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GDACSToward Next Generation
Global Disaster Alert and Coordination System
Jeongmin Lee, Nikhita Kumar, Thiru, Jeff McElhannon, Yue Ren
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Introduction
GDACS
AutomaticDisaster Alert System
Response Coordination System (V-OSOCC)
● GDACS: Global Disaster Alert and Coordination System○ Provides real-time automatic disaster alert and
response coordination system ○ Operated by UN OCHA and JRC (Joint Research
Centre)
● Process of Disaster Response
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Diagram from "Effective Coordination"by Gísli Ólafsson, Microsoft Corporation
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Complexity of Relief Coordination and Information flow
○ Varies by scale of the disaster, for Haiti earthquake in 2010, 100+ international NGOs10+ UN agencies(UNICEF, UNDP, WFP, etc.)
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V-OSOCC● Virtual On-Site Operations and
Coordination Center○ Dedicated to Disaster response
coordination○ Sub-part of GDACS ○ Supports information exchanging,
relief coordination on disaster response field work.
○ Basically, actors need to know..■ What's Happening?■ Who's going?■ What's needed?
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V-OSOCC (cont'd)● Various information
○ 10 Sections(Coordination, Logistics, Contacts, Situation, Satellite Images and Map, Relief team and item info)
○ 24 different kinds of information(e.g., Team list, Team status, Situation Map, Affected area map, Contacts, Satellite images, Situation Report, etc.)
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V-OSOCC (cont'd)
● Presentation of information○ Summary text for each section○ Usually information is generated by Microsoft Word,
Powerpoint and contained in PPT, DOC, PDF file○ Uploaded as an attached file and link is provided:
Static information○ Difficult to search, filtering, management content
dynamically
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Critique of V-OSOCC
● Text-based website design
● Poor navigation system● Few broken links● Text at few places not
readable
● Browser inconsistency● Could have been a multilingual website
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Critique of V-OSOCC (contd...)
Shannon’s information theory:Information uncertainty increases when noise interferes with the signal between the sender and receiver.
Noise for current system :Lack of ‘findability’ & the Information Presentation
● No search option.● Most of the data in PDF/Word files.● No means of retrieving information based on time or
geolocation.
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Conceptual Model
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Logical Model
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Implementation Architectures
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Overview of Re-Implementation
● Functionality Improvements○ Search ○ Online document viewing / version history○ Dynamic maps/GIS
● User Interface Improvements○ Navigation, breadcrumbs○ Semiotics○ Item placement
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Added Functionality - Search
● Search functionality - previously not available
● Search bar provided● Entering a search string
brings user to advanced search page○ Ability to filter results
with a number of different options
○ Results that have geolocation markup are mapped
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Improved Functionality - Document View
● Core improvement is the ability to view all documents within the website. ○ Information is entered using a
web-based editor, similar to a blog content tool■ stored in XML, allows for
searchability○ Data within the document can
be marked up■ Geolocation■ People / teams■ etc...
○ Previous versions of the document/map can be viewed by using the timeline feature
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Improved Functionality - Maps / GIS
● Adds functionality to view and dynamically modify maps○ Similar to Google Earth
with the layering of different data
○ Map data is created using a web-based GIS authoring tool
● Mashup of different map layers allows for new information discovery○ Single map views also
provided
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User Interface Improvements● Navigation
○ Current page is emphasized in left navigation bar○ Breadcrumbs are presented to give the user an idea
of their current location within the system○ Menu items and menu hierarchy are clearly shown
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User Interface Improvements● Semiotics
○ Used icons to give additional reinforcement on the purpose of various buttons
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Demo
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Questions?