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In this week’s Design Podcast, I sit down with Jay Trimble, mission operations manager, ground data system manager, and resource prospector for the Lunar Rover Mission at NASA. We talk about applying Agile, adopting design thinking and user-centered design, and what he and his team rely on to design and build software for mission control.

Jay Trimble on User-Centered Design, Agile, and Design Thinking at NASA

In this week’s Design Podcast, I sit down with Ben Yoskovitz, investor, entrepreneur, and former VP of product at VarageSale and at GoInstant. We talk about using metrics in product development and why anyone building anything new needs to have both hubris and intellectual honesty. Yoskovitz is co-author of Lean Analytics, and is teaching a two-day course on product strategy as part of the upcoming O'Reilly Design Conference.

Ben Yoskovitz on Lean Product Development Using Metrics to Build Successful Products and Companies

Why listen to this podcast:

 - Using a compiler to catch errors at compile time instead of at runtime means much easier refactoring of code.
 - Incrementally replacing small parts of an existing JavaScript application with Elm is a safer strategy than trying to write an entirely new application in Elm
 - Elm packages are semantically versioned and gated by the publishing process, so minor versions cannot remove functionality without bumping the major version.
 - The UI in an Elm application results in messages that transform the immutable state of the application; this allows a debugger to view the state transitions and the messages that triggered them, including record and replay of those messages.
 - Elm has been benchmarked as being faster than Angular and React whilst being smaller code, which is attributed to the immutable state and pure functional elements.

More on this: Quick scan our curated show notes on InfoQ http://bit.ly/2qmS2CT

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InfoQ Podcast

Show Notes

Richard Feldman Discusses Elm and How It Compares to React.js for Front-end Programming

Rossen Stoyanchev talks to Wesley Reisz about blocking and non-blocking architectures, upcoming changes in Spring including Spring WebFlux, the reactive web stack in Spring framework 5, due this summer.  He also discusses the differences between rxJava and Reactor.

Why listen to this podcast:

 - Spring Framework 5 is due to be released June 25 2017
 - Spring Web Flux provides a web programming model designed for asynchronous APIs
 - Back-pressure is important in a server environment; less so within a UI environment
 - It’s possible to use a Spring Web Flux client within a Spring MVC applciation
 - Managing sets of thread pools is more complicated than having a scalable asynchronous system

More on this: Quick scan our curated show notes on InfoQ http://bit.ly/2pPgq0G

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Rossen Stoyanchev on Reactive Programming with Spring 5 and Spring WebFlux

This week, I sit down with Matt LeMay, product coach and consultant, and author of "Product Management in Practice." We talk about the four guiding principles of product management, what he has learned about himself as a product manager, and how to conduct meaningful research.

Matt LeMay on the Four Principles of Product Management

Why listen to this podcast:

- Kotlin is an officially supported language on Google Android platforms  
- Kotlin Native and Kotlin JS will allow code reuse between server, client and mobile devices 
 - Type safety means that references can be checked for nullability Great tooling is a driver in what kind of language features are (and aren’t) adopted 
 - Coroutines provide a way of creating maintainable asynchronous systems

More on this: Quick scan our curated show notes on InfoQ http://bit.ly/2sHyxqQ

You can also subscribe to the InfoQ newsletter to receive weekly updates on the hottest topics from professional software development. bit.ly/24x3IVq

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Kotlin Lead Language Designer Andrey Breslav on Android Support, Language Features and Future Plans

In this episode of the O’Reilly Programming Podcast, I talk with Ken Kousen, an author, instructor, and consultant who is presenting the live online training courses Functional Programming in Java 8 and Getting Started with Spring Boot in September and October. He is also the author of the newly published O’Reilly book Modern Java Recipes: Simple Solutions to Difficult Problems in Java 8 and 9.

Ken Kousen on Java, Spring, and Groovy

Martin Fowler chats about the work he’s done over the last couple of years on the rewrite of the original Refactorings book. He discusses how this thought process has changed and how that’s affected the new edition of the book. In addition to discussing Refactors, Martin and Wes discuss his thoughts on evolutionary architecture, team structures, and how the idea of refactors can be applied in larger architecture contexts.

Why listen to this podcast:

 -    Refactoring is the idea of trying to identify the sequence of small steps that allows you to make a big change. That core idea hasn’t changed.
 - Several new refactorings in the book deal with the idea of transforming data structures into other data structures, Combine Functions into Transform for example.
 - Several of the refactorings were removed or not added to the book in favor of adding them to a web edition of the book.
 - A lot of the early refactorings are like cleaning the dirt off the glass of a window. You just need them to be able to see where the hell you are and then you can start looking at the broader ones.
 - Refactorings can be applied broadly to architecture evolution. Two recent posts How to break a Monolith into Microservices, by Zhamak Dehghani,  and How to extract a data-rich service from a monolith by Praful Todkar on MartinFowler.com deal with this specifically.
 - Evolutionary architecture is a broad principle that architecture is constantly changing. While related to Microservices, it’s not Microservices by another name. You could evolve towards or away from Microservices for example.

