Min-Maxing Software Costs

Silex is a brand new PHP 5.3 micro framework built on top of the Symfony2 de decoupled components. In this session, we will discover how to build and deploy powerful REST web services with such a micro framework and its embedded tools. The first part of this talk will introduce the basics of the REST architecture. We fill focus on the main concepts of REST like HTTP methods, URIs and open formats like XML and JSON. Then, we will discover how to deploy REST services using most of interesting Silex tools like database abstraction layer, template engine and input validation. We will also look at unit and functional testing frameworks with PHPUnit and HTTP caching with Edge Side Includes and Varnish support to improve performances.

As presented at ZendCon 2014, AmsterdamPHP, PHPBenelux 2014, Sweetlake PHP and PHP Northwest 2013, an overview of some different patterns for integrating and managing logic throughout your application.

Replacing dependents with doubles is a central part of testing that every developer has to master. This talk goes over the different types of doubles and explains their place in testing, how to implement them in a mainstream mocking framework, and which strategies or doubles to use in different message exchange scenarios between objects. After this talk you will have moved a step forward in your understanding of testing in the context of object oriented programming.

This session introduces most well known design patterns to build PHP classes and objects that need to store and fetch data from a relational databases. The session will describe the difference between of the Active Record, the Table and Row Data Gateway and the Data Mapper pattern. We will also examine some technical advantages and drawbacks of these implementations. This talk will expose some of the best PHP tools, which ease database interactions and are built on top of these patterns.

All projects start with a lot of enthusiasm. As many projects grow the technical debt gets bigger and the enthusiasm gets less. Almost any developer can develop a great project, but the key is maintaining an ever evolving application with minimal technical debt without loosing enthusiasm. During this talk you will be taken on the journey of application design. The starting point is an application that looks fine but contains lots of potential pitfalls. We will address the problems and solve them with beautiful design. We end up with testable, nicely separated software with a clear intention.

This document summarizes the history of PHP persistence from 1995 to present day. It begins with early file handling in PHP/FI in 1995 and the introduction of database support. It then discusses the evolution of code reusability through functions and classes. Professional abstraction layers like PEAR and later ORM frameworks provided more robust and standardized APIs. NoSQL databases and drivers were later incorporated, moving beyond relational databases. Current frameworks provide object document mapping for non-SQL databases like MongoDB.

Presentation for Symfony Camp UA 2012. * What are Rich Model, Service Layer & Layered Architecture * Layered architecture in Sf2 Application * Integration with 3rd party bundles

Why async and functional programming in PHP7 suck and how to get over it? www.xsolve.pl/nobodyexpects

As presented at Dutch PHP Conference 2015, an introduction to command buses, how to implement your own in PHP and why they're both useful but unimportant.

This document discusses building web services using the Zend Framework. It introduces key components for building SOAP, XML-RPC, and RESTful services, including the Zend_Soap, Zend_XmlRpc, and Zend_Rest libraries. It provides an example of building a timesheet API and exposing it through different protocols, demonstrating how to define methods, handle requests and responses, and implement clients. Documentation of the API using docblocks is also covered.

Slides from my talk at Dutch PHP Conference in Amsterdam More Domain-Driven Design related content at: https://domaincentric.net/

Slides from my talk at 4Developers conference in Warsaw More Domain-Driven Design related content at: https://domaincentric.net/

The document discusses using CQRS and event sourcing in a Symfony application. It covers building the domain model to use events, storing events in a repository, using a message bus for commands and events, and creating projections from events for querying. Event handlers can trigger new commands, and projections rebuild data from events for fast reads. The approach allows an application to handle commands asynchronously through decoupled services while maintaining an immutable record of events for audit purposes.

The document contains code for unit testing a PHP MVC application using PHPUnit. It includes: - Code for the Todo model and its tests using PHPUnit assertions. - Configuration for PHPUnit to run tests for the application and library. - Tests for the IndexController using a Test_ControllerTestCase class with helper methods. - Code for Request, Response and View classes to mock the MVC framework. - A test to interact with the application interface using Selenium. The document shows the project structure for an MVC application and library with tests. It demonstrates how to test models, controllers and the user interface using test doubles, assertions and helper methods in PHPUnit.

Slides from my talk at PHPers meet-up in Cracow More Domain-Driven Design related content at: https://domaincentric.net/

Dependency Injection (DI) is a fantastic technique, but what if you what to use dependency injection in your legacy application. Fear not! As someone who as done this very thing, I will show how you can successful and incrementally add DI to any application. I will present a number of recipes and solutions to common problems and give a tour of the various PHP DI projects and how they can help.

