On 11 July 2012 17:09, Bhaskar, K.S <[email protected]> wrote:

>> Can you expand on "chain" and "trees" a little bit ?

> [KSB] Sure.

> in environment B have a gtmroutines environment variable that gives them a
> routine search path of (B,A).  So, any customization routines for scheduling
> and lab go into B, and processes in B will find these routines earlier in
> the search path than routines with the same names in A, but for routines
> that are not in B will find the routines as distributed in A.


Inheritance and sub-classing.
One of the failures of commercial proprietary systems I've seen is
they carefully avoid that, instead forking and then getting lost.

So good for vista/GT.M


-- 
Adrian Midgley   http://www.defoam.net/


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