Concurrent languages are Functional by Francesco Cesarini
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The document discusses concurrency in functional programming languages. It explains that there are two approaches to concurrency: mutable state and immutable state. Immutable state avoids issues with corrupt state that can occur with mutable state. Functional languages with immutable state and message passing, like Erlang, allow for easy distribution across computing resources from embedded devices to high-performance supercomputers. The document emphasizes how immutability, concurrency, and distribution enable scalability, reliability, and parallelism.
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Erlang from behing the trenches by Francesco Cesarini
Erlang is a programming language designed for the Internet Age, although it pre-dates the Web. It is a language designed for multi-core computers, although it pre-dates them too. It is a “beacon language”, to quote Haskell guru Simon Peyton-Jones, in that it more clearly than any other language demonstrates the benefits of concurrency-oriented programming. In this talk, I will introduce Erlang from behind the trenches. By introducing the major language constructs, describe their benefits and discuss the problems Erlang is ideal to solve. I will be doing so from a personal prospective, with anecdotes from my time as an intern at the Ericsson computer science lab at a time when the language was being heavily influenced and later when working on the OTP R1 release.
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Tickets
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Conference registration is now open and Smart Price offers are going away soon. Register now for best deals!! https://confengine.com/agile-india-2018/register
Check out the exciting offers for bulk registrations - https://2018.agileindia.org/agile-india-2018-bulk-booking-offers/.
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Recommended
Erlang from behing the trenches by Francesco Cesarini
Erlang is a programming language designed for the Internet Age, although it pre-dates the Web. It is a language designed for multi-core computers, although it pre-dates them too. It is a “beacon language”, to quote Haskell guru Simon Peyton-Jones, in that it more clearly than any other language demonstrates the benefits of concurrency-oriented programming. In this talk, I will introduce Erlang from behind the trenches. By introducing the major language constructs, describe their benefits and discuss the problems Erlang is ideal to solve. I will be doing so from a personal prospective, with anecdotes from my time as an intern at the Ericsson computer science lab at a time when the language was being heavily influenced and later when working on the OTP R1 release.
More details: https://confengine.com/functional-conf-2017/proposal/4787/an-introduction-to-erlang-from-behind-the-trenches
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In this workshop, Naresh Jain explains what are the core techniques one should master to effectively practice evolutionary design while solving real-world problems. To summarize:
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2. Divide and Conquer to prioritize and focus on the most important part
3. Add constraints to future simplify the problem
4. Come up with a simple design to incrementally build your solution
5. Refactor: Pause, look for a much simpler alternative
6. Be ready to throw away your solution & start again
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Agenda
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Professor David Denyer of Cranfield University has recently published a very interesting research report on Organizational Resilience. He has identified the following four quadrants across to help us think about organizational resilience:
* preventative control (defensive consistency)
* mindful action (defensive flexibility)
* performance optimization (progressive consistency)
* adaptive innovation (progressive flexibility)
In this talk, I'll share my personal experience of using this thinking to help an organization to scale their product to Millions of users. I've dive deep into how we structured our organization for Structural Agility and how we set-up a very lightweight governance model using OKRs to drive the necessary flexible and progressive thinking.
More details: https://confengine.com/agile-india-2019/proposal/8216/organisational-resilience-design-your-organisation-to-flourish-not-merely-survive
Conference Link: https://2019.agileindia.org
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By doing this, we saw our developers starting paying more attention to clean code practices and hence the overall quality of the incoming code improved, while we worked on putting the right engineering practices and testing strategy in place.
