sw desig and devel

1.sw desig and devel are entirely different things
2.A sw design that can be explained within a day or two will need atleast 6 months development with novices to implement
3.Most effective design is one where after design none of the developers need to communicate with each other.Absolute reduction of h2h interactions.
4.Still if the design does not understand leaves even single gap in requirement analysis the development can fail
3.development has many weak points because of multi human interfaces, code typing with io devices.logic error correction h2h,integration h2h,testing h2h/h2sw,debugging h2sw etc
4.a good design will have a solid framework
5.a good framework is reusable and extensible
6.It gives a clear demarcation at directory-file level,binary module level,absract module level(interface,context,token,framework,drv1,drv2,lib1 etc),class etc.

not related: ssl encrypts tcpip payload