USAF feels Oleg's pain

[swiss]

Originally Posted by Azimech

Can you believe carmakers wish to delete the physical connections between steer-wheels and pedal-brakes? I'm no luddite, but this goes too far. In a car you don't have the time to switch on a backup like in a plane.

I thought we are already there.

Not a single of those jets can fly in space yet the Space Shuttle's software is incredibly tiny in comparison. Instead of all those fancy computerized gizmo's why not develop a plane that can fly to twice the altitude of your competition so you can again dictate any rules of engagement? Think the X15 had a computer on board?

The shuttle has ~2million lines.
http://www.nap.edu/openbook.php?record_id=5018&page=10

and:

The book "Code Complete" by Steve McConnell has a brief section about error expectations. He basically says that the range of possibilities can be as follows:

(a) Industry Average: "about 15 - 50 errors per 1000 lines of delivered code." He further says this is usually representative of code that has some level of structured programming behind it, but probably includes a mix of coding techniques.

(b) Microsoft Applications: "about 10 - 20 defects per 1000 lines of code during in-house testing, and 0.5 defect per KLOC (KLOC IS CALLED AS 1000 lines of code) in released product (Moore 1992)." He attributes this to a combination of code-reading techniques and independent testing (discussed further in another chapter of his book).

(c) "Harlan Mills pioneered 'cleanroom development', a technique that has been able to achieve rates as low as 3 defects per 1000 lines of code during in-house testing and 0.1 defect per 1000 lines of code in released product (Cobb and Mills 1990). A few projects - for example, the space-shuttle software - have achieved a level of 0 defects in 500,000 lines of code using a system of format development methods, peer reviews, and statistical testing."

http://amartester.blogspot.com/2007/...s-of-code.html

I like computers, that's not it. But I rebuilt my own 25 year old car and thank myself, I can repair it all by myself. The only computers that thing has operate the digital dash and the radio.

I have a 20year old car too, stored for the past 5 years - but last time I checked it was plagued by electronic bugs - not even related to SBEC.