More details: https://confengine.com/last-conference-canberra-2018/proposal/7294/improving-the-quality-of-incoming-code
Conference Link: https://2019.agileindia.org
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* Jeff Patton - Author of User Story Mapping and the person responsible for bringing user-centered design thinking to Agile world
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* Nils Kappeyne - VP & CIO for Integrated Gas & New Energies at Shell
* And 70 more thought leaders from 16 countries - https://2018.agileindia.org/speakers/
The program spreads across 8 days (March 4-11th 2018, Bengaluru) with two pre-conference plus two post-conference workshop days and four days of conferences in between:
* March 4-5th: Pre-Conference Workshops from our international experts
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* March 7th: Design Innovation Day - Hosted by Cooper
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* March 9th: DevOps and Continuous Delivery Day - Hosted by Red Hat
* March 10-11th: Post-Conference Workshops from our international experts
Schedule
========
Check out conference schedule for the lineup of workshops and speakers. https://confengine.com/agile-india-2018/schedule
Tickets
=======
Conference registration is now open and Smart Price offers are going away soon. Register now for best deals!! https://confengine.com/agile-india-2018/register
Check out the exciting offers for bulk registrations - https://2018.agileindia.org/agile-india-2018-bulk-booking-offers/.
Sponsors
========
We thank Agile Alliance, Cooper, RedHat, Scrum.org, Shell, AddTeq/Atlassian, Scaled Agile, ICAgile and Scrum Alliance for sponsoring the conference. If your organization wants to support this non-profit, volunteer-run conference, please check out sponsorship options https://confengine.com/agile-india-2018/sponsor#guide
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Agile India 2018 Conference
Agile India 2018 Conference is Asia's Largest and Premier Conference on Business Agility, Design Innovation, Digital Transformation, Continuous Delivery, DevOps, Agile, Scrum, eXtreme Programming, Lean, Kanban, Enterprise Agile, Lean Startup, Research, and Patterns. Get to meet pioneers and expert practitioners from around the world on Agile Mindset, Scaling Agility, Lean Product Discovery, Continuous Delivery and DevOps. 4 - 11 March 2018 at Taj West End, Bangalore. More details: https://2018.agileindia.org
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More details: https://confengine.com/functional-conf-2017/proposal/5138/pilgrims-progress-to-the-promised-land
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Agile India 2016 Conference
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For example, your object evolve to have single functions and gradually you can make the classes immutable. This leads to pure function without side-effects. At that point, you can turn them into closures (a poor man's object.) Eventually this leads to higher-order functions, which can be used as first class-citizens. Further more, you can express your domain behavior in terms of generic functions like map and reduce, which can be chained or composed to really simplify your logic and make your design more communicative. At this stage, you can really feel the difference between a declarative vs. imperative style of programming.
If time permits, we can also look at how to apply concepts like partial function application, currying, lazy evaluation and infinite data-structures to tackle complexity and design for scalability.
If this sounds interesting, join us for a code-along session, where we'll take a problem and incrementally evolve the design from OO to more of a functional style.
Key Take-ways:
1. Introduction to Functional thinking
2. Demystify some of the core Functional Programming concepts and jargons
3. Understand how to evolve to a Functional style and its advantages
Agenda:
* Object-Oriented Design Principles (SOLID, DRY)
* Functional Concepts
** Single Abstract Method (SAM)
** Pure Functions
** Immutability
** High-Order Functions
** Lambda Expressions
** Lazy evaluation
** Functional Composition
** Declarative vs. Imperative programming style
* Quick Demo - Java 8 Functional Features
Techniques for Effectively Slicing User Stories by Naresh Jain
In order to achieve my goals, as a buyer of your product, I want awesome feature. AT: make sure your users stories don't get in the way.
Users Stories, the tool teams use to break big ideas into small demonstrable deliverable, are easy to describe and challenging to write effectively. In this hands-on workshop you'll learn how to write great user stories and acceptance criteria, that everyone on the team understands. We'll learn various techniques to slice your stories using the tracer-bullet approach. We will discuss what elements should be included in the stories, what criteria you should keep in mind while slicing stories; why the size of your user story is important and how to make them smaller and efficient.
Agenda:
What do you do to Large Stories? Spike, Split, Stub & Timebox (SSST) technique.