My slides on PHPSpec 2 from Symfony November Camp Stockholm. www.symfony.se/november-camp/ More Domain-Driven Design related content at: https://domaincentric.net/

This document discusses strategies for moving away from legacy code using behavior-driven development (BDD). It summarizes three popular options: 1) Rewriting the entire application from scratch using best practices, 2) Doing technical refactoring of the code, and 3) Taking a business-focused approach using the "BDD pipeline" which involves impact mapping, prioritizing features, example workshops, and BDD layers to support planned changes. The presenter argues that the third option of a BDD pipeline is preferable to a full rewrite or only technical refactoring as it focuses on delivering business value over time rather than rewriting the code.

Agile is defined by an open development process driven by collaboration. But we know that collaboration is not always easy, and we need to come up with creative ways of establishing and supporting it. For this reason, the agile community was very busy in the last decade coming up with new and innovative tools to boost collaboration - eg story mapping, impact mapping, example mapping, risk brainstorming, the 3 amigos workshop, stakeholder mapping, event storming etc. There are a lot of tools. But how do all they fit together, and when should you use one or another in the wider context of a project delivery? This is a very practical session that will attempt to group and present modern agile tools in the context of project delivery and provide guidance recommendations for their use.

Greenfield projects are awesome – you can develop highest quality application using best practices on the market. But what if your bread actually is Legacy projects? Does it mean that you need to descend into darkness of QA absence? Does it mean that you can’t use Agile or modern communication practices like BDD? This talk will show you how to be successful even with the oldest legacy projects out there through the usage of Agile processes and tools like Impact Mapping, Feature Mapping, Example Workshop, Story and Spec BDDs.

Behaviour Driven Development (BDD) and Domain Driven Design (DDD) seen a great growth in adoption in recent years. We are all creating new practices and tools that try and bring these two very important modern methodologies together. What if we have it backwards and they were actually together all along? What if most of the misunderstandings and challenges we face in implementing BDD are spawned from the very simple mistake of us separating something that was created as a whole? In this talk we'll delve into BDD as it was meant to be done from the beginning and look at its very rooted connection with the software design.

BDD focuses on using scenarios to eliminate translation costs in conversations between business and technical teams. It uses scenarios to drive development and testing at multiple levels. DDD also aims to reduce translation costs, but focuses on eliminating them in code through the use of domain models. Both approaches help facilitate a shared ubiquitous language between business and technical teams to improve understanding and ensure the system meets business needs.

What is the purpose of BDD and how it fits into the Agile development? If you ever wondered what are the benefits of BDD or why should you care about tools like Behat or PhpSpec, this talk will try to guide you through the reasoning and goals of modern Agile practices and tools in PHP.

Agile is defined by an open development process driven by collaboration. But you know that collaboration is not always an easy process and in a lot of cases you need to come up with creative ways of establishing and supporting it. By that reason Agile community was very busy in the last decade coming up with new and innovative tools to boost collaboration on different aspects of development and planning - Story Mapping, Impact Mapping, Example Mapping, Risk Brainstorming, Three Amigos workshop, Stakeholder Mapping, Event Storming, etc. There’s a lot of tools. But how do all they fit together and when should you use one or another in the wider context of a project delivery? This is a very practical talk that will attempt to group and present modern Agile tools in the context of project delivery and will provide guidance recommendations for their use.

Greenfield projects are bunch of fun – you can apply craziest cutting edge architecture decisions and use best practices on the market. But what if you stuck in a Legacy project? Does it mean that you need to descend into darkness of despair on every required change? Does it mean that you can’t effectively use Agile or any modern design practices or tools? This talk will show you how to be successful even with the oldest legacy projects out there through the focus on value and measurement. It will present couple of ways to approach software rewrites and maintain sanity when working with haphazardly put together code.

История и примеры использования BDD в PHP и ZF с помощью Behat и Mink.

The document discusses bridging communication gaps and the evolution of agile processes. It describes the speaker's journey into behavior driven development (BDD) and how agile processes have changed at their company, Inviqa. It emphasizes that discovering business needs, exploring options, and making commitments are important for software development. Building the right thing, building it right, and building for the right reasons are highlighted.

Greenfield projects are awesome – you can develop highest quality application using best practices on the market. But what if your bread actually is Legacy projects? Does it mean that you need to descend into darkness of QA absence? This talk will show you how to be successful even with the oldest legacy projects out there through the introduction of Agile processes and tools like Behat.

In the first part of the presentation we see how Symfony2 implements HTTP cache. In the second one there's an explanation of why application cache layers suck, why nerly every php application does caching in the less productive way and how you benefit from HTTP cache from this point of view.

