Jean-Marc Valin wrote: > > I don't consider objects to be a layer... they're just objects (now that's new > ;-) ) Technically, applications (and maybe objects) are not part of VSH. But in Loci, they were called 'back-endware'. These 'dataflow * layers' were collectively called 'middleware', and the user interfaces were called 'front-endware' in Loci. I think these terms can still be used. Jeff -- +----------------------------------+ | J.W. Bizzaro | | | | http://bioinformatics.org/~jeff/ | | | | BIOINFORMATICS.ORG | | The Open Lab | | | | http://bioinformatics.org/ | +----------------------------------+