Core Slicing Techniques:
1. System Slice
1.a. Static vs. Dynamic
1.b. Real-time vs. Batch Processing
1.c. Build vs. Buy
1.d. Automated vs. Manual Steps
1.e. Defer certain roles
2. Behavioural Slice
2.a. Adjusting Sophistication - MVF (Minimum Viable Feature) or Walking Skeleton
2.a.1. Acceptance Criteria
2.b. By-pass certain steps in the workflow
2.c. Focus on Happy Path First (edge cases later)
2.d. No options - 1 option - Many options
3. Incrementally improve ‘Ilities' (Usability, Scalability, Reliability, etc.)
3.a. Simpler UI (even consider using a standard UI)
3.b. Minmal Data
3.c. Improve Performance Iteratively
Cyaniclab : Software Development Agency Portfolio.pdf
CyanicLab, an offshore custom software development company based in Sweden,India, Finland, is your go-to partner for startup development and innovative web design solutions. Our expert team specializes in crafting cutting-edge software tailored to meet the unique needs of startups and established enterprises alike. From conceptualization to execution, we offer comprehensive services including web and mobile app development, UI/UX design, and ongoing software maintenance. Ready to elevate your business? Contact CyanicLab today and let us propel your vision to success with our top-notch IT solutions.
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Agile India 2018 Conference is Asia's Largest and Premier Conference on Business Agility, Design Innovation, Digital Transformation, Continuous Delivery, DevOps, Agile, Scrum, eXtreme Programming, Lean, Kanban, Enterprise Agile, Lean Startup, Research, and Patterns. Get to meet pioneers and expert practitioners from around the world on Agile Mindset, Scaling Agility, Lean Product Discovery, Continuous Delivery and DevOps. 4 - 11 March 2018 at Taj West End, Bangalore. More details: https://2018.agileindia.org
Agile India 2018 Conference
Agile India 2018 Conference is Asia's Largest and Premier Conference on Business Agility, Design Innovation, Digital Transformation, Continuous Delivery, DevOps, Agile, Scrum, eXtreme Programming, Lean, Kanban, Enterprise Agile, Lean Startup, Research, and Patterns. Get to meet pioneers and expert practitioners from around the world on Agile Mindset, Scaling Agility, Lean Product Discovery, Continuous Delivery and DevOps. 4 - 11 March 2018 at Taj West End, Bangalore. More details: https://2018.agileindia.org
Pilgrim's Progress to the Promised Land by Robert Virding
When migrating to Elixir/OTP from other languages and systems a number of issues will always crop up. The trick is to make sure that these issues don't become problems. This talk will look at some of the more common ones and what to do about them to make sure they don't become problems.
More details: https://confengine.com/functional-conf-2017/proposal/5138/pilgrims-progress-to-the-promised-land
Conference: https://functionalconf.com
Anatomy of an eCommerce Search Engine by Mayur Datar
In this talk, the chief Data scientist of Flipkart will uncover the various challenges in running an e-commerce search platform like scale, recency, update rates, business shaping etc. He will also explain the overall system architecture of the search platform and get into the details of some of the sub-systems, including the query understanding and rewriting sub-system.
Setting up Continuous Delivery Culture for a Large Scale Mobile App
Hike is a mobile-first, messaging platform that is used by 100 million users to exchange 40 billion messages/month. Hike app is available on Android, iOS and Windows phone. On the back-end, we’ve 100+ macro-services in Java, Python, Ruby, Go and Elixir. While setting up a Continuous Delivery pipeline, we ran into a series of technical challenges. However it was more important to address the organisational/behavioural challenges to ensure a sustainable culture shift in the company.
