1. APRIL 30, 2015 COWI PRESENTATION 1 A Holistic Approach For The Development And Implementation Of Robust And Cost- Effective Distributed Webgis Business Solutions by Murali Krishna Gurram, Simon Musäus, Krishna Kumar Naithani and Nooka Ratnam Kinthada Murali Krishna Gurram COWI India Pvt. Ltd. Date: 8 th Feb., 2012

2. 2 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 APRIL 30, 2015 COWI PRESENTATION

3. 3 WebGIS API – MapServer (Opensource) Geodatabase – PostgreSQL/PostGIS (Opensource) Development Language/Platforms Programming Language/Scripts: C#, Asp.Net (Web Development) Programming Environment: MS Visual Studio 2010 DEVELOPMENT ENVIRONMENT APRIL 30, 2015 COWI PRESENTATION

4. 4 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 APRIL 30, 2015 COWI PRESENTATION

5. 5  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 APRIL 30, 2015 COWI PRESENTATION

6. Use Case Model Design of the WebGIS System 6 OVERALL SYSTEM ARCHITECTURE APRIL 30, 2015 COWI PRESENTATION

7. APRIL 30, 2015 COWI PRESENTATION 7 SYSTEM ARCHITECTURE

8. 8 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 APRIL 30, 2015 COWI PRESENTATION Operational and functional; Interactional and transactional; Integration and interoperable; and Back-up and maintenance

9. 9 ›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..) APRIL 30, 2015 COWI PRESENTATION

10. 10 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 APRIL 30, 2015 COWI PRESENTATION

11. 11 ›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 APRIL 30, 2015 COWI PRESENTATION

12. APRIL 30, 2015 COWI PRESENTATION 12 EXAMPLES OF THE APPLICATION BEING IMPLEMENTED

13. APRIL 30, 2015 COWI PRESENTATION 13 EXAMPLES OF THE APPLICATION BEING IMPLEMENTED

14. APRIL 30, 2015 COWI PRESENTATION 14 EXAMPLES OF THE APPLICATION BEING IMPLEMENTED

15. APRIL 30, 2015 COWI PRESENTATION 15 EXAMPLES OF THE APPLICATION BEING IMPLEMENTED

16. APRIL 30, 2015 COWI PRESENTATION 16 Any Questions? Dr. Murali Krishna Gurram Desarrollo de Negocios Latino América COWI India (P) Ltd. 121, Udyog Vihar, Phase I Gurgaon, India PIN 122 016 Teléfono : (+91) 124 409 2500 (Ext. 110) Fax: (+91) 124 409 2570 Mail: sgc@cowi.insgc@cowi.in www.cowi.inwww.cowi.in / www.cowi.comwww.cowi.com