internet mapping technology

8/14/2019 Internet Mapping Technology

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Charlie Crocker

Vice PresidentFarallon Geographics, Inc.

An Overview of InternetMapping Technology


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Why Mapping on the Internet?

Ideal environment for collaboration and

distribution of spatial information.


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Internet Mapping Benefits

Proven collaboration environmentMakes spatial data accessible to non-

technical people

Allows for centralization of data,application code, and security

Simplifies software and application codeversioning and upgrades

Provides the lowest cost for distributingand collecting spatial data


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DOC Mandate

Data distribution

Realtors

Insurance Co.

Researchers

Others

Public access Data consolidation

Multiple formats

Example: DOC Seismic Hazard Mapping


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Data sharing enhances collaboration


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Internet Mapping

Components

Presentation Tier

Web Server

RDBMS

Application Code

Map Server

Files

World Wide

Web

HTTP

HTTPS

Web Browser Web Browser

Web Browser

Web Browser

Data Tier

Business Logic Tier

Web ServerApplication Code

Internet Map ServerData/Database

Web Browser


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Web Server

Sets up communication btw client and yourapplications: spatial server, databases, fileservers, remote resources

Manages, requests, responses, andauthentication

Runs server side code or calls compilationengines

Keyhole to network; security holes start hereMany options depending on operating system

Examples: IIS, Websphere, Apache, others



Web Browser


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Internet Mapping

Components

Presentation Tier

Web Server

RDBMS

Application Code

Map Server

Files

World Wide

Web

HTTP

HTTPS


Web Browser

Web Browser

Data Tier

Business Logic Tier



Web Browser


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Application Code

Processes users input Calls IMS and other objects Generates wrappers

Produces dynamic response that is sent byweb server to the client

Use Wizards to generate code for simplewebsites

Custom code to support specific workflows Examples: ASP, JSP, JAVA, .NET, C++, etc.



Web Browser


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Internet Mapping

Components

Presentation Tier

Web Server

RDBMS

Application Code

Map Server

Files

World Wide

Web

HTTP

HTTPS


Web Browser

Web Browser

Data Tier

Business Logic Tier

Web ServeApplication Cod

Internet Map ServeData/Databas

Web Browse


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Internet Mapping

Components

Presentation Tier

Web Server

RDBMS

Application Code

Map Server

Files

World Wide

Web

HTTP

HTTPS


Web Browser

Web Browser

Data Tier

Business Logic Tier



Web Browser


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Database/Data files

Data Files

Low web traffic volume

Read only functionalityRequires minimal IT support

Examples: Shapefiles, Access DBs,

DWGs, MID MIFS, etc.



Web Browser


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Internet Mapping

Components

Presentation Tier

Web Server

RDBMS

Application Code

Map Server

Files

World Wide

Web

HTTP

HTTPSWeb Browser

Data Tier

Business Logic Tier


Internet Map ServerData/DatabaseWeb Browser


Web Browser


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Web Browser

Provides user interface (GUI)

Sends requests to web servers

Processes responses: rendering html,

images, and DHTML

Tracks user history and user preferences

Captures and processes spatial and non-

spatial information Examples: Microsoft Won!!


Internet Map ServerData/DatabaseWeb Browser


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Leveraging Your Applications

Web Services access external

services

Spatial Portals consolidate external

and internal services


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Web Services

Software components available over the web using UDDI,SOAP, GML

Insulates you from the expense of building and maintainingdata and tools

Significant savings of time, expense, and computer

resources Example Web Services:

Free services (some of Geography Network, etc.)

Subscription services (ESRI, TeleAtlas, etc.)

Custom services

Available to both web and desktop Geocoding example


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Web Services Example

Web services is to a developer what a well-built web

mapping application is to your user base.

Address geocoding Expensive (data)

Dynamic (updates)

Complicated HW/SW Geocoding Service

Pay for usage

Simple to deploy (API)

Web and desktop


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Spatial Portals Consolidate multiple

disconnected internetmapping sites and webservices into oneenvironment

Enhances collaborationacross the enterprise and

internet No restrictions on the

technologies that can beintegrated (providerschoose technology)

Re-usable services

hosted on differentservers

Features of applicationsintegrated as services


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Simplifying Technology

Internet Mapping - ideal for collaboration anddistribution of spatial information.

Leverage Internet Mapping using:

Web Services access external services andsave money

Spatial Portals consolidate external andinternal services and save money


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Charlie CrockerFARALLON GEOGRAPHICS, INC

[email protected]

(415)227-1140

www.fargeo.com
mailto:[email protected]:[email protected]

internet mapping technology

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