In this talk, I cover how we went about:
* Setup a trunk-based development model
* Decentralised our build & test environments using Docker and Jenkins
* Segregated and containerised our macro-services
* Refactored the mobile apps to be more container friendly
* Setup a mobile device farm using STF
* Improved the quality of code-reviews using PRBuilder & PRRiskAdvisor
* Created different kinds of automated tests to align with our CI Pipeline and get rapid feedback
* Finally how we used C3 to visualise the health of our code-base
Towards FutureOps: Stable, Repeatable environments from Dev to Prod
Modern human history is a story of humans inventing new tools to do more with less. "Doing more" has allowed most of us to no longer worry about producing our own food, collecting water, planning long journeys, etc. Instead, we’re able to specialize, buy what we need for less, and to some extent explore ourselves a lot more.
We're far from done, and of course humanity is far from perfect. In this talk, Mitchell Hashimoto discusses the role that automations and computers play in building a brighter future.
More details: https://confengine.com/agile-india-2017/proposal/3618/towards-futureops-stable-repeatable-environments-from-dev-to-prod
Value Driven Development by Dave Thomas
Agile, OOP... are like good hygiene in the kitchen, it results in meals with consistent quality and predictable prep and service times. It doesn't result in great meals nor substantially impact the ROI! Lean Thinking clearly shows that the only way to make a significant impact is to improve the value chain by improving flow. If everyone is following best practices no one has competitive advantage. Major improvements in the value chain depend on continued disruptive innovations. Innovations leverage people and their ideas. We use case studies to illustrate the different business and technical innovations and their impact. We conclude with a discussion of how to build and leverage an innovation culture versus a sprint death march when dealing with high value time to market projects.
More details: https://confengine.com/agile-india-2017/proposal/3608/value-driven-development-maximum-impact-maximum-speed
No Silver Bullets in Functional Programming by Brian McKenna
We are constantly presented with trade-offs when writing software. What are the trade-offs when applying functional programming? What costs arise? When is it not worth doing? When should pragmatism kick in and when should we start using side-effects?
This talk will give you some tools to be able to answer the above questions for both functional programming and types. The tools have been refined over many professional years of both doing and not doing purely functional programming.
More details: https://confengine.com/functional-conf-2016/proposal/3137/no-silver-bullets-in-functional-programming
Functional Programming Conference 2016
For over 35 years, functional programming has been a hot research topic. However in the last 5 years, driven by the need to build massively concurrent systems and to handle big-data, we have experienced a rapid adoption of functional programming concepts by diverse companies, ranging from tech start-ups to financial institutes.
These days, functional programming is at the heart of every, new generation programming technologies. Companies are employing functional programming to enable more effective, robust, and flexible software development. This has given birth to a very vibrant community of functional programmers, who are constantly exploring ways to bring functional programming concepts to the world of enterprise software development.
Functional Conf is designed to bring the growing community of functional programmers together under one roof. At Functional Conf:
participants can understand the fundamentals concepts behind functional programming,
they can learn how others are using functional programming to solve real world problems,
practitioners can meet peers and exchange their experience,
experts can share their expertise on practical usage and gotchas in functional programming concepts.
More details: http://functionalconf.com/ or https://confengine.com/functional-conf-2016
Agile India 2017 Conference
Agile India 2017 Conference is Asia's Largest and Premier Conference on Agile, Scrum, eXtreme Programming, Lean, Kanban, DevOps, Enterprise Agile, Lean Startup, Continuous Delivery, Research and Patterns. Get to meet pioneers and expert practitioners from around the world on Agile Mindset, Scaling Agility, Lean Product Discovery, Continuous Delivery and DevOps. 6 - 12 March 2017 at ITC Gardenia, Bangalore. More details: http://2017.agileindia.org
The Eclipse Way
This talk will explain the secret of the success of the Eclipse Platform team. The Eclipse Way is an agile software development process that we started right at the beginning when we started to develop Eclipse back in 1999. It was and is used by the Eclipse Platform team and got continuously improved over time. During the session you will hear about all our practices, like milestones, early and iterative planning, continuous integration and the endgame. I will also reveal some of the history behind the Eclipse top-level project.