Backbone.js is a JavaScript framework that aims to solve issues with messy JavaScript code by implementing an MVC pattern and object-oriented principles, providing structure through core concepts like Models for data storage, Collections for grouping Models, and Views for rendering display logic, as well as a Router for navigation. It is lightweight at only 6kb and supports RESTful JSON APIs and event-driven programming.

By the sum of PHPUnit assertion power and Symfony2 functional testing tools the developer can obtain a deep control on the developed application. Here you can find some suggestions on how to leverage that power.

Showing how to use an API layer within Zend Framework and still use the full MVC structure to keep your apps

This document discusses using Zend Framework components to create web services. It describes creating an API class to move logic out of controllers and structure the application. The API class is used to build XML-RPC, SOAP, and REST servers and clients to access a timesheet application. DocBlocks are recommended to document the API. Moving functionality to a reusable API library saves development time and makes the application more maintainable and testable.

This document provides an overview of using the Backbone.js framework for client-side MVC applications. It discusses why Backbone is useful for structuring JavaScript applications, its core architecture including models, collections, views and routers. It also provides examples of how to convert jQuery code to use a Backbone-based approach and lists some real-world applications that use Backbone.

practical examples of how I used Catalyst and DBIx::Class to write http://osx.iusethis.com/, a social-software site for software.

These are slides to my presentation on Virtual Madness - the virtual machine management platform at Etsy.

The document describes the Backbone.js framework and how it can be used to build single page applications. It explains the core components of Backbone - Models, Collections, Views and Routers. It provides examples of initializing a Backbone application, defining models and collections, creating views to render data, and setting up routes and navigation. It also covers events, templating, and best practices for structuring Backbone code into separate JavaScript files for models, collections, views etc.

Come to this talk prepared to learn about the Doctrine PHP open source project. The Doctrine project has been around for over a decade and has evolved from database abstraction software that dates back to the PEAR days. The packages provided by the Doctrine project have been downloaded almost 500 million times from packagist. In this talk we will take you through how to get started with Doctrine and how to take advantage of some of the more advanced features.

This document discusses why CRUD (Create, Read, Update, Delete) is generally not a good approach for designing application code and APIs. It argues that entities should follow real business rules and scenarios rather than allowing arbitrary setting of attributes. Setters in particular are problematic as they don't map to real-world actions and don't enforce data integrity. The document recommends focusing on expressive methods that model real use cases rather than generic update operations. It also discusses how to add a CRUD layer on top of an internal domain model if needed while still maintaining encapsulation. The key takeaway is that applications should be designed around rich domain objects and real business behaviors rather than simple data access patterns.

The document discusses unit testing Zend Framework applications. It provides an overview of setting up PHPUnit for testing, including creating a phpunit.xml file and TestHelper bootstrap file. It also discusses testing Zend Forms and Models, including writing tests to validate form data and test that models are empty on construction. Code examples are provided for writing tests for a CommentForm and CommentModel class.

In 2010, I told everyone how to start unit testing Zend Framework applications. In 2011, let’s take this a step further by testing services, work flows and performance. Looking to raise the bar on quality? Let this talk be the push you need to improve your Zend Framework projects.

Closing keynote, as presented at Codemotion 2014, LaraconEU 2014, Redevelop 2014, CodeConnexx 2013 and PHP North East 2014. This presentation makes a reference to a reading list I received. For those interested, the release consists of most of the general classics, such as Gang Of Four "Design Patterns", The Pragmatic Programmer, Structure and Interpretation of Computer Programs, Domain Driven Design and a few others. The actual list remains tucked away in a box somewhere.

The document discusses several ways to write readable code, including using proper formatting and spacing, clear and consistent naming conventions, modular code structure, and refactoring techniques. It provides examples of good code formatting practices like adding spacing before returns, arranging variables consistently, using descriptive names instead of abbreviations, and prefixing variables and methods for clarity. The document emphasizes that readable code clearly communicates intent to readers.

You must’ve heard of Unit testing… If not, then this talk is definitely for you! If you do know Unit testing, you probably ran at some point into a hurdle: “Where do I start?” And despite your best efforts, you end up not having enough tests for your application – Then that change request comes in, requiring you to change that very same complex piece of code for which you are lacking tests! How do you going refactor while maintaining all those ‘undocumented’ business rules? This talk will show how Codeception can be leveraged to refactor the visuals aspects of an application, maintaining backwards compatibility on API changes and even assist in moving to a whole different server infrastructure.

Tests should focus on validating behavior and outcomes rather than implementation details. Avoid testing private methods or mocking them, as this tests implementation rather than public interface. Follow a test-driven development process of red-green-refactor to incrementally develop testable code and avoid large untested code blocks. Workshops were offered to help learn techniques for writing high-quality unit tests.

