to_asset’ table also links directly to the ‘Decisions’ table and the ‘AssetList’ table. The ‘AssetList’ table is the basis of the water-dependent asset register. The water-dependent register is a subset of the assets that have been selected for inclusion in the bioregional assessment. They are selected on the basis explained in Section 4 .

Table A.1 'ElementList' table

Attributea

Description

ElementID

Bioregional assessment (BA) element identifier (unique per spatial feature across all BA elements)

Name

A name given to each element either by the natural resource management (NRM) region or copied from a name field in an alternative dataset. Not all elements will have a name.

Group

The highest level of the BA classification hierarchy. Values are either ‘Economic’, ‘Ecological’ or ‘Sociocultural’ (see Table 3).

SubGroup

The second tier of the BA classification hierarchy (see Table 3).

Class

The third tier of the BA classification hierarchy (see Table 3).

Depth

Values are currently set to either ‘surface’ or ‘subsurface’.

Source

The dataset from which the element was sourced.

ListDate

The date the element was added to the element list.

Geometry

The type of spatial representation of the asset (point, line, polygon).

PAE_Region

The bioregion or subregion that the preliminary assessment extent (PAE) relates to. This element list was compiled for BA work in relation to a particular bioregion or subregion. The outer boundary of the area used to select the elements for inclusion in the assessment is spatially defined by the PAE. The PAE does not necessarily coincide with the boundary of the bioregion or subregion (e.g. an asset could be assessed in the PAE of the Namoi subregion but be physically located in the Gwydir subregion).

PAE_Date

The date of the ‘approved’ PAE which was used to select the elements to be included in the element list.

aPunctuation and typography appear as used in the asset database.

Table A.2 'Element_to_asset' table

Attributea

Description

AID

Bioregional assessment (BA) asset identifier (sequential and unique per asset across all assets in the Bioregional Assessment Technical Programme).

AssetName

Descriptive name given to each asset. All elements will have a name.

ElementID

BA element identifier (unique per spatial feature across all BA elements).

M1

Flag indicating whether the asset meets ‘Test 1’ i.e. inclusion with the PAE (‘Yes/No’).

DecisionNote

Rationale for decision about the asset.

MadeDate

Date decision was made.

aPunctuation and typography appear as used in the asset database.

Table A.3 'AssetList' table

Attributea

Description

AID

Bioregional assessment (BA) asset identifier (sequential and unique per asset across all assets in the Bioregional Assessment Technical Programme).

Name

Meaningful, descriptive name given to each asset.

Group

The highest level of the BA classification hierarchy. Values are either ‘Economic’, ‘Ecological’ or ‘Sociocultural’ (see Table 3).

SubGroup

The second tier of the classification hierarchy (see Table 3).

Class

The third tier of the classification hierarchy (see Table 3).

Depth

Values are currently set to either ‘surface’ or ‘subsurface’.

Source

The dataset from which the element was sourced.

ListDate

The date the element was added to the element list.

Geometry

The spatial geometry type representing the asset (point, line or polygon).

PAE_Region

The bioregion or subregion that the preliminary assessment extent (PAE) relates to. This element list was compiled for BA work in relation to a particular bioregion or subregion. The outer boundary of the area used to select the elements for inclusion in the assessment is spatially defined by the PAE. The PAE does not necessarily coincide with the boundary of the bioregion or subregion (e.g. an asset could be assessed in the PAE of the Namoi subregion but be physically located in the Gwydir subregion).

PAE_Date

The date of the approved PAE that was used to select the elements to be included in the element list.

AssetArea

Calculated area of the asset.

aPunctuation and typography appear as used in the asset database.

Last updated:
13 April 2016