More details: https://confengine.com/eclipse-summit-2016/proposal/2386/the-eclipse-way
Unleashing the Power of Automated Refactoring with JDT
Refactoring is a series of small steps, each of which changes the program’s internal structure without changing its external behaviour. Refactoring, as a tool, to automate behaviour-preserving transformations to source code are not only very popular in agile development environments, but have been widely established as a cornerstone of the daily software development process, regardless of the methodology being used. Most major development environments such as Eclipse offer a set of powerful refactoring to substantially increase development productivity.
In this live demo, I’ll show
* the real value of refactoring,
* how we practice it safely,
* when and why we refactor,
* the power of refactoring tools and
* when we avoid refactoring.
I’ll be using two real-world examples of refactoring and sharing what I’ve learned about this important practice of the last 15 years.
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Do you want to harness the deeper power of games – the power to drive long-term engagement? Are you ready to look beyond the silver bullets & Skinner boxes – and learn to think like a game designer? In this talk, you’ll learn the foundations of Game Thinking - brought to life with front-line stories from eBay, Ultima Online, The Sims, Rock Band, Covet Fashion, Happify, Lumosity and Slack. You’ll come away with a smarter approach to innovative product design - and practical, actionable design tips you can use right away to turbo-charge your path towards product/market fit.
More details: https://confengine.com/agile-india-2016/proposal/1961/getting2alpha-turbo-charge-your-product-with-game-thinking
MVP Design Hacks
A successful startup/product company needs to master the art of validating early product ideas quickly and effectively. Whether you are building a product, service or a new feature, the two most important questions to find out early are:
* are we solving the right problem?
* if yes, how do we pitch the idea to the target customer to generate a favourable action?
During this session, we'll focus on various safe-fail experimentation techniques used by Lean Startups for quickly identifying and validating the customer's value hypothesis, without having to build the real product. You will leave this session equipped with various MVP design techniques, that will allow you to rapidly discover a viable product/service that delights your customers, without spending a lot of time and effort.
Traditionally, entrepreneurs believed that the only way to test their product/service hypothesis was to build the best-in-class product/service in that category, launch it, and then pray. Most often, products/services fail, not because they cannot be built or delivered. But because, they lack the market-fitment and customer appeal.
To avoid these risks, these days startups are focusing on building a "Minimum Viable Product" (MVP), a product that includes just enough core features to allow useful feedback from early adopters. This reduces the time to market and allows the company to build subsequent customer-driven versions of the product. Hence mitigating the likelihood of wasting time on features that nobody wants. MVPs are typically deployed to a subset of customers, such as early adopters that are more forgiving, more likely to give valuable feedback.
However the problem with MVPs is that companies still spend too much time building stuff and very little time learning. Don't forget the purpose of MVP is validated learning NOT building. This session will give you ideas on how to quickly formulate and test your value and growth hypothesis in a scientific framework using extremely cheap MVP techniques collectively referred to as MVP Design Hacks.
More details: http://agilefaqs.com/services/training/crafting-out-mvps and http://agilefaqs.com/services/training/product-discovery
Functional Conf 2015
For over 35 years, functional programming has been a hot research topic. However in the last 5 years, driven by the need to build massively concurrent systems and to handle big-data, we've experienced a rapid adoption of functional programming concepts by diverse companies, ranging from tech start-ups to financial institutes.
These days, functional programming is at the heart of every, new generation programming technologies. Companies are employing functional programming to enable more effective, robust, and flexible software development. This has given birth to a very vibrant community of functional programmers, who are constantly exploring ways to bring functional programming concepts to the world of enterprise software development.