The document discusses how Symfony 1.2 supports RESTful routes out of the box. It provides examples of how to configure routes to support different HTTP methods like GET, POST, PUT, DELETE. It also describes how to create custom route classes to support additional route matching and generation behaviors, like domain routing based on subdomains. Overall, the document shows how Symfony 1.2 allows developers to easily create RESTful applications by mapping URLs to controller actions and resources in a RESTful way.

The document discusses unit testing Zend Framework applications. It begins by explaining the importance of testing and some common excuses for not testing. It then provides examples of setting up PHPUnit configuration and bootstrap files for testing Zend Framework applications. The document demonstrates how to write tests for Zend Forms and models, including testing with both valid and invalid data. It shows how to modify models to add validation filters and validators.

https://speakerdeck.com/willroth/50-laravel-tricks-in-50-minutes - origin Laravel 5.1 raised the bar for framework documentation, but there's much, much more lurking beneath the surface. In this 50-minute session, we'll explore 50 (yes, 50!) high-leverage implementation tips & tricks that you just won't find in the docs: the IoC Container, Blade, Eloquent, Middleware, Routing, Commands, Queues, Events, Caching — we'll cover them all! Join us as we drink from the fire hose & learn to take advantage of everything that Laravel has to offer to build better software faster!

If you’ve ever had to analyze a map or GPS data, chances are you’ve encountered and even worked with coordinate systems. As historical data continually updates through GPS, understanding coordinate systems is increasingly crucial. However, not everyone knows why they exist or how to effectively use them for data-driven insights. During this webinar, you’ll learn exactly what coordinate systems are and how you can use FME to maintain and transform your data’s coordinate systems in an easy-to-digest way, accurately representing the geographical space that it exists within. During this webinar, you will have the chance to: - Enhance Your Understanding: Gain a clear overview of what coordinate systems are and their value - Learn Practical Applications: Why we need datams and projections, plus units between coordinate systems - Maximize with FME: Understand how FME handles coordinate systems, including a brief summary of the 3 main reprojectors - Custom Coordinate Systems: Learn how to work with FME and coordinate systems beyond what is natively supported - Look Ahead: Gain insights into where FME is headed with coordinate systems in the future Don’t miss the opportunity to improve the value you receive from your coordinate system data, ultimately allowing you to streamline your data analysis and maximize your time. See you there!

Is your patent a vanity piece of paper for your office wall? Or is it a reliable, defendable, assertable, property right? The difference is often quality. Is your patent simply a transactional cost and a large pile of legal bills for your startup? Or is it a leverageable asset worthy of attracting precious investment dollars, worth its cost in multiples of valuation? The difference is often quality. Is your patent application only good enough to get through the examination process? Or has it been crafted to stand the tests of time and varied audiences if you later need to assert that document against an infringer, find yourself litigating with it in an Article 3 Court at the hands of a judge and jury, God forbid, end up having to defend its validity at the PTAB, or even needing to use it to block pirated imports at the International Trade Commission? The difference is often quality. Quality will be our focus for a good chunk of the remainder of this season. What goes into a quality patent, and where possible, how do you get it without breaking the bank? ** Episode Overview ** In this first episode of our quality series, Kristen Hansen and the panel discuss: ⦿ What do we mean when we say patent quality? ⦿ Why is patent quality important? ⦿ How to balance quality and budget ⦿ The importance of searching, continuations, and draftsperson domain expertise ⦿ Very practical tips, tricks, examples, and Kristen’s Musts for drafting quality applications https://www.aurorapatents.com/patently-strategic-podcast.html

Stream processing is a crucial component of modern data infrastructure, but constructing an efficient and scalable stream processing system can be challenging. Decoupling compute and storage architecture has emerged as an effective solution to these challenges, but it can introduce high latency issues, especially when dealing with complex continuous queries that necessitate managing extra-large internal states. In this talk, we focus on addressing the high latency issues associated with S3 storage in stream processing systems that employ a decoupled compute and storage architecture. We delve into the root causes of latency in this context and explore various techniques to minimize the impact of S3 latency on stream processing performance. Our proposed approach is to implement a tiered storage mechanism that leverages a blend of high-performance and low-cost storage tiers to reduce data movement between the compute and storage layers while maintaining efficient processing. Throughout the talk, we will present experimental results that demonstrate the effectiveness of our approach in mitigating the impact of S3 latency on stream processing. By the end of the talk, attendees will have gained insights into how to optimize their stream processing systems for reduced latency and improved cost-efficiency.

