Gojko's blog Gojko Adzic's blog. Specification by Example, Impact Mapping, and more... https://gojko.net/ Fri, 24 Feb 2017 14:01:41 +0100 Fri, 24 Feb 2017 14:01:41 +0100 Jekyll v3.1.0 The key lesson from our serverless migration Somewhere in mid-february 2016, the first AWS Lambda chunk of MindMup went live, making us one of the early adopters of a trend that would get buzzworded to serverless. At the start of 2017, we finally turned off all the old services, so MindMup now completely runs ‘serverless’, and it was quite a journey. During that period, the number of active users increased roughly by 50%, but our hosting costs dropped slightly less than 50%. Plus, we replaced what was probably our biggest bottleneck with something that scales without any effort on our side. Given how new the whole service... Thu, 23 Feb 2017 00:00:00 +0100 https://gojko.net/2017/02/23/serverless-migration-lesson.html https://gojko.net/2017/02/23/serverless-migration-lesson.html favourites software-design To slice stories, first make sure they are TOO BIG Software planning stories must be conversation starters. The quality of a story is directly related to how well it drives people towards the right discussions. And far too often, story refinement sessions are only about figuring out how to break down a solution someone already decided on, and delivering it iteratively. But that is just putting lipstick on a pig. Breaking down a solution into pieces requires most of the bits to be implemented before any serious feedback can be given. It also assumes that the solution is the right one for the job. That’s why lots of teams struggle... Thu, 05 Jan 2017 00:00:00 +0100 https://gojko.net/2017/01/05/user-stories-too-big.html https://gojko.net/2017/01/05/user-stories-too-big.html favourites planning agile Impact Mapping With Innovation Games Here’s a video of my keynote at Italian Agile Days, on Impact Mapping with Innovation Games. Thu, 15 Dec 2016 00:00:00 +0100 https://gojko.net/2016/12/15/impact-mapping-iad.html https://gojko.net/2016/12/15/impact-mapping-iad.html news presentations Migrating to a serverless architecture, MindMup 2.0 case study Wed, 02 Nov 2016 00:00:00 +0100 https://gojko.net/2016/11/02/migrating-serverless.html https://gojko.net/2016/11/02/migrating-serverless.html news presentations What's next for agile? -- interview at Agile Prague Here’s the interview Zuzi Sochova did with me at Agile Prague Conference 2016, asking for ideas on what’s next for agile delivery. Enjoy! Sun, 18 Sep 2016 00:00:00 +0200 https://gojko.net/2016/09/18/whats-next-agile/ https://gojko.net/2016/09/18/whats-next-agile/ news Awesome JS microservices in the cloud for (almost) free Here’s a video of my talk at NDC Sydney 2016, on how to get Node.js microservices deployed to AWS Lambda easily, and why that’s important. If you’d like to try this out in practice, come to one of the upcoming Serverless Code Camps, happening in several major cities in Europe this fall. Sun, 11 Sep 2016 00:00:00 +0200 https://gojko.net/2016/09/11/ndc-microservices-cloud.html https://gojko.net/2016/09/11/ndc-microservices-cloud.html news presentations Highlights from Serverless Code Camp #1 Here are some of the highlights from the first ever Serverless Code Camp, and congratulations to the AI-WAR team on winning the tournament. Serverless code camps are community events I’m organising all over Europe this autumn to help people get started with AWS Lambda and other serverless platforms. You can learn how to build and deploy cloud functions and serverless apps by participating in cloud tank warfare! The next camp in in London on 29th September, then Paris on November 28 and and Berlin on December 6. The dates for Stockholm, Vienna and Amsterdam will be published soon. Check out... Mon, 05 Sep 2016 00:00:00 +0200 https://gojko.net/2016/09/25/serverless-camp.html https://gojko.net/2016/09/25/serverless-camp.html news Serverless architectures: game-changer or a recycled fad? If there was a bestseller chart for buzzwords, Serverless would currently be at the top. The interwebs are full of heated debates on how it’s the hottest new thing since the Sun, and rebuttals that it’s just a return to old two-tier architectures. The only thing attracting more controversy than the technology is the name. Twitter is buzzing with sarcastic comments about how serverless involves more servers than ever. There are ideas to stop talking about serverless and start talking about servicefull, then there’s also a half-serious proposal to rename the whole thing to Jeff. If you’ve been sleeping under... Sat, 27 Aug 2016 00:00:00 +0200 https://gojko.net/2016/08/27/serverless.html https://gojko.net/2016/08/27/serverless.html favourites software-design Five ways to reduce the cost of large test suites Lambeth council in south London has a historic reputation for controversial policies. At one point, it banned the police from using the council facilities. In 1985, it refused to set the budget, as a protest against government policies. After an audit, the leader and 30 other councillors had to repay the losses personally, and were banned from holding a political office for five years. For conservative media in 1980s, Lambeth was the prime example of ‘Loony left’, and it looks as if it is on good track to regain that reputation. Lambeth recently closed two libraries to save money, but... Tue, 24 May 2016 00:00:00 +0200 https://gojko.net/favourites/testing/agile/2016/05/24/large-test-suites.html https://gojko.net/favourites/testing/agile/2016/05/24/large-test-suites.html favourites testing agile Impact Mapping Workshop – now opensource and free to use If you’re looking for a good way to introduce impact mapping to your company/clients/at a public training workshop, you can now use the materials from my battle-tested workshop - I’ve just opensourced it. All the materials (facilitation guide, slides, exercise materials and handouts) are now available on GitHub. The materials are completely free to use any way you like, under the Creative Commons 4.0 Attribution license. Get them from: https://github.com/impactmapping My goal with this is to help others spread the word easily. The exercises in this workshop lead the participants through the most important concepts and have quite a few... Mon, 09 May 2016 00:00:00 +0200 https://gojko.net/news/2016/05/09/open-impact-mapping.html https://gojko.net/news/2016/05/09/open-impact-mapping.html news