[comp.sys.mac] Hierical Block Diagrams?

sci@kestrel.UUCP (03/05/87)

	We are thinking of building a program that permits the drawing of
Block Diagrams, Structures, Circuit Diagrams, etc. I have looked at the
various available programs, and they don't seem to quite do the job that
we want. The basic specs seem to be as follows:
	1) To select and name a type of block from a use definable set of 
blocks.
	2) Each block will have an associated set of parameters and input and
output pads.
	3) Define the values of the parameters.
	4) Place the block on a 2-d "page".
	5) Interconnect the blocks.
	6) Be able to group a set of blocks into a Super-block, or put blocks
in an existing block, and permit the connections to be shown when looking at
the super block and to be moved from the super-block into the blocks that
"define" the super-block.
	7) Be able to move, add, delete, etc, blocks and have the connections
follow.
	8) etc...
	9) Then to be able to output the "data base" so that other programs can
analysize the structure.

	It looks as tho the closet fit is the program "DESIGN", but it doesn't
quite have the capabilities that we need.

	Questions...

		1) Are there sources that are around that we could use as a
base for such block diagramming?

		2) What am I doing wrong, I uploaded Blob-Manager, but seemed
to be missing TransSkel {I think}. Where is it, and is BlobManager useful for
my purposes.

		3) When I sent this I was warned that it would go to the entire
world. Is there a way to sent a message to a "moderator" who could suggest a
more selective distribution list?

			Thanks...