The Twitter Seminar On The Development Of Error Free Software Continues

CAN WE PREVENT ERRORS DURING SOFTWARE DEVELOPMENT?



It is important to detect and properly respond to an error


condition during the execution of the product.



It is also very important to prevent errors in the software

development process.



Perhaps we should look again at the development of military

hardware, circa, 1980 s.



In the hardware world, Quality Assurance begins with the

selection of a set of parts.



Management selected a set of Integrated Circuits and the

Engineers were required to use them in the design.



Would you believe it if I told you that there is an software

equivalent to the integrated circuit?



There is a "software part" equivalent and it is not an object

(which is more like a circuit board).



We can find our "software part" in the history of software

engineering.



Specifically, it is the macro instruction set in the

macro-assembler circa 1990.



These macroswere used to define common multi-instruction

processes such as 4-byte addition in a Z80 machine.



Once defined, these macros were never changed. They became

standard "Software Parts".



Unfortunately, the use macro instruction set was optional

in the development of an assembly language program.



WHATIFWE had development software tool that produced source

code exclusively from a set of macros?
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