Functional Conf is designed to bring the growing community of functional programmers together under one roof. At Functional Conf:
* participants can understand the fundamentals concepts behind functional programming
* they can learn how others are using functional programming to solve real world problems
* practitioners can meet peers and exchange their experience
experts can share their expertise on practical usage and gotchas in functional programming concepts
More details: http://functionalconf.com/
Agile India 2016 Conference
Agile India 2016 Conference is Asia's Largest and Premier Conference on Agile, Scrum, eXtreme Programming, Lean, Kanban, DevOps, Enterprise Agile, Lean Startup, Continuous Delivery, Research and Patterns. Get to meet pioneers and expert practitioners from around the world on Agile Adoption, Scaling Agile, Offshore Agile and Distributed Agile. 14 - 21 March 2016 at Chancery Pavilion, Bangalore. More details: http://2016.agileindia.org
Test Driving a jQuery Plugin
Over the past decade, eXtreme Programming practices like Test-Driven Development (TDD), Behavior Driven Developer (BDD), Refactoring and Continuous Integration have fundamentally changed software development processes and inherently how engineers work. Practitioners claim that it has helped them significantly improve their development speed, design quality and responsiveness to changing requirements. Software professionals across the board, from Internet startups to medical device companies to space research organizations, today have embraced these practices. But can these practices be applied to front-end development? Especially jQuery plugin development?
This demo will show how we can test drive a jQuery plugin with the help of various patterns, strategies, tools and techniques. Participants will understand how they can apply this approach for testing any jQuery code.
Making Sense Through Action by Dave Snowden
In order to successful scale any method or practice, it has to have some basis in theory. This presentation will use insights from complex adaptive systems theory and the cognitive sciences to lay a foundation for that theory. Seeing software development as a problem of knowledge management, the theory will elaborate a understanding of applications as the emergent property of a co-evolutionary interactions between technology capability and unarticulated user requirements.
Having established a basic theory a range of methods and tools will be elaborated. These include:
- Narrative based approaches to requirements capture (not to be confused with Story telling or story boarding) which gather thousands of fragmented self-signified anecdotes relating to real and imagined needs within a user community and allow interpretation and integration into project planning.
- Approaches to project planning and implementation that focus on the creation of self-organising teams of specialists and users to create novel approaches, supported by evidence to previously intractable problems. This is particularly relevant to the 5-10% of any major project which creates 95-90% of the grief.
- The integration of tools such as blogs, wiki's etc into the development environment. Too often corporate environments over-constrain those tools into over rigid structures which destroy their utility.
Oh Oh To Functional
Given a problem, most of us have a decent idea of how to model the problem in an Object-Oriented world. We can use principles like SOLID, GRASP, "Keep It DRY, Shy, and Tell the Other Guy" and so on to guide our design.
In my experience, if you apply these principles recursively, (esp. on certain problems) you will notice, that you start drifting towards functional style of programming.
For example, your object evolve to have single functions and gradually you can make the classes immutable. This leads to pure function without side-effects. At that point, you can turn them into closures (a poor man's object.) Eventually this leads to higher-order functions, which can be used as first class-citizens. Further more, you can express your domain behavior in terms of generic functions like map and reduce, which can be chained or composed to really simplify your logic and make your design more communicative. At this stage, you can really feel the difference between a declarative vs. imperative style of programming.
If time permits, we can also look at how to apply concepts like partial function application, currying, lazy evaluation and infinite data-structures to tackle complexity and design for scalability.
If this sounds interesting, join us for a code-along session, where we'll take a problem and incrementally evolve the design from OO to more of a functional style.
Key Take-ways:
1. Introduction to Functional thinking
2. Demystify some of the core Functional Programming concepts and jargons
3. Understand how to evolve to a Functional style and its advantages
Agenda:
* Object-Oriented Design Principles (SOLID, DRY)
* Functional Concepts
** Single Abstract Method (SAM)
** Pure Functions
** Immutability
** High-Order Functions
** Lambda Expressions
** Lazy evaluation
** Functional Composition
** Declarative vs. Imperative programming style
* Quick Demo - Java 8 Functional Features
Techniques for Effectively Slicing User Stories by Naresh Jain
In order to achieve my goals, as a buyer of your product, I want awesome feature. AT: make sure your users stories don't get in the way.
