Download Internet GIS Application Framework for Location

Internet GIS Application Framework
for
Location-Based Services Development
Dragan Stojanovic, Slobodanka Djordjevic-Kajan
Computer Graphics & GIS Lab, Computer Science Department
Faculty of Electronic Engineering, University of Nis
Yugoslavia
dragans@elfak.ni.ac.yu
Internet/Web-based GIS

Internet/Web GIS: for everyone, from everywhere
 Architecture:
– server-side vs. client-side; thin, medium, thick clients
– multiple-tiers, components, Web services

ISO/TC 211
 OpenGIS
Location Based Services

Importance of location in space and time for
business, consumer and government sectors
 LBS = f (Internet GIS + Positioning+ Wireless)
 GIS brings the truth value to LBS, providing geoinformation and geo-processing services based on
location of mobile user
 Three LBS generations
– stationary users & wired connection
– mobile user & rough location & limited services
– precise location & service triggering
LBS architecture
GSM / GPRS / UMTS
Stationary user
GPS / GLONASS/ Galileo
Location application
service clients
Mobile
user
Location application
services
GIS
GIS (Location)
application
server
Wireless-IP Platform
Internet
or
Intranet
Gateway
Services
Network
Management
Network
services
Positioning
server (GMLC)
Control
Location Information
GIS
(Location)
Information Server
Location
Data Sources
(DBMS, Files,…)
DSL &
Cable
PSTN
Temporal GIS application framework
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Application (component) frameworks
Argonaut project
STOMM - suite of spatio-temporal object
modeling and management technologies and tools
Object-oriented spatio-temporal data model
compliant with ISO/TC 211 and OpenGIS feature
geometry standards
Architecture-oriented application frameworks
– dSTOMM (desktop) & iSTOMM (internet)
STOMM data model (1)
+ s p a tia l p ro p e rty
G e o g ra p h ic O b je c t
Evo lu t io n
Cartography 1..n
S p a tia lO b je c t
User-defined
temporal class
Te m p o ra lO b je c t
TemporalObject
1
1 . .*
{o rd e re d}
1..n
TimeStamp 0..n
TemporalReferenceSyste
m
n
Instant
SpatialObject
Period
TimeStampCollection
MultiInstant
MultiPeriod
1..n Geometry
STOMM data model (2)

Spatio-temporal modeling
– Object-attribute timestamping by valid time
– Change of thematic properties (TGeographicObject )
– Changes of spatial properties (SpatioTemporalObject)
T e m p o ra lO b je c t
G e o g ra p h ic O b je c t
G e o g ra p h i cO bje c t
+ s p a t ia l p ro p e rt y
T G e o g ra p h i cO bj e c t
Te m p o ra lO b je c t
S p a ti a lOb j e ct
S p a t io Te m p o ra lO b je c t
iSTOMM

Compliant with the ISO/ODP 10746 guidelines
 Consistent with ISO/TC 211 & OpenGIS services
architectures
 iSTOMM supports 3-tiers Internet GIS
– Spatio-temporal information server
– Spatio-temporal application server and application
components
– Spatio-temporal service client components

Based on (object-)relational
XML/GML, CORBA, EJB
DBMS,
Java,
iSTOMM client (standalone or within Web browser)
iSTOMM GUI co mponents (CORBA & JavaBeans objects )
iSTOMM-based application client (CORBA & JavaBeans)
IIOP/ RMI
Internet
intranet
extranet
XM L, GM L, HTM L, VRM L, WM L
(HTTP/WAP)
Web server
iSTOMM application server
iSTOMM-based application co mponents (CORBA, EJB)
iSTOMM application components (CORBA, EJB objects)
Query language
(iSTOQL)
Visualisation &
S-T analysis, reasoning
animation (iSTOVAM )
& data min ing
)
Data conversion from/to STOMM
to/from XM L, GM L, VRM L, etc.
iSTOMM Kernel (Data management & integration)
Object-oriented implementation of STOMM data model (CORBA, EJB)
Recordset/Resultset
ODBC/JDBC
Intranet
Internet
iSTOMM spatio-temporal information server
STOMM data model
STOMM Extension
(user-defined classes)
(Object-) relat ional DBM S
(Oracle, MS Access, SQL Server, mSQL,…)
Information & applicat ion
resources
(DBMSs, GIS, ERP,
CRM, other IS,…)
iSTOMM application support

Processing of spatio-temporal-thematic queries,
through visual iSTOQL
 Visualisation and animation of spatio-temporal
objects through iSTOVAM
 Conversion from/to STOMM object format to/from
temporaly extended GML (or proprietary formats)
 Spatio-temporal analysis, reasoning and data
mining (only generic support to appropriate, userdefined components);
iSTOMM based "Yellow pages”(1)

Currently based on wired Internet access
 Yellow pages information (MapVect)
– City streets and numbers,
– Location and attributes of business & government

Mosaic of GIF images as background
 Oracle 8i (Spatial and interMedia) & Oracle 9iAS
 Hypothetical location of user: street address and
number, telephone number, closest well-known
city object, or geographic coordinates
iSTOMM based "Yellow pages”(2)

Request parameters in the form of:
– type and/or nature of the closest organisation that
he/she is attempting to find
– name, phone number, or some other unique and known
identifier of requested organisation

Respond to user:
– Display of organisation’s location on a map
– Determine and display the best and/or shortest route
from the hypothetical position, or
– Display thematic information of interest
Conclusions and future work
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Enable integration and chaining of iSTOMMbased LBS with Web services for administration,
business, transport, culture, leisure,…
Implementation of SOAP, WSDL, UDDI
Follow standardisation processes within ISO/TC
211 & OpenGIS (OpenLS)
Follow other LBS initiatives: MAGIC, LIF,…
Development & provision of useful LBSs
including mobile positioning and wireless access