Episode 70: OpenSysML with Chris Delp and Robert Karban

So, um, let, let's go a little bit more into detail.

So what, what are the typical use cases of OpenSysML? It, it's not a modeler, it's not an open source modeling tool.

Um, it provides services, as you already mentioned.

Uh, so what is it exactly?

I think you're talking about what I call the runtimes, which this might be our first controversial topic.

Uh-

[laughs]

Some people don't like that I call it the runtimes.

Um, but yeah, the, I, I think of it as the runtimes, like in an operating system when you run a computer program, it's, it's a runtime, right? So there are three open source sort of runtime platforms that have been contributed through the OpenSysML community right now.

Um, and I think we're hoping that they will converge.

Um, but those are just the runtime elements.

There's also, uh, a wiki where we're working with, um, Sandy Friedenthal to con- kind of consolidate a broader set of, uh, community assets, right? Like, um, how-tos and FAQs and links and explanation to, you know, how the standards body fits in, how the INCOSE community fits in, how to make libraries.

So if you look at, you know, Doug Rosenberg's recent release of his structured use cases library, that's a part of OpenSysML too.

It's a, it's a, uh, an open source library.

Um, and I think the vision would be that, you know, you'd have a whole model development kit in the future where you have, just like in Java, you have a whole bunch of libraries, um, uh, a performant runtime that is, uh, commercially licensed, you know, per- permissively licensed that's commercial friendly, um, the same way you see with any other language, right? No language in the world today, uh, I think can succeed without having an open source foundation.

Um-

Yeah, I mean, what, what is amazing to me is OpenSysML is, is a community, it's a, it's a movement, right? But if you look at concrete contributions, it's a long list actually.

Mm-hmm.

There's like, like 40 repositories right now that I would kind of, uh, consider part of the OpenSysML.

Uh, I don't know they call it collection, but, but, uh, that are relevant for in the SysML context, right? I mean, there's the, there's the runtimes or kernels, parsers, validators, evaluators, uh, kind of thing where there's like three contributions right now, two very complete ones, uh, and one work in, work in progress from different contributions, from different organizations, right, with different, uh, set of contributors.

There's, uh, other integrations like with, with Excel, there's model libraries, there's, uh, models, right? So it's, it's, uh...

Or convenience layers, for example, for, uh, for the FlexSo stack, for, from, uh, for commercial products, right? So it's a, it's a quite wide, uh, variety, right? From like, uh, convenience layers, uh, models, libraries and, and kernels, uh, or kernel implementations, runtimes, whatever you wanna call it, toolkits And I think that's something we haven't seen or could not have seen in the V1 world, was just not possible.

Mm-hmm, mm-hmm.

Uh, but now it's possible, right? And it opens, uh, a wide variety of, of applications, uh, in, in the various fields for, for vendors, for academia, for industry.

Uh, and, and I, I'm ...