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Conferences

On Wednesday I had the pleasure of presenting a new talk at the London Microservices User Group, which was entitled “The Business Behind Microservices: Organisational, Architectural and Operational Challenges”.

The key theme of the talk was exploring the often under-appreciated organisational and people impact that introducing (or moving to) a microservice architecture will have on a business. As mentioned in the talk, I’ve lead the implementation of microservices architectures in several organisation as part of my work with OpenCredo and Container Solutions, and so I was keen to share my lessons from the trenches.

You can find a recording of the talk over on the Skillsmatter website, who were our generous hosts for the evening https://skillsmatter.com/skillscasts/6450-the-business-behind-microservices-organisational-architectural-and-operational-challenges 

Daniel Bryant - Business Behind Microservices video recording

 

You can also find the slides on slideshare:

 

The original talk abstract was as follows:

The technology changes required when implementing a microservice-based application are only one part of the equation. The business and organisation will also most likely have to fundamentally change. In an ideal world, this shouldn’t be a problem – what with the rise of agile, lean and DevOps – but this is not always the situation I encounter in my consulting travels. I would like to share some stories of successful (and not so successful) strategies and tactics I have used over the past four years when introducing service-oriented architecture into organisations.

Join me for a whistle-stop tour of the business and people challenges that I have experienced first hand when implementing a greenfield microservice project, and also breaking down a monolith. We’ll look at ‘divided companies’ vs ‘connected companies’, determine the actual impact of conway’s law, briefly touch on the lean startup/enterprise mindset, dive into change management without the management double-speak, and look at the lightweight processes needed to ensure the technical success of a microservices implementation.

As usual, please do let me know if you have any questions!

So, I’m just heading back home after an awesome few days in Budapest, where I was attending the second edition of Craft Conference. I didn’t realise the conference was happening last year, but when my twitter stream was flooded was interesting looking #CraftConf tweets I had a look at the UStream live stream, and then I realised I was missing out! I managed to watch many of last year’s talks via UStream after the conference, and there was some great speakers and great content. As soon as this year’s Craft Conf was announced I bought a ticket, flights and hotel! Having completed the roller-coaster ride that was CraftConf 2015, I’m happy to say that I wasn’t disappointed…

The good…

A quick look down the list of speakers will give you an insight to the amount of tech rockstars that were in the building: Mary Poppendieck, Dan North, Jessica Kerr, Randy Shoup, Trisha Gee, Michael Nygard, Amber Case, Michael Feathers, Sandro Mancuso….need I go on? If you look back at the list, something may strike you as different compared to the majority of other tech conferences – many of the rockstars present are female.

Having first-hand experience of sitting on tech conference program committees myself, I know that it can be very difficult to organise and encourage talk submissions from a diverse group of speakers, of which gender diversity is just one part. I have to tip my hat to the CraftConf organisers for running a tech conference where 25% of the speakers were female, and the fact that they stated in the keynote that this isn’t enough should be applauded (kudos also to the organisers for offering ‘diversity tickets’ to attendees)

The vast majority of talks lived up the billing, and all four keynote sessions were phenomenal (and I don’t use this word lightly!). I left every keynote buzzing, and judging by the amount of chatter and questions from my fellow attendees, so did most other people. Don’t get me wrong, the keynotes weren’t all ‘ra ra – new tech’ or ‘developers, developers, developers’, they were genuinely thought-provoking and some of them boarder-line offensive (in a good ‘call to action’ kinda way). If you go to as many conferences as I do (including some of the bigger names), you’ll again realise how much effort must have gone into organising and planning this content – a big thanks once again to the organisers.

The ‘standard’ sessions running throughout the day were superb (with only a couple of misses detailed below), and the fact that talks were running from 9am to 7pm allowed me to definitely think I was getting value for my money. My general rule for tech conferences these days, is that if I enjoy over 50% of the talks I attend then I’m happy – CraftConf was in the 80-90% range, which is very rare (only the QCon series manages this usually).