More on this: Quick scan our curated show notes on InfoQ https://bit.ly/2QbdHej

You can also subscribe to the InfoQ newsletter to receive weekly updates on the hottest topics from professional software development. bit.ly/24x3IVq

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Martin Fowler Discusses New Edition of Refactoring, Along With Thoughts on Evolutionary Architecture

On today’s podcast, Wes Reisz talks with Jason Maude of Starling Bank. Starling Bank is a relatively new startup in the United Kingdom working in the banking sector. The two discuss the architecture, technology choices, and design processes used at Starling. In addition, Maude goes into some of the realities of building in the cloud, working with regulators, and proven robustness with practices like chaos testing.

Why listen to this podcast:

 - Starling Bank was created because the government lowered the barrier to entry for banking startups in reaction to previous industry bailouts.
 - The system is composed of around 19 applications hosted on AWS and running Java and backed by a PostgreSQL database.
 - These applications are not monolithic but are focused around common functionality (such as a Card or Payment Service).
 - Java was chosen primarily because of its maturity and long term viability/reliability in the market.
 - The heart of Starling is every action the system takes happens at least once and at most once. To help with these rules, everything in their system uses as a correlation id (UUID) and are used to make sure these two rules are met.

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Jason Maude on Building a Modern Cloud-Based Banking Startup in Java

On this week’s podcast, Wes Reisz talks with Brian Goetz. Brian is the Java Language Architect at Oracle. The two start with a discussion on what the six-month cadence has meant to the teams developing Java. Then move to a review of the features in Java 9 through 12. Finally, the two discuss the longer-term side projects (such as Amber, Loom, and Valhalla) and their role in the larger release process for the JDK.

* The JVM’s sixth-month cadence changed the way the JDK is delivered and planned. While it definitely provides more rapid delivery at expected intervals, the release train approach turned out to also improve flexibility and efficiency.
* Oracle JDK and OpenJDK are almost identical. Most of the JDK distributions are forks from OpenJDK with different bug fixes and backports applied. So the difference between the distributions now is largely which bug fixes are picked up.
* Local Variable inference (which was released as part of Java 10) illustrated the tension on making changes to the language. Many people wanted the change, but many others felt it would enable people to write bad code. Oracle had to balance the two views when making the change.
* The number of Java versions allow finer grain decision making on what is appropriate for an application. With the adoption of containers, applications are bundled with an exact JDK version rather than having to use one from a systems level. The different versions give developers more options.
* Incubating features are new libraries added to the JDK. They were offered starting with Java 9 as a way for people to test and offer feedback more rapidly. With Java 12, preview features will be released. Preview features are similar but are core platform and language features.
* Shenandoah and ZGC are both low latency garbage collectors. They originally came from different sources. While both garbage collectors are similar, each has different performance characteristics under different workloads. The two garbage collectors represent options available to JVM developers.
* Most non-trivial JDK features take more than six months to develop. Longer term side projects like Amber, Loom, Valhalla are where these features are developed prior to being released with a version of the JDK. The projects range from language enhancements to concurrency work.

Java Language Architect Brian Goetz on Java and the JDK

In this podcast Charles Humble and Wes Reisz talk about autonomous vehicles, GDPR, quantum computing, microservices, AR/VR and more.

* Waymo vehicles are now allowed to be on the road in California running fully autonomous; they seem to be a long way ahead in terms of the number of autonomous miles they’ve driven, but there are something like 60 other companies in California approved to test autonomous vehicles.

* It seems reasonable to assume that considerably more regulation around privacy will appear over the next few years, as governments and regulators grapple with not only social media but also who owns the data from technology like AR glasses or self-driving cars.

* We’ve seen a huge amount of interest in the ethical implications of technology this year, with Uber getting into some regulatory trouble, and Facebook being co-opted by foreign governments for nefarious purposes. As software becomes more and more pervasive in people's lives the ethical impact of what we all do becomes more and more profound.

* Researchers from IBM, the University of Waterloo, Canada, and the Technical University of Munich, Germany, have proved theoretically that quantum computers can solve certain problems faster than classical computers.

* We’re also seeing a lot of interest around human computer interaction - AR, VR, voice, neural interfaces. We had a presentation at QCon San Francisco from CTRL-labs, who are working on neural interfaces - in this case interpreting nerve signals - and they have working prototypes. Much like touch this could open up computing to another whole group of people.

Show notes

Charles Humble and Wes Reisz Take a Look Back at 2018 and Speculate on What 2019 Might Have in Store

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