Software Engineering Radio - the podcast for professional software developers

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Episode 96: Interview Krzysztof Czarnecki May 08, 2008

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This episode is the long-awaited (and much requested) interview with Krzysztof Czarnecki, the author, together with Ulrich Eisenecker, of the book Generative Programming. In the interview we discussed the state of generative programming today and related it to model-driven development and DSLs. We then talked a little bit about product lines in general. We then discussed his current field of research, which currently focusses on framework-specific modeling languages and non-trivial roundtrip engineering.

Episode 95: The New Guardian.co.uk website with Matt Wall and Erik DoernenBurg May 01, 2008

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In this episode we talk to Matthew Wall (Guardian News and Media) and Erik Doernenburg (Thoughtworks) about their work on the new guardian.co.uk website. We discuss the challenge of scalability and interactivity, their use of Domain Driven Design, some of the technical building blocks as well as the approaches they use for performance measuring and scalability tuning.

Episode 94: Open Source Business Models with Dirk Riehle Apr 23, 2008

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In this episode we're talking to Dirk Riehle about open source business models. We started looking at the way OS projects work and defined different kinds of open source projects. In the main part of the discussion we looked at various ways of how to make money with open source: consulting, support contracts, commercial variant of an open source project, etc. We then looked at the chances and risks of each of these approaches. The next part focused on different open source licenses and how they are suitable for open source business. We concluded the episode by discussing a couple of specific questions and loose ends. After the show, Dirk informed me about the following three corrections: Black Duck Software's main product is called protexIP not IP Central, there are presently 70 licenses approved by the Open Source Initiative, and EnterpriseDB has so far acquired $37M in venture capital

Episode 93: Lessons Learned From Architecture Reviews with Rebecca Wirfs-Brock Apr 15, 2008

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In this episode, Markus talks to Rebecca Wirfs-Brock on what she has learned from architecture reviews. This is a very complement to the earlier episode on architecture evaluation.

SE Radio 92: Introduction to Game Development with Oliver Jucknath Apr 07, 2008

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In this Episode, Arno talks with Oliver Jucknath about the art of writing computer games. A lot of myth is attached to this area of computing, and while a game technically is just another program, it is written in a different context than typical business applications. This is true at the code level, where aggressive optimization is a focus throughout development. It also applies at the team level, where collaboration between specialists is pronounced. And the business context is different as well, which in turn influences the development effort as a whole.

Episode 91: Kevlin Henney on C++ Mar 30, 2008

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In this episode, we talk with Kevlin Henney about the C++ programming language. We look at the history and the culture of the language, and how it went through several phases in its evolution. We also take a look at some of the special language features of C++ and their overall influence.

Episode 90: Product Line Engineering, Pt. 3, with Charles Krueger Mar 22, 2008

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In this episode Charles Krueger, a well-known member of the product line engineering community, talks about his long term experiences in the field. Charles is also the founder and CEO of a company that provides tooling for variability management and product derivation. Besides some clarifications on terms like product line architecture and reference architecture, you also learn what kind of preconditions need to exist before product line engineering can be applied successfully.

Episode 89: Joe Armstrong on Erlang Mar 12, 2008

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In this Episode we're talking about Erlang with its creator Joe Armstrong. We started by looking at the history of the Erlang language and why it is so relevant today. We then looked at Joe's approach to Concurrency Oriented Programming and its main ingredients: share nothing, lightweight concurrency and pure message passing. We also compared this to the classic shared memory approach to concurrency. We then looked at other interesting aspects of Erlang, such as its functional nature (and why this is important to concurrency) and pattern matching. Next we discussed how to implement distribution and fault tolerance, and we took a look at OTP, the "application server" for Erlang. We concluded the conversation with a littel discussion about how Erlang was designed, it's current community as well as its future.

Episode 88: The Singularity Research OS with Galen Hunt Mar 02, 2008

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In this episode we talk to Galen Hunt about the Singularity research OS. Galen is the head of Microsoft's OS Research Group and, together with a team of about 30 other researches, has built Singularity. We started our discussion by covering the basics of Singularity: why it was designed, what the goals of the project are as well as some of the architectural foundations of Singularity: software isolated processes, contract-based channels and manifest-based programs. In this context we also looked at the role of the Spec# and Sing# programming languages and the role of static analysis tools to statically verify important properties of a singularity application. We then looked a little bit more closely at the role of the kernel and how it is different from kernels in traditional OSes. In a second part of the discussion we looked at some of the experiments the group did based on the OS. These include compile-time reflection, using hardware protection domains, heterogenerous multiprocessing as well as the typed assembly language We closed the conversation with a look at some of the performance characteristics of Singularity, compatibility with traditional operating systems and a brief look at how the findings from Singularity influence product development at Microsoft.

Episode 87: Software Components Feb 21, 2008

Show notes

In this episode, Michael and Markus talk about software components. We first looked at a couple of attempts at defining what a component is. We then provided our own definition that will be used in the rest of the episode. We then looked at the promises of component-based development: why are components useful? We then discussed some of the typical metadata components should specify to make them useful. We discussed to some extent typical variations in component models. The next topic was the separation of concerns between the component functionality and functionality provided by the component's execution environment (aka. container). We then compared components with other (more or less) related technologies such as OO and SOA. We concluded the episode with the notion of architecture as language, where you use a formal DSL to describe a system's architecture. Components are the basic building block for this approach.

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