June 2019) (Learn how and when to remove this template message). 5ESS used in a mobile telephone network. The 5ESS Switching System is a Class 5 telephone electronic switching system developed by ... ----------------------------------- Frank Wimberly
My memoir: https://www.amazon.com/author/frankwimberly My scientific publications: https://www.researchgate.net/profile/Frank_Wimberly2 Phone (505) 670-9918 On Thu, Dec 26, 2019, 8:36 AM Marcus Daniels <[email protected]> wrote: > Frank writes: > > > > “This was the telephone network in question.“ > > > > With the mobile carriers and VOIP, I wonder how much of that code is still > used? I once worked for a small company that wrote software to do billing > for long distance telephone carriers. I was amazed by the seemingly > arbitrary complexity. Complex at a policy and inter-organizational level, > not just the software. > > > > Marcus > > > > *From: *Friam <[email protected]> on behalf of Frank Wimberly < > [email protected]> > *Reply-To: *The Friday Morning Applied Complexity Coffee Group < > [email protected]> > *Date: *Thursday, December 26, 2019 at 5:39 AM > *To: *The Friday Morning Applied Complexity Coffee Group < > [email protected]> > *Subject: *Re: [FRIAM] IT is Not Sustainable > > > > At Bell Labs we sure didn't pay anyone by LOC. We also had code reviews > and software tools to enforce standards and very high pay. With a brand > new PhD I made more than all but the 3 most senior members of the CS > faculty at Pitt where I was a grad student. This was the telephone network > in question. > > > > Despite the high pay I disliked software administration methodology. The > disagreements between the software tool developers (version control, > integration of subsystems, compilers, etc) and the implementors of the > applications, such as call processing, were epic. Recall that Bell Labs > invented C and Unix. After 18 months I returned to Pittsburgh to work at > Carnegie Mellon in Robotics for two thirds the salary. > > > > Number 5 ESS was first deployed in March 1982, 4 years after work began. > I suspect that it didn't have 200 million lines of code then, but close to > it. Maybe Dave doesn't consider it an IT project but many of the software > tools that were developed were included in later Unix releases, I believe. > > > > It's going to be a beautiful day in Santa Fe. > > > > Frank > > > > > > ----------------------------------- > Frank Wimberly > > My memoir: > https://www.amazon.com/author/frankwimberly > > My scientific publications: > https://www.researchgate.net/profile/Frank_Wimberly2 > > Phone (505) 670-9918 > > > > On Thu, Dec 26, 2019, 1:28 AM Gary Schiltz <[email protected]> > wrote: > > Spot on. > > > > On Thu, Dec 26, 2019 at 2:29 AM Marcus Daniels <[email protected]> > wrote: > > Most programmers won't struggle to rationalize or improve code written by > other people. The problem is that people are selfish. They think that > their 10K LOC problem is beautiful and nimble, but that 1M LOC was once > that too. It's the behavior of teenagers. > > On 12/25/19, 10:47 PM, "Friam on behalf of Russell Standish" < > [email protected] on behalf of [email protected]> wrote: > > It's all about the LOC! Actually, I kind of agree - having worked on > some MegaLOC codebases that functionally seemed to be no more complex > than a 10KLOC project I'm involved in, the 10KLOC project is much more > nimble - compile times are far less, making changes to the code easier > and bugs less troublesome to winkle out. > > I've also refactored or rewritten pieces of code to slash the LOC by a > factor of 3 or more for that particular section (eg 3KLOC -> 1KLOC) - > but usually when bugs and problems kept on cropping up in that > section. > > Even though the LOC is an entirely bogus measurement - if you paid a > programmer by LOC, you'd get boilerplate and crappy comments. > > -- > > > ---------------------------------------------------------------------------- > Dr Russell Standish Phone 0425 253119 (mobile) > Principal, High Performance Coders > Visiting Senior Research Fellow [email protected] > Economics, Kingston University http://www.hpcoders.com.au > > ---------------------------------------------------------------------------- > > ============================================================ > FRIAM Applied Complexity Group listserv > Meets Fridays 9a-11:30 at cafe at St. John's College > to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com > archives back to 2003: http://friam.471366.n2.nabble.com/ > FRIAM-COMIC http://friam-comic.blogspot.com/ by Dr. Strangelove > > > ============================================================ > FRIAM Applied Complexity Group listserv > Meets Fridays 9a-11:30 at cafe at St. John's College > to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com > archives back to 2003: http://friam.471366.n2.nabble.com/ > FRIAM-COMIC <http://friam.471366.n2.nabble.com/FRIAM-COMIC> > http://friam-comic.blogspot.com/ by Dr. Strangelove > > ============================================================ > FRIAM Applied Complexity Group listserv > Meets Fridays 9a-11:30 at cafe at St. John's College > to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com > archives back to 2003: http://friam.471366.n2.nabble.com/ > FRIAM-COMIC http://friam-comic.blogspot.com/ by Dr. Strangelove > > ============================================================ > FRIAM Applied Complexity Group listserv > Meets Fridays 9a-11:30 at cafe at St. John's College > to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com > archives back to 2003: http://friam.471366.n2.nabble.com/ > FRIAM-COMIC http://friam-comic.blogspot.com/ by Dr. Strangelove >
============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com archives back to 2003: http://friam.471366.n2.nabble.com/ FRIAM-COMIC http://friam-comic.blogspot.com/ by Dr. Strangelove
