Unless suppliers and users of geographic

data have a shared understanding of the kinds of real world

phenomena represented by the data, users will be

unable to judge whether the data supplied are fit for their purpose.

Feature cataloguing, examples

Harald Stavestrand,

Kom Phenthi Heng Xat

16.09.2008

ISO TC211 Standardisation Workshop,

Vientiane Lao PDR, 15 -19 September 2008

Geospatial-related standards may be categorized as:

• Content standards,• Access standards ore

• Exchange standards

Content standards:

Including

• land use codes

• surveyor codes

• data dictionaries for cadastre

• geographical place names

• bathymetry

• etc

Access standards:

Including:

• ISO 19100 series (Geographic information),• ISO 23950 (Information Retrieval―Z39.50), • Most of the OpenGIS standards

Exchange standards:

Including:• Geography Markup Language (GML)• ScalableVector Graphics (SVG)• Uniform Resource Identifiers (URIs aka URLs)

perhaps also:• ESRI shapefile• Autodesk *.dxf

Metadata

Data product specification Quality Services

Feature cataloguing

Spatial referencing by coordinates

19110 - Methodology for feature cataloguing

•ISO_DIS_19110[1].pdf

•ANZLIC Metadata Guidelines v2.pdf•standardised_national_feature_codes[1].pdf•icsm_hdm_feature_catalogue_v2004.mdb

“Mekong River Base GIS data” and “5_cities map data“

I like to think of a feature catalogue for GIS database as the legend of a ordinary map.

The Features in the

”Mekong River Base GIS-data”

The Feature Attribute Names in the ”Mekong River Base GIS-data”

The Feature Attribute Values in the ”Mekong River Base GIS-data”

icsm_hdm_feature_catalogue_v2004.mdb

A feature_catalogue database consist of tables

The heart of a database is tables linked together

This one should be according to ISO_DIS_19110.pdf

The 5 cities from Finmap

The Features in “the 5 city maps” from Finmap

The Feature Attribute Names

The Feature Attribute Values

The Features in Vientiane map of “The 5 cities”

“Area_polygon”

B. FAY

B. SAYLOM

B. SISAVAT

B. KAOGNOT

B. HATSADI

B. SISAKET

B.DONGPALANB. XIANGGNUN

B. SIDAMDOUAN

B. THONGKHANKHAM

B. Fay

B. Anou

B. Mixai

B. Saylom

B. Haysok

B. Sisaket

B. Kaognot

B. Nongchan

B. Xianggnun

B. Sisavat-Tai

B. Hatsadi-Nua

B. Hatsadi-Tai

B. Sisavat-Kang

B. Thongkhankham-Nua

B. Thongkhankham-Tai

Fay

Ar nou Sy lom

Hy sauk

Mea say

Kaognod

Si sa kate

Xieng nhuen

Sisavardkang

Si sa vard tay

Khoua luang nuea

Harth sa dee nuea

Harthb sa dee tay

Thong khan kham tay

Thong khan kham nuea

Fay

Si sa kate

Xieng nhuen

The Features in Vientiane map of “The 5 cities”

Area_polygonRoadVNameOther

• Feature names some times called

layer, coverage, themes etc

• Feature attributes some times called

fields, attributes

• Feature attribute values some times called

object types, types, objects, features, codes, values etc

• Instances some times called

feature instances, objects, population, record

Kåp jai !Thank You !

Harald Stavestrand p.t. Lao PDRstave.strand@gmail.com