On Wed, 13 Jun 2007 14:03:15 -0500, Paul Gilmartin <[EMAIL PROTECTED]> wrote:
>Theology. Dogma. Simply to start doing it right, you must >stop doing it wrong. Somehow I feel a major culprit is VTAM >because whenever this issue arises an expert starts spouting >VTAM jargon. Get rid of VTAM; let TCP/IP connect directly to >the TMP input/output data streams. I've looked at this, and "it isn't pretty" doesn't even begin to describe it. Unless IBM has severely modularized things since the last non-OCO version of this stuff, it is full of hardcoded knowledge of not only VTAM (and TCAM!) module names, but of their various quirky behaviours. This is one of those situations where everyone agrees that it would be a Good Thing to replace some part of the legacy stuff, but everyone disagrees on just which parts are legacy junk, and which are the very core of the architecture. When I worked for Amdahl/Antares on Huron, we had complete control over the applications that drove 3270 screens, and once all the real green-screens had gone away, it began to make sense to consider designing our own new 3270 protocol along with an emulator that would exploit it. But it never happened, because there were just too many layers (CICS, VTAM, TSO, ...) that all had to be fixed at exactly the same time. Tony H. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