During breaks, or when I did skip a talk session, there was always someone to talk to out in the sponsors area or one of the lounges. A tip of the hat again to many of the speakers, who constantly made themselves available and approachable when milling around the conference (and thanks in particular to Adrian Trenaman, Randy Shoup, Sandro Mancuso, Werner Schuster, Trisha Gee, Isra Kaos, Sven Peters, Simon Brown and James Lewis for some great chats).

I’ve listed some of my favourite talks below (in no particular order), and have included links to InfoQ summaries I have written where available (I will try and write more over the coming weeks).

There were also several talks I missed, due to InfoQ commitments or otherwise chatting to interesting people, and I’ll try to watch these back when they are released on UStream:

  • The Ethical Developer – Grady Booch (heard great things about this talk throughout the conference!)
  • DevOps for Everyone – Katherine Daniels (I follow Katherine on twitter, and she talks about some cool stuff)
  • Automating the Modern Datacenter – Mitchel Hashimoto (who doesn’t know what Hashicorp do?)
  • Consensus Systems for the Skeptical Architect – Camille Fournier (I again heard great things about this talk via twitter)

The logistics of the conference was also superb. I found the venue easily enough, registration was a breeze, and moving around the venue was straight-forward (after some initial hunting for the ‘tent’ room, which was actually a tent outside! 🙂 ) Lunches and breaks were well spaced apart and nicely timed, and the food and drink was also excellent (including getting fed for the entire day on the Thursday). The queues for the lunch sessions did get a bit disorganised, but after completing the Paris Marathon and nearly getting shoved to the ground several times when stopping for food and water breaks, I’m starting the think that queueing may be a distinctly-British thing… 😉

The (not so) bad…

I had a few minor grumbles, and to be honest these really were minor. A couple of the talks were too high-level or a bit disorganised, but I only left one early. I’m not going to name and shame people here, but if the conference organisers do ask for feedback then I’m happy be honest. What could help for next year is to indicate the intended audience ‘level’ for a talk, but even then I would expect quite deep content for each session at the conference that I believe CraftConf is trying to be.

I did have a couple of interesting chats with people who mentioned that CraftConf isn’t really a conference about software craftsmanship, and I do agree here – at least in terms of how we define mainstream ‘software craftsmanship’ in London and the USA i.e. focusing on clean code, TDD and outside-in development.

However, I strongly believe that CraftConf is a conference about the software development and delivery craftsmanship, and this is exactly what a generalising specialist like me wants. I care deeply about software development from idea inception through to development, delivery and ultimately validation (thinking about project management, leadership and stakeholder management along the way), and CraftConf hit all of these points nicely for me. The only reason I mention this fact, is that if you are a hardcore London or US-based software craftsman, then don’t come to this conference expecting the type of content you may be used to in typical craftsman events.

I’ve seen a couple of tweets and another blog (including the ever-informative Burning Monk) saying that there was a lack of deep-dive language and functional talks, but I think the conference was all the better for it. This is obviously a subjective opinion, and I enjoy learning about languages and functional as much as the next developer, but I tend to target specialist conferences around these subjects when I want to know more (for example, Scala eXchange or SpringOne 2GX).

For me, the balance of talks at CraftConf was superb, and there could be a danger of diluting the content (and the audience) if the organisers try to make the conference ‘all things to all people’. Just my two pence, but the organisers have run two amazing conferences already, and so I say listen to your heart, not necessarily the advice… (and I appreciate the irony of my advice in this context 🙂 )

And yeah, there was no ugly…

If you’ve read the above content, then you’ve probably figured that I think quite highly of CraftConf, and you would be right. I thoroughly enjoyed my time at the conference, and the combination of speakers, topics and attendees was fantastic. I’ll definitely attempt to head back next year, and this time I’ll keep an eye out for the CFP, as I would love to speak here as well.