Kief Morris rethinks the infrastructure code delivery lifecycle, advocating for a shift towards composable infrastructure systems. We should shift to designing around deployable components rather than code modules, use more useful levels of abstraction, and drive design and deployment from applications rather than bottom-up, monolithic architecture and delivery.

Manual Method of Product Research | Helium10 | MBS RETRIEVER

As a popular open-source library for analytics engineering, dbt is often used in combination with Airflow. Orchestrating and executing dbt models as DAGs ensures an additional layer of control over tasks, observability, and provides a reliable, scalable environment to run dbt models. This webinar will cover a step-by-step guide to Cosmos, an open source package from Astronomer that helps you easily run your dbt Core projects as Airflow DAGs and Task Groups, all with just a few lines of code. We’ll walk through: - Standard ways of running dbt (and when to utilize other methods) - How Cosmos can be used to run and visualize your dbt projects in Airflow - Common challenges and how to address them, including performance, dependency conflicts, and more - How running dbt projects in Airflow helps with cost optimization Webinar given on 9 July 2024

Recent advancements in the NIST-JARVIS infrastructure: JARVIS-Overview, JARVIS-DFT, AtomGPT, ALIGNN, JARVIS-Leaderboard

YOUR RELIABLE WEB DESIGN & DEVELOPMENT TEAM — FOR LASTING SUCCESS WPRiders is a web development company specialized in WordPress and WooCommerce websites and plugins for customers around the world. The company is headquartered in Bucharest, Romania, but our team members are located all over the world. Our customers are primarily from the US and Western Europe, but we have clients from Australia, Canada and other areas as well. Some facts about WPRiders and why we are one of the best firms around: More than 700 five-star reviews! You can check them here. 1500 WordPress projects delivered. We respond 80% faster than other firms! Data provided by Freshdesk. We’ve been in business since 2015. We are located in 7 countries and have 22 team members. With so many projects delivered, our team knows what works and what doesn’t when it comes to WordPress and WooCommerce. Our team members are: - highly experienced developers (employees & contractors with 5 -10+ years of experience), - great designers with an eye for UX/UI with 10+ years of experience - project managers with development background who speak both tech and non-tech - QA specialists - Conversion Rate Optimisation - CRO experts They are all working together to provide you with the best possible service. We are passionate about WordPress, and we love creating custom solutions that help our clients achieve their goals. At WPRiders, we are committed to building long-term relationships with our clients. We believe in accountability, in doing the right thing, as well as in transparency and open communication. You can read more about WPRiders on the About us page.

Support en anglais diffusé lors de l'événement 100% IA organisé dans les locaux parisiens d'Iguane Solutions, le mardi 2 juillet 2024 : - Présentation de notre plateforme IA plug and play : ses fonctionnalités avancées, telles que son interface utilisateur intuitive, son copilot puissant et des outils de monitoring performants. - REX client : Cyril Janssens, CTO d’ easybourse, partage son expérience d’utilisation de notre plateforme IA plug & play.

Our Linux Web Hosting plans offer unbeatable performance, security, and scalability, ensuring your website runs smoothly and efficiently. Visit- https://onliveserver.com/linux-web-hosting/

Password Rotation in 2024 is still Relevant

Invited Remote Lecture to SC21 The International Conference for High Performance Computing, Networking, Storage, and Analysis St. Louis, Missouri November 18, 2021

Have you noticed the OpenSSF Scorecard badges on the official Dart and Flutter repos? It's Google's way of showing that they care about security. Practices such as pinning dependencies, branch protection, required reviews, continuous integration tests etc. are measured to provide a score and accompanying badge. You can do the same for your projects, and this presentation will show you how, with an emphasis on the unique challenges that come up when working with Dart and Flutter. The session will provide a walkthrough of the steps involved in securing a first repository, and then what it takes to repeat that process across an organization with multiple repos. It will also look at the ongoing maintenance involved once scorecards have been implemented, and how aspects of that maintenance can be better automated to minimize toil.

Revolutionize your transportation processes with our cutting-edge RPA software. Automate repetitive tasks, reduce costs, and enhance efficiency in the logistics sector with our advanced solutions.

We are honored to launch and host this event for our UiPath Polish Community, with the help of our partners - Proservartner! We certainly hope we have managed to spike your interest in the subjects to be presented and the incredible networking opportunities at hand, too! Check out our proposed agenda below 👇👇 08:30 ☕ Welcome coffee (30') 09:00 Opening note/ Intro to UiPath Community (10') Cristina Vidu, Global Manager, Marketing Community @UiPath Dawid Kot, Digital Transformation Lead @Proservartner 09:10 Cloud migration - Proservartner & DOVