Stanley Allen [SMTP:[log in to unmask]] wrote: > First question: do we really believe that programmers will be attracted to Ada on the basis > of reliability? I know that some will, but what evidence is there to persuade us that these > are more than a small minority of programmers? It appears to me that, in America > especially, programming is an ego-enhancing activity, the vast majority of practitioners > being males interested in the creative and fun aspects of programming, with a focus on > new or exotic technology features. The satisfactions that the average programmer seems > to find in developing software are not very closely related to the goals we often list as > "software engineering principles": reliability, maintenance, etc. I'm guessing you are right about most ... parenthetically, is your use of the word "programmer" intentional here, over "software engineer"? Are there really two different classes of jobs here? I know that perception was very much the case 19 years ago when I was a College Senior. My fellow CS grads weren't interested in stooping to accepting a job with the title "Programmer". I basically picked up that perception and assumed there was some accuracy to it. So... might it be accurate to say that "programmers" are attracted to languages as you describe, while "software engineers" are attracted for other reasons? Maybe that's a trivial point, I don't know. Either way, those who are looking for a language that's fun to program in are probably in the majority. > Furthermore, it seems to me that our attempts to sell Ada on the basis on reliability, > safety, "critical" systems certification, etc. have a touch of bad faith in them. By this I > mean that I distrust you people whenever you claim that "reliability" or "safety" are the > main reasons that you like to program in Ada. It's a bit like hearing people say they > subscribe to Playboy for its fine journalism. You just want to say, "Come on, get real!" > My thesis is: programmers (like you) program for pleasure first; other considerations come > second. What aspect of Ada first appealed to you, struck your fancy, aroused your > interest? For me it was tasking. For you perhaps it was private types, generics, or other > various features that lend themselves to the creative impulse in programming. I doubt it > was range checks. Speaking as a "software engineer" ;-) When Ada came in to my life, I was at what a coworker of mine likes to call stage one on the path to Ada Nirvana: "It's just another programming language". Well, sort of. What I mean is that I did not have the hubris to go around saying, "I will only program in language <such and such>". I had just joined a new project with some significant degree of company visibility, and frankly it was an exciting position that made me say, "program in xyz? Sure, why not!" Actually the project was directly tied to the new DoD policy requiring Ada in all new projects. The project I was joining was a core technology group charged with developing a software engineering environment for Ada, and all software we wrote had to be in Ada. I learned Ada because it was required for the job, not because I was attracted to it. I was attracted to the idea of improving the quality of software development in the company, as well as the idea of belonging to a group that other projects depend on (we all like to feel needed ;-) ). As for what feature of Ada was the most sexy to me, well, let's see. I liked the syntax better than both Pascal and C, but we won't go there ;-) I really don't know. If anything, the fact that implicit operators were not automatically directly visible was actually a pain in the butt. Ada was the first language I had run into that had that "feature". I quickly developed a hatred for the "use" clause, and to use the "goto" was literally unthinkable. I can't really say there was anything sexy about Ada. I mostly found myself poo-pooing the complaints of others. My favorite has always been "I have to type too many characters" in defense of "use" clauses. Maybe as a touch typist, I'm a bit prejudiced, but this complaint has always struck me as the epitome of laziness. To me, Ada is a means to an end, not an end in and of itself. Furthermore, the most disturbing implication to me over the last couple of years with the termination of the Ada Policy is that somehow all the work that was done to design the best language is worth doodly-squat. Call me a trusting soul, but when I heard that Ada was a language designed over a number of years with the interests of the DoD in mind, I just assumed that Ada had SOMETHING going for it. Who am I to question that? So I didn't. And nowhere in my 11+ years with Ada has the language failed to live up to that trust. It seems like there's this mentality out here in Aerospace and Defense Land that automatically dismisses Ada and all the work that was put into it. I think I get it; I just don't buy it. > Second question: what's wrong with selling Ada as the real-time language of choice > instead of the safety-critical language of choice? Jeff Burns says: >> Ada may be better at real time, but C is the major player >> there and well established. It's an uphill battle to >> establish Ada as better than C for real time. > Unlike Tucker, I tend to believe that focusing on "critical" systems has the wrong > psychological results. The underlying message of such an approach is "Ada is good for > systems that absolutely must work -- so don't consider it for less 'significant' tasks." Doesn't selling Ada as the "real-time" language of choice also have the same type of underlying message? Indeed, no matter what focus you pick, by your argument, aren't you limiting Ada's outreach? --- James Squire Send my Spam to mailto:[log in to unmask] MDA^H^H^HBoeing St. Louis http://www.boeing.com Opinions expressed here are my own and NOT my company's --------------------------------------------------------------- "Were you like this when you were married?" 'Huh? Yeah.' "The woman was a saint." -- Ivanova and Sheridan, "A Race Through Dark Places"