How to create your presentation in an iterative way
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Speaker: Evelyn Grooten Genre & level: Way of working, Junior Have you ever lost yourself in making a PowerPoint presentation pixel perfect, only to find out that what you just spent two hours on, is cut out of the final presentation because the story was not quite right yet? Even when you work in IT, sometimes you need to get a story across, and convince people. I will walk you through the way I built my presentation using (paper) prototype, getting feedback early and spending time on the must haves before embellishments.
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Imagine this: a motivated team member who is eager to execute the grand ideas you don’t have enough time for. This dream is well within reach. Introducing: the IT intern. You bring the ideas for side projects, college students need a purpose for their internship, have the time and motivation to work on these projects. It’s a perfect match!
Gravitational waves: A new era in astronomy
Gravitational waves are disturbances in spacetime generated by accelerated masses that propagate outward from their source at the speed of light. Measuring gravitational waves provides a new way to observe the universe, as gravitational waves can travel to us from regions of spacetime that light cannot reach. The first direct detection of gravitational waves in 2015 using the LIGO detectors confirmed predictions of Einstein's theory of general relativity and detected the merger of two black holes over 1 billion light years away.
Consumer Driven Contract Testing
Speakers: Nithya & Stephan
Genre & level: Backend, Way of working, Medior
Are you running into interface problems in our increasingly microservices based landscape? Is updating your APIs a hassle? Are your consumers breaking because of your API changes? Let me introduce contract testing as a part of the solution for these problems. Contract testing is a relatively new kid on the testing block. In which we let consumers define contracts for our services so that we can confidently change our APIS when we want to, and if we introduce a breaking change we will know who is affected. This talk will focus on the practical implementation of contract testing. We will write some code examples in both Pact and Spring Cloud Contract so you can make an informed choice about which framework you want to use if you decide to implement contract testing.
I want to go fast! - Exposing performance bottlenecks
1. A webshop was experiencing slow product pages and loggers deadlocking. Observations found high response times and warnings about increased GC usage, memory, and thread counts.
2. An initial hypothesis was formed that new functionality going live, including for products, and Oracle patches caused the product catalog to respond slowly to calls, triggering a circuit breaker that returned nulls and caused logging failures.
3. Experiments found that Oracle queries had slowed down with an update, causing extra queries to execute on the same thread and slowing the system, triggering the circuit breaker, log failures, and locks. Wrapping up, the focus should be on structuring diagnosis, formulating hypotheses, and iterating experiments.
Kubernetes: love at first sight?
Speakers: Joost & Milo (Albert Heijn)
Genre & level: Backend, Junior
Joost and Milo from Albert Heijn join us to talk about how they implemented Kubernetes.
Blockchain: the magical database in the cloud?
Speaker: Andrey Krichevskiy
Genre & level: Backend, Junior
2018 can perhaps be called the year of Bitcoin. But while most people have heard of Bitcoin and blockchain, few fully grasp the technology behind it. Spoiler: blockchain is NOT a magical database in the cloud, but can perhaps be considered one of the slowest distributed databases known to man. But if blockchain is the slowest distributed database known to man, why are people using it? This talk will explore the benefits and true costs of blockchain technology. You will learn why blockchain is not as flawless as we’ve been led to believe, but how the transparency that comes with it has unlocked a whole new set of possibilities. If you’d like to be inspired by possible use cases in our own landscape, then this is the talk for you!
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Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
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How to create your presentation in an iterative way
- 1. Building your presentation in an agile way 1
- 2. Product Owner & Project lead for the Checkout Revamp project 2 Who am I?
- 3. Helpful if you are not experienced as a presenter, or if there are high stakes! How to build your presentation in an iterative way 3 What am I here to tell you?
- 4. Find your STORY and your MESSAGE 4 First iteration: Find a friend who is conceptually strong! Talk through your STORY and define your MESSAGE Use post-its and a wall, to easily switch order
- 5. Examples 5 First iteration: Easy to move around!
- 6. Transfer to your tool of choice and check your flow 6 Second iteration: Create your slides Black & white 1 post-it = 1 slide Present your story to a representative audience Check if your message came across
- 7. Slide deck in iteration 2 7 Second iteration: example Empty and ugly… on purpose!
- 8. Sketch note as feedback 8 Second iteration: example Structure of the talk came across!
- 9. Now you can add illustrations and transitions that support the story 9 Third iteration: Keep it simple and clear, but don’t be scared to impress Find a friendly spelling nazi to improve your work Add (royalty free) images or draw them yourself
- 10. Slide deck in iteration 3 10 Second iteration: example
- 11. Added an animation to reach my goal of impressing the board 11 Third iteration: example
- 12. 12 You are very well prepared now, so enjoy presenting!