That's interesting. Toyota would be one of the last companies I'd expect to hear that about. They're notorious in Quality circles for taking Quality seriously; at least as far as their production line is concerned. Do they not apply that same philosophy to in house software?
The slides are very bad quality work, the guy clearly never worked in the automotive world.
Example: the automotive safety norms is called ASIL (iso26262), and it is perfectly ok to have a single ADC chip sampling the accelerator pedal input. SIL safety levels requires much more rendundancy than ASIL which is aimed at enabling carmaker to build affordable yet safe systems.
Another is the race conditions. Unless toyota/denso is very stupid, I really doubt than more than one thread is running on the CPU, because automotive OSEK typically run in locked step mode, meaning everything is run in one sequential thread, even if there are several cpu core.
Thirdly, global variables, as there is just one thread, are a perfectly ok thing to use, provided you add a special thing in the OS which guarantees that all inputs are frozen when a block of functions are called.
It is a very orientated slideshow with unproven claims, he discredit himself.
The Toyota / Arthur Deming quality philosophy is really applicable to repeatable process where quality control means detecting abnormal variation amidst normal variation.
