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Introduction to Sahana
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Biplov BhandariSahana Software Foundation Developer
Research Associate, AITbiplov@ait.asia, bionicbiplov45@gmail.com
THE GCES IT Mahotsav Overview1. We will look into the overview of Sahana Software
Foundation and one of the platform EDEN.
2. We will also look into some of the deployments of Sahana EDEN.
3. We will look at one of the problem and try to come up with the solution from Sahana.
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What is Sahana?● Open Source platform for Disaster Management Platform.● Helps organisations and communities prepare for and
respond to disasters● Can be rapidly customized to adapt to existing processes and
integrate with existing systems● Data is easy to share with flexible Import/Export options and
flexible Access Control● Deployed in over 25 countries● Free to use: MIT License
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How did it start?During Indian Ocean Tsunami 2004, Sri Lanka IT developers get together to solve the key problem of the time: Missing Persons
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How can Sahana Help?● Provides a directory of organisations, offices and people
○ Supports communication and coordination● Records what resources are available and where
○ Shares information on Who’s Doing What Where● Identifies where there are gaps and overlaps● Manages and Integrates multiple types of information in a
single platform● Provides Situational Awareness
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Disaster Management Lifecycle
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Features of Sahana● Authorization: All data is controlled by configurable
permissions which allow for granular access by user, organisation or office
● Mapping: All geographic data can be displayed on maps● Reporting: All data can be filtered and viewed as pivot
tables and charts● Data Integration: Data import/export to Spreadsheets,
web services via RESTful API (XML/ JSON)● Communications: can send/ receive messages over
many different channels (Email, SMS, Twitter, FTP, etc.)● Customisable: can be adapted to local contexts
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Multiple LanguagesS
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Themes
Multi-Stakeholder Authorization● Control Access:
○ across multiple organizations○ within organizational hierarchy
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Mapping
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Identifying where the greatest needs areS
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Communication and Social MediaS
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Using Sahana - Community
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14● Sahana Software Foundation● Google Summer of Code● Google Code-In● Commercial Companies● Documentation:
● Wiki● Book
● Mailing List (https://groups.google.com/forum/#!forum/sahana-eden)
● IRC (http://webchat.freenode.net/?channels=sahana-eden)
Non-Governmental OrganizationsS
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● Red Cross / Red Crescent○ Resource Management System
● UN World Food Programme● Occupy Sandy
○ NYC Prepared● UN OCHA
○ Humanitarian Data Platform● Asia Disaster Preparedness Center
○ Disaster Risk Reduction (DRR) Project Portal
GovernmentsS
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● Nepal○ Department of Hydrology and Meteorology
● City of Los Angeles, USA○ Give2LA
● Philippines○ Relief Goods & Inventory Management System
● Washington State, USA○ Maritime Common Operating Platform
● Portugal, India, Japan, Taiwan,Chile, Colombia, Mexico
ArchitectureS
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Web Server Cherokee
Application Sahana
Framework Web2Py
Programming Language Python
Database PostgreSQL
Operating System Linux
Architecture
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18● MVC (Model / View / Controller)● RESTful interfaces
○ Data Resources are primary URLs○ /application/module/resource/1[.xml]○ eg. /eden/cap/alert/1.cap○ Web services using XSL
● RAD (Rapid Application Development)○ Database auto-migrated from code models○ CRUD (Create Read Update Delete) forms auto-
generated○ Reports & Maps
Deployment OptionsS
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Host locally in the command center
on a LaptopHost in the Cloud
Synchronize these together
IntegrationS
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Web ServicesS
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/eden/static/formats/cap/import.xsl & export.xsl
File SystemS
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Hands-onS
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● CRMT Template Hands-on
● DRMIS Template Hands-on
● Sample Form Design
Thank You
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