Episode 73: Real Time Systems with Bruce Powel Douglass This episode is a conversation with Bruce Powel Douglass on real time systems. We started by discussing what real time software is, and explored the difference between hard and soft real time. We then looked at different scheduling strategies, and the meaning of terms like urgency and importance in the context of scheduling. Next was a discussion of typical architectural styles for real time systems and how architectures are described in this context. This led us to a discussion about the importance of modeling, formalisms and languages as well as the role of automatic code generation from those models. We then looked at how to model QoS aspects and the role of SysML for modeling real time systems. We then had a brief look at which programming languages are used these days for real time systems and the role of static analysis to determine various properties of those programs in advance. The last part of the discussion focused on some best practices for building real time systems, the challenges in distributed real time systems and how real time systems can be tested effectively.
Direct download: seradio-episode73-realtimeSystemsWithBrucePowelDouglass.mp3
Category:Episodes -- posted at: 8:23pm CEST

Episode 72: Erik Meijer on LINQ This episode is a discussion with Erik Meijer on LINQ. This is a relatively technical discussion about the following topics: what is LINQ, what are the common abstractions between the different data structures one can access with LINQ, what is the relationship to established languages for querying, how does the integration into the type system of the host language work, how to specify the mapping between the language level classes and the data, and how optimizations are implemented (lazy loading, prefetching, etc.).
Direct download: seradio-episode72-ericMeijerOnLINQ.mp3
Category:Episodes -- posted at: 8:13pm CEST

In this Episode I talk about the results of the listener survey and reply to some of the suggestions and criticism expressed in survey replies.
Direct download: seradio-episode71-surveyResults.mp3
Category:Episodes -- posted at: 8:09pm CEST

Episode 70: Gerard Meszaros on XUnit Test Patterns In this episode we talk with Gerard Meszaros about problems and challenges doing unit testing in real-world projects. Starting from a short discussion about the importance of automated unit testing we spend most of this episode to talk about every day problems doing unit testing and how those problems can be solved. Based on this book on xunit testing patterns, Gerard talks about his experiences with unit test smells as an analogy to code smells. He describes an impressive set of unit testing patterns to overcome those difficult testing situations and illustrates them with nice examples everybody doing unit testing will feel familiar with.
Direct download: seradio-episode70-gerardMeszarosOnXUnitTestPatterns.mp3
Category:Episodes -- posted at: 7:59pm CEST

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