April 21, 2023

COWI PRESENTATION1

A Holistic Approach For The Development And Implementation Of Robust And Cost- Effective

Distributed Webgis Business Solutionsby

Murali Krishna Gurram, Simon Musäus, Krishna Kumar Naithani and Nooka Ratnam Kinthada

Murali Krishna Gurram

COWI India Pvt. Ltd.

Date: 8th Feb., 2012

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Objective

To develop the enterprise level WebGIS system which facilitates customized access, view, management of data, tasks, contributions, progress and status at all levels of business (managers, business development team, executives, client etc.).

Develop expert GIS systems and cost effective solutions for organizations in need.

DEVELOPMENT ENVIRONMENT

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WebGIS API – MapServer (Opensource)Geodatabase – PostgreSQL/PostGIS (Opensource)

Development Language/PlatformsProgramming Language/Scripts: C# , Asp.Net (Web Development)Programming Environment: MS Visual Studio 2010

DEVELOPMENT ENVIRONMENT

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•An incremental iterative life cycle model has been adopted for the development

•An evolution of waterfall model.

•Incremental and iterative methodology allows for the development and integration of smaller and manageable blocks in iterative mode.

DEVELOPMENT APPROACH

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The system architecture was aimed at implementing a distributed enterprise GIS deployed on a centralized server capable of handling mapping, geoprocessing and data management services.

Distributed GIS services enable the end user to manipulate GIS data and maps interactively.

The map services can directly interact with heterogeneous systems and platforms without the constraints of traditional client/server relationships.

There is no difference between the client and a server. Every GIS node embeds GIS program and geodata. Each GIS node can become a client or a server based on the task at hand.

A client is defined as the requester of a service in a network while a server provides a service.

OVERALL SYSTEM ARCHITECTURE

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Use Case Model Design of the WebGIS System

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OVERALL SYSTEM ARCHITECTURE

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SYSTEM ARCHITECTURE

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Factors taken into consideration for designing a scalable data model:

›There are various combinations of factors, taken into consideration for the design of a high level data model, namely,

DATABASE AND DATA MODEL

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› In addition to this, it is also required

Schema Validation

› A validation mechanism for checking the compatibility of other data schemas being integrating with the existing database.

Implementation of Generic Identifiers

› GI’s facilitates easy linking and rendering of external spatial data records by means of a common foreign key. Implementation of generic identifiers having a common spatial referencing system allows relating with a corresponding key or a list of keys in a foreign spatial database easily.

DATABASE AND DATA MODEL (contd..)

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• Scalability of the system achieved through the implement of reconfigurable and cost free common interfaces, functional libraries, semantic descriptions and data exchange protocols, already developed by third party developers following common standards.

• A set of open standards specified by OGC are to be strictly adhered as they allows for further extending the WebGIS system functionality beyond mapping and querying.

• Implementing of reconfigurable open interfaces, functional libraries, semantic descriptions and data exchange protocols like GDAL, OGR, GeoTools etc., allows for the fast realization of the system in a cost-effective manner.

SCALABILITY, STANDARDS AND PROTOCALS

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› Suggested model framework is characterized by the hierarchical organization of the WebGIS system functionality across the business categories, modules and spatial functions as defined by the scope of the application, which can also be easily remodeled by ‘drag and drop’ facility.

› The application framework comprises of various Application Interfaces and Business Modules

MODEL BASED FRAMEWORK

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EXAMPLES OF THE APPLICATION BEING IMPLEMENTED

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EXAMPLES OF THE APPLICATION BEING IMPLEMENTED

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EXAMPLES OF THE APPLICATION BEING IMPLEMENTED

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EXAMPLES OF THE APPLICATION BEING IMPLEMENTED

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Any Questions?

Dr. Murali Krishna Gurram Desarrollo de Negocios Latino América

 COWI India (P) Ltd. 121, Udyog Vihar, Phase IGurgaon, IndiaPIN 122 016

 

Teléfono : (+91) 124 409 2500 (Ext. 110)Fax: (+91) 124 409 2570Mail: sgc@cowi.in

www.cowi.in / www.cowi.com