The primary meme I took away from this year’s CraftConf is that software development is on the verge of breaking out of the traditional IT shackles, in much the same way computing infrastructure has broken-free and is rapidly evolving with the mainstream adoption of cloud. For anyone familiar with the diffusion of innovation graph, lean principled and business-focused software development is getting dangerously close to the late majority, and this really will shake up the industry (especially the traditional software development shops and developers). Alf Rehn’s and Marty Cagan’s keynotes were great example of this

I’m starting to think that the ‘full-stack’ developer of 2018 will not only have the skills that we expect now, but they will also be business savvy, and know enough statistics and data science to appropriately challenge slow moving executives as to what the expected return on investment will be from the latest (HiPPO) instructions from above… People may say this kind of thing happens now, and it does (and it famously has been in companies like Amazon for quite some time), but I believe this will soon happen in the majority of companies. Don’t forget, if you attended CraftConf or are reading this blog you are already part of a self-selecting audience who aspires to learn more and become better – and you’re in the minority within our industry…

The second meme that I picked up on was is that we are working in a golden age of tooling and process. With the emergence of technologies like cloud and containers, and practices like lean, BDD and TDD, there really is no excuse to be building bad software applications. It may take a bit more thought and design, as mentioned by Mary Poppendieck, Dan North and Jessica Kerr, but it is most definitely possible to build large complex systems that can be validated, tested and deployed with relative ease.

In summary, if you are looking for premium-level conference content at a frankly bargain price (with a fantastic location thrown into the mix), you can’t go wrong with CraftConf. I guarantee you’ll leave with more knowledge than when you arrived, and a whole-lot more questions…

Once again, many thanks to all of the organisers, volunteers and speakers – a great job by all concerned!

On Thursday I once again had the pleasure of presenting at the London Java Community (LJC) meetup. This time I presented a new talk “The Craft Consultant’s Guide to… DevOps”. This builds on a DevOps parody talk I gave at last year’s LJC Unconference, and also combines some of my thoughts from my earlier “Chuck Norris doesn’t do DevOps, but Java developers might benefit” talk.

The goals of this talk was to provide a high-level overview of some of the key themes of DevOps, specifically from a tooling perspective. It’s worth stating at this point that in my opinion DevOps is more about methodology, process and culture more than it is tooling. However, for the intended audience of this presentation the focus on tooling provides a framework on which to build understanding for the non-technical issues. The slides can be found below:

The original abstract for the talk can be found in the next paragraph, and as usual, if you have any comments, thoughts or (constructive) criticism then please do get in touch!

“Come along and learn how the Crafty Consultant makes his money by consulting craftily in DevOps. We’ll see how silos can be broken down by introducing more independent and isolated team, how only idiots automate everything, and why monitoring only provides actionable insight that simply confuses your clients…

…and then we’ll look at the real world implementation of DevOps 🙂 The primary aims of this talk are to introduce the concepts behind the DevOps movement, and we’ll do this by debunking all of the Crafty Consultant’s advice. We’ll cover the drivers of breaking down silos (in business and in tech), the benefits of automation (especially with provisioning and configuring infrastructure), and the power that monitoring provides (particularly when deploying to the cloud, or implementing a microservice architecture).”

Details of the event can be found on meetup.com

I’ve just got back from my first Jfokus conference in Stockholm, Sweden, where I presented the latest version of my “Thinking Fast and Slow with Software Development”. The core concept of the presentation is based on Daniel Kahneman’s bestselling book, “Thinking Fast and Slow“, and I wanted to relate the discussion of decision making heuristics and bias contained in the book to software development.

I’ve included the slide deck below, and I believe the video of the presentation will eventually be available from Parleys

Here is the original abstract:

In the international bestseller ‘Thinking, Fast and Slow’, Daniel Kahneman explains how we as human beings think and reason, and perhaps surprisingly how our thought processes are often fundamentally flawed and biased. This talk explores the ideas presented in the book in the context of professional software development. As software developers we all like to think that we are highly logical, and make only rational choices, but after reading the book I’m not so sure. Here I’ll share my thinking on thinking. Topics that will be discussed include; the ‘Availability Heuristic’, which can lead developers to choose the ‘latest and greatest’ technology without proper evaluation; ‘Optimistic Bias’ which can blind architects from the ‘unknown unknowns’ within a project; and more!

