[SystemSafety] Collected stopgap measures

[Derek M Jones]

Peter,

> I find it odd that people are so ready to criticise Boehm and his work. It is forty years ago, and

Boehm did some good work.  In particular he discusses the importance of
economic issues, which few people spent much time discussing then (this
was the early 1980s) and rarely discuss now.

> it was pioneering. Of course there are some things we would do differently. There are some things
> which Boehm himself did differently in his second large work, twenty years later. A dozen opinions

There were lots of cost estimation models floating around
when Boehm proposed COCOMO (the model that as really come
to define his work):

Perhaps the other well-known model is Putnam's:
https://en.wikipedia.org/wiki/Putnam_model

Models based on lines are code contain a large amount of uncertainty
because the is a lot of uncertainty about the number of lines of code
produced when different people/groups implement the same
functionality (in the same language):
http://shape-of-code.coding-guidelines.com/2013/09/20/how-many-ways-of-programming-the-same-specification/

-- 
Derek M. Jones           Software analysis
tel: +44 (0)1252 520667  blog:shape-of-code.coding-guidelines.com