Users Stories, the tool teams use to break big ideas into small demonstrable deliverable, are easy to describe and challenging to write effectively. In this hands-on workshop you'll learn how to write great user stories and acceptance criteria, that everyone on the team understands. We'll learn various techniques to slice your stories using the tracer-bullet approach. We will discuss what elements should be included in the stories, what criteria you should keep in mind while slicing stories; why the size of your user story is important and how to make them smaller and efficient.
Agenda:
What do you do to Large Stories? Spike, Split, Stub & Timebox (SSST) technique.
Core Slicing Techniques:
1. System Slice
1.a. Static vs. Dynamic
1.b. Real-time vs. Batch Processing
1.c. Build vs. Buy
1.d. Automated vs. Manual Steps
1.e. Defer certain roles
2. Behavioural Slice
2.a. Adjusting Sophistication - MVF (Minimum Viable Feature) or Walking Skeleton
2.a.1. Acceptance Criteria
2.b. By-pass certain steps in the workflow
2.c. Focus on Happy Path First (edge cases later)
2.d. No options - 1 option - Many options
3. Incrementally improve ‘Ilities' (Usability, Scalability, Reliability, etc.)
3.a. Simpler UI (even consider using a standard UI)
3.b. Minmal Data
3.c. Improve Performance Iteratively
More from Naresh Jain (20)
Pilgrim's Progress to the Promised Land by Robert Virding
Pilgrim's Progress to the Promised Land by Robert Virding
Anatomy of an eCommerce Search Engine by Mayur Datar
Anatomy of an eCommerce Search Engine by Mayur Datar
Setting up Continuous Delivery Culture for a Large Scale Mobile App
Setting up Continuous Delivery Culture for a Large Scale Mobile App
Towards FutureOps: Stable, Repeatable environments from Dev to Prod
Towards FutureOps: Stable, Repeatable environments from Dev to Prod
No Silver Bullets in Functional Programming by Brian McKenna
No Silver Bullets in Functional Programming by Brian McKenna
Unleashing the Power of Automated Refactoring with JDT
Unleashing the Power of Automated Refactoring with JDT
Getting2Alpha: Turbo-charge your product with Game Thinking by Amy Jo Kim
Getting2Alpha: Turbo-charge your product with Game Thinking by Amy Jo Kim
Techniques for Effectively Slicing User Stories by Naresh Jain
Techniques for Effectively Slicing User Stories by Naresh Jain
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Cracking the code review at SpringIO 2024
Code reviews are vital for ensuring good code quality. They serve as one of our last lines of defense against bugs and subpar code reaching production.
Yet, they often turn into annoying tasks riddled with frustration, hostility, unclear feedback and lack of standards. How can we improve this crucial process?
In this session we will cover:
- The Art of Effective Code Reviews
- Streamlining the Review Process
- Elevating Reviews with Automated Tools
By the end of this presentation, you'll have the knowledge on how to organize and improve your code review proces
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Concurrent languages are Functional by Francesco Cesarini
- 1. © 1999-2017 Erlang Solutions Ltd Concurrent Languages are Functional Francesco Cesarini Founder & Technical Director @ Erlang Solutions @FrancescoC francesco@erlang-solutions.com
- 2. © 1999-2017 Erlang Solutions Ltd 2Source: Warner Bros
- 3. © 1999-2017 Erlang Solutions Ltd Two ways to do concurrency 3 Mutable State Immutable State Msg © 1999-2017 Erlang Solutions Ltd