If you have any comments or questions then please do get in touch!

I’m currently at JavaOne and have just finished presenting the latest iteration of my “Cloud Developer’s DHARMA” talk, which was great fun. As promised, here are the slides:

 

 

The abstract for this talk is included here (just for the search engine’s benefit 🙂 )

“Building Java applications for the IaaS cloud is easy, right? “Sure, no problem. Just lift and shift,” all the cloud vendors shout in unison. However, the reality of building and deploying cloud applications can often be different. This session introduces lessons learned from the trenches during several years of designing and implementing cloud-based Java applications, which we have codified into our Cloud Developer’s “DHARMA” rules: Documented (just enough); Highly cohesive/loosely coupled (all the way down); Automated from code commit to cloud; Resource-aware; Monitored thoroughly; and Antifragile. “
 

If you have any questions then please do get in touch!

I was once again privileged to present at the London Java Community (LJC) “Straight from the LJC” series of talks at Skillsmatter last night, and my chosen topic this time was “Professional Software Development: Thinking Fast and Slow”. In a nutshell, I attempted to relate the great content about human decision-making from the book “Thinking Fast and Slow” to the decisions we make in our day-to-day work as software developers. Enjoy!

 

 

Here is the talk abstract:

“In the international bestseller ‘Thinking, Fast and Slow’, Daniel Kahneman explains how we as human beings think and reason, and perhaps surprisingly how our thought processes are often fundamentally flawed and biased. This talk briefly explores the ideas presented in the book in the context of professional software development. As software developers we all like to think that we are highly logical, and make only rational choices, but after reading the book I’m not so sure. Here I’ll share my thinking on thinking.”

Thanks to the LJC, Recworks and OpenCredo in supporting my speaking efforts! As usual, if you have any questions, then please do get in touch!

I was fortunate enough to be invited to sit on this year’s Devoxx UK Program Committee, and this was an awesome experience. Not only did I get to meet (and interact with) some very talented people on the committee, but I also got a peek into how the talk submission review process works. I’m sure this will be invaluable for other conferences I submit proposals to!

I wanted to quickly share my learnings, and also highlight the key things to remember when submitting a talk to a conference CFP:

  • Please don’t just submit a one-liner for an abstract. Unless you are really well-known with an excellent track record then it’s hard to judge the proposal (and even if you are wellknown, then it’s still difficult for us!)
  • Please don’t try and hide a thinly-cloaked sales-pitch as a conference talk. Even the most inexperinced of us sitting on the committe had been to enough conferences to spot this
  • Do include your previous speaking experience (including links to videos and slides), and also any references. This makes the committee’s job of verifying you are a good speaker easier. I do appreciate that not everyone will be an experienced conference presenter, but even a link to a user group talk session you gave can be helpful.
  • Submit to the correct track. If in doubt, then send an email to the organisers asking their opinion
  • Make sure you submit your talk with the correct session type – BOFs are considered and schduled seperately (and sometimes at a differnet meeting than main conference sessions)

On a related topic, Richard Warburton and I presented a ‘How to get your talk accepted at Devoxx UK’ presentation earlier in the year – I’ve included the slides below, as this includes much the same advice as above, but in a nicer format 🙂

 

 

At this point I have to say thanks again to the steering committee of Devoxx UK for inviting me to participate, especially Mark Hazel, Ellie May, Stephan Janssen and James McGivern – you guys rock!

If you have any questions about my learnings or the slides above then please feel free to get in touch!

Ok, so the review of this excellent conference is probably about a month overdue, but time just seems to have flown by! Anyway here it goes…

Life on the Program Committee

I was fortunate enough this year to be invited to sit on the program committee and review submissions (thanks Mark et al!). I’ll create a separate post about this experience later, but I wanted to start this review by mentioning that the number of submissions for Devoxx UK was very high, and the quality was outstanding.

