A Summary of Report of the Inquiry Into The London Ambulance Service Lawrence Chung Thanks to Sam Supakkul London Ambulance Case Study Adopted from Supakkul s working memo problems behind problem frames A Computer Aided Dispatch CAD system deployed in October 1992 Business goal to meet the new regulation Ambulance arrives in 14 minutes Dispatched in 3 mins from the call Arrived at scene in 11 mins System function Automate the tracking and dispatching of ambulances London Ambulance 1992 dispatch system Nasima Begum mishap scenario Nasima Begum with liver condition 4 emergency calls Call Taker Died after waiting the only available ambulance sent to a non emergency call 53 minutes for an ambulance live d o nly 2 b lock s from the ho spital Note some source Guy Fitzgeral s The Turnaround of the London Ambulance indicated this incident occurred after LAS went back to use the manual dispatch in June 1994 after the mishap in 1992 while some source cited this incident in the 1992 mishap is it D Dalcher s Disaster updated 12 00 p m EDT Thu May 1 2008 Video Dispatcher falls asleep 3 01 Clinton meets with Indiana families LIVE McCain campaigns in Cleveland Now Free Obama speaks in Columbia City updated 11 41 p m EDT Fri May 2 2008 Popular News Hee Haw comedian dies at 66 One boy one girl one dorm room 911 caller ignored killed London Ambulance 1992 dispatch system Successful scenario Report current location and status Ambulance Crew at station Patient Caller Report current location and status Incident info processed by Dispatch system Request for ambulance Call Taker Dispatch System Dispatch closest ambulance dispatched in 3 minutes from call Mobilize to scene moblized to scene in11minutes from dispatch Ambulance Crew away from station What s the problem London Ambulance Case Study A Computer Aided Dispatch CAD system deployed in October 1992 Business goal to meet the new regulation Ambulance arrives in 14 minutes Dispatched in 3 mins from the call Arrived at scene in 11 mins System function Automate the tracking and dispatching of ambulances Many died from not getting care in time An 11 year old girl died of a kidney condition after waiting for 53 mins A man died of heart attack after waiting for 2 hours Multiple ambulances sent to the same incident Lost track of the ambulance status such that operator had to call the caller back to check if an ambulance had arrived A workshop in software engineering concluded NFRs non functional requirements were not considered early in the development process among other organizational and software engineering mistakes