- 4. © 1999-2017 Erlang Solutions Ltd 4
- 5. © 1999-2017 Erlang Solutions Ltd Y = X2-1 Immutability
- 6. © 1999-2017 Erlang Solutions Ltd Mutability X = X2-1
- 7. © 1999-2017 Erlang Solutions Ltd Mutability X = X2-1
- 8. © 1999-2017 Erlang Solutions Ltd 8 Corrupt State With Mutability
- 9. © 1999-2017 Erlang Solutions Ltd 9 Corrupt State With Mutability
- 10. © 1999-2017 Erlang Solutions Ltd 1 0 Corrupt State With Mutability
- 11. © 1999-2017 Erlang Solutions Ltd 11 Locality With Mutability Bangalore, India London, UK
- 12. © 1999-2017 Erlang Solutions Ltd Connectivity With Mutability 12 Bangalore, India London, UK
- 13. © 1999-2017 Erlang Solutions Ltd 13 Corrupt State With Immutability
- 14. © 1999-2017 Erlang Solutions Ltd 14 Corrupt State With Immutability
- 15. © 1999-2017 Erlang Solutions Ltd 15 Corrupt State With Immutability
- 16. © 1999-2017 Erlang Solutions Ltd 1 6 Locality With Immutability Bangalore, India London, UK
- 17. © 1999-2017 Erlang Solutions Ltd 1 7 Connectivity With Immutability Bangalore, India London, UK
- 18. © 1999-2017 Erlang Solutions Ltd Shared Memory 18 No Shared Memory Msg © 1999-2017 Erlang Solutions Ltd Two ways to do concurrency
- 19. © 1999-2017 Erlang Solutions Ltd
- 20. © 1999-2017 Erlang Solutions Ltd Source: Serious Eats
- 21. © 1999-2017 Erlang Solutions Ltd 21 Distribution
- 22. © 1999-2017 Erlang Solutions Ltd 22 Lambdas & Closures double([H|T]) -> [H*2|double(T)]; double([]) -> []. bump([H|T]) -> [H+1 | bump(T)]; bump([]) -> []. map(Fun, [H|T]) -> [Fun(H)|map(Fun,T)]; map(_Fun, []) -> []. double(L) -> map(fun(X)-> X*2 end,L). bump(L) -> map(fun(X)-> X+1 end,L).
- 23. © 1999-2017 Erlang Solutions Ltd 23 Parallella Board Dual core ARM processor + Epiphany 16/64 core co-processor, FPGA Raspberry Pi 2 Quad core ARM processor, GPU © 1999-2017 Erlang Solutions Ltd From Embedded Devices…
- 24. © 1999-2017 Erlang Solutions Ltd© 1999-2017 Erlang Solutions Ltd 24 ● 93 petaflops/s (November 2016) ● 40,960 Nodes, each with 2 Ivy Bridge multicores and 3 Xeon Phis ● 3,120,000 x86 cores in total Sunway TaihuLight Chinese National University of Defence Technology To the Fastest Computer in the World!
- 25. © 1999-2017 Erlang Solutions Ltd 25
- 26. © 1999-2017 Erlang Solutions Ltd Concurrency + Distribution Immutability Concurrency Distribution
- 27. © 1999-2017 Erlang Solutions Ltd Concurrency + Distribution Immutability Concurrency Distribution Multi-core Parallelism
- 28. © 1999-2017 Erlang Solutions Ltd Concurrency + Distribution Immutability Concurrency Distribution Multi-core Parallelism Scalability Reliability
- 29. © 1999-2017 Erlang Solutions Ltd Distribution Bangalore, India London, UK
- 30. © 1999-2017 Erlang Solutions Ltd Distribution Bangalore, India London, UK
- 31. © 1999-2017 Erlang Solutions Ltd Distribution Synchronous Asynchronous At the Most Once Exactly Once At Least Once Sequential Parallel
- 32. © 1999-2017 Erlang Solutions Ltd 32
- 33. © 1999-2017 Erlang Solutions Ltd 33 “Programming consists of overcoming two things: accidental difficulties, things which are difficult because you happen to be using inadequate programming tools, and things which are actually difficult, which no programming tool or language is going to solve.” - Joel Spolsky Questions?
- 34. © 1999-2017 Erlang Solutions Ltd Francesco Cesarini Founder & Technical Director @ Erlang Solutions @FrancescoC francesco@erlang-solutions.com