According to my fellow Program Committee members, the job of picking which talks to include in the conference gets more difficult each year! As many committee members mentioned, we could have easily picked talks to fill an entire week of conference, but the difficult thing was that Devoxx UK was only running for 2 days!

The Conference Itself

The conference began in style with a live beatbox session from the UK Champion ‘Reeps One‘. Check out some of his stuff on youtube, but this guy needs to be seen live to get the full experience!

After a great introduction to the conference from the steering committee (Mark Hazell, Ellie May, Stephan Janssen, Dan Hardiker, James McGivern) Dan North opened up the with the keynote “Deliberate advice from an accidental career”. I enjoy most of Dan’s stuff, due largely to his story-telling skills and the fact that I can relate to most of the experiences he talks about, and this presentation was no exception. The key takeaways can be summarised in the photo below, but if you get chance to watch the complete presentation then I strongly recommend you take the opportunity 🙂
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Notes on good sessions

The first official session of the day for me was Andrew Harmel-Law’s “The 5 whys: Counter Intuitive Solutions to (all too common) Problems”, which was a great discussion of key problems in relation to the DevOps movement. The central theme to the talk related to a book on Japanese farming, and how the concepts could be mapped onto continuous delivery and DevOps, and as a fan of Eastern philosophy I enjoyed this metaphor very much 🙂

During the next two sessions I was dropping in and out of talks, and also catching up with other presenters and friends who I hadn’t seen in a while. Talks that looked interesting were Graham Allan’s “How switching to Scala made me less productive, and why that matters less than I thought” and Dick Wall’s “What have Monads ever done for us?”

The final conference session of the day that I attended was John Smart’s “It’s testing Jim, but not as we know it”. This session was a personal highlight of the conference for me, and the discussion of BDD really hit home to the projects I have recently been working on. John also has a MEAP book ‘BDD In Action’ which I can highly recommend.

In the evening Mani Sarkar, Richard Warburton, Martijn Verburg and myself presented an OpenJDK BOF session, which was well received, and generated plenty of great questions. If you want more information (or want to get hacking yourself) then please pop along to Mani’s excellent ‘Getting Started with OpenJDK document’

Roll on to Friday…

Friday began with Simon Brown’s “Software Architecture and the Balance with Agility”, which was another personal conference highlight. As part of my program committee role I had invited Simon to Devoxx UK, as not only am I a big fan of his work, but I also think the topic of architecture is often neglected in developer conferences. Simon didn’t disappoint, and key takeways for me included; developing software in an agile way doesn’t guarantee that the resulting software architecture is agile; a good architecture enables agility; there could be a sweet spot (architecturally speaking) somewhere between a monolithic architecture and SOA (but no-one want to hear this?); sketches can be maps – the key thing is creating a shared vision. Simon has a great website www.codingthearchitecture.com and also a book entitled “Software architecture for Developers”, both of which I can recommend. I definitely am a strong believer that all developers should be aware of architecture (and also that all architects should code!)

Next was an interesting talk ‘Groovy DevOps and the Cloud’, which touched on many of my favourite DevOps topics, but with a Groovy theme. I also couldn’t help noticing that a lot of the tools developed already existed in a non-groovy form, and so I wondered in some of this was vulnerable to the ‘not invented here’ argument, but the presenter did seem aware of this fact, and gave some great recommendations for resources and books at the end of the session

The third session of the day was my turn to present with Steve Poole “Moving to a DevOps mode: Easy, hard or just plain terrifying”. Here is an action-shot of Steve and I on stage…

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It’s safe to say that both Steve and I had a great time presenting, and the feedback and questions after the session were great. You can watch the recording of the session here (subscription required, but free to all who attended Devoxx UK). You can also find the slides in another blog post here

After our talk both Steve and I stayed in the same room to listen to the panel session “What does the Oracle/Google shenanigans mean to the Java Developer”. This talk was not only very funny (almost guaranteed when you create a panel containing Ted Neward with a lawyer…), but also quite pertinent, what with all of the interesting IP/patent issues constantly flying around.

