Avionics Systems and Software

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Avionics Systems and Software
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Modern Air Transport System
Ground
Transportation
Air Transport System
System
Ticketing
system
Aircraft System
Air Crew
Navigation
System
Maritime
Transport
System
Source ISO/IEC 152882008
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Trends in Software Growth
Mission Control Ground Station
Instructions
Manned Systems
10,000
B-2
Skylab 2
B-1B
Apollo 17
C 17
Shuttle
F-16 c/d
Unmanned Systems
Apollo 7
1,000
Gemini 3
Galileo
100
Apollo 7
Viking
Gemini
10
Titan
Instructions Equivalent memory
locations in 1000
1
1960 65 70 75 80
85 90 95 2000
Date of Flight
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Example New Boeing 787

• Software development of Boeing 777
• 1,280 onboard processors
• 500,000,000
• Software Development for the Boeing 787
• 4,000,000,000

Lifecycle of a plane is about 50-70 years !
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Exercise

• Using the Reifer productivity tables, estimate
  the number of person-years required to develop
  the 787 software
• Cost per line of code 200
• Productivity (number of lines of code per
  staff-month) 100 lines

Donald J. Reifer, DACS Newsletter, Volume 7,
Number 2, June 2004. Industry Software Cost,
Quality and Productivity Benchmarks.
http//www.softwaretechnews.com/
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Exercise - Answer

• 4 Billion for software development
• Number of lines of code (for the airborne domain)
  4 billion/200 per line 20,000,000 lines of
  code
• Number of staff-months 20,000,000 lines/100
  lines per staff-month 200,000 staff-months
• Number of staff-years (based on 10 months of work
  per year) 200,000/10 20,000 staff-years