The next session of the day “Modern web architecture” by Ted Neward was great. Ted has his own brand of ‘edu-tainment’, and this session lived-up to his usual billing. I’m not going to spoil his punchline, but I’ll simply say that watching the recording will be well worth your time!

I spent the remainder of the day in the Hackergarten, chatting to many people about OpenJDK and various JSRs (and also answering a few DevOps questions). I also managed to catch up with old friends in the hackergarten, and Anatole Tresch and I also planned our upcoming JSR-354 hackday which we ran at OpenCredo.

The conference was drawn to a close with an ensemble keynote, which was awesome. Martijn did a great job reviewing the conference content, Dick Wall shone an interesting light onto the technological present (including lots of details about wi-fi enabled dog Dotty!), and Arun and company covered (a hopefully very exciting) future, especially relating to the work everyone is doign in Devoxx for kids

The Saturday after-party

A few of us managed to continue the party into Saturday, with John Stevenson from Salesforce offering to run a Devoxx UK themed ‘Hack the Tower’ event. I had great fun here as well, and managed to get a few more people hacking on OpenJDK 🙂

In Conclusion

The conference was awesome, and built upon last years success. Devoxx UK is still one of my favourite conferences in terms of atmosphere, and the ‘by developers, for developers’ mantra really does ring true. Everywhere I went I overheard interesting conversations, saw impromptu hacking, and people taking the time to connect with one another. The quality of speakers was also excellent, and the range of topics nicely balanced (although I may be biased here… 🙂 )

I would also like to say a big thanks to all of the organisers, the volunteers, the speakers and the attendees for making the conference so great. Thanks also to all the friends (both old and new) I managed to catch up with, and I’ll see you all at another conference soon (maybe JavaOne?)

On a final note, Devoxx UK has already been confirmed for 2015, and so please book space in your diaries for a 3 day extravaganza (yes 3 days, not 2) between 17th-20th June!

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I once again had the pleasure of presenting a lightning talk at the London Software Craftsmanship Community #LSCCtalks series. This time I presented a new talk I’m working on – “Crafting DevOps: Applying software craftsmanship to DevOps”.

The presentation (hopefully) does what it says on the tin, in that I talk about the ideas of applying software craftsmanship principles to DevOps . If the DevOps mantra of “Infrastructure as Code” is true (which I think it is), then I believe it makes sense to learn from the craftsmanship community – in particular TDD, BDD and continuous integration.

This is very much a work-in-progress talk, and I hope to develop it more over the coming weeks and months (please do send me your feedback!).

 

Thanks again to Sandro and Samir from the LSCC for inviting me to talk, and as usual, if you have any questions, then please do get in touch. In particular please do let me know if you would like to see more on this topic.

 

I’m very excited to be part of Oracle’s JavaOne event again this year, and I can’t wait to head over to San Francisco at the end of September!

This year I’ll be presenting a solo session on “Cloud Develop’s DHARMA: Redefining done for Cloud applications” (which is an improved version of the talk at gave at Skillsmatter earlier this year), and three other joint Birds-of-a-feather (BOF) sessions on OpenJDK Adoption, the JCP Process, and “How to make your Java User Group and Java More Awesome”

You can find details of all of the talks on my JavaOne conference profile page here.

 

I'm speaking at JavaOne

I’m speaking at JavaOne – Join me!

 

Last year at JavaOne I was fortunate to be invited to talk to theserverside.com’s Cameron McKenzie about a range of topics, and you can find a link to the recordings below [please note that some of the editing in the videos is a bit wonky, as it appears that I am not always answering the question asked – I can assure that you I was answering appropriately during the actual interview itself 🙂 ]

I look forward to catching up with old friends (and making new ones) at this year’s JavaOne, and so if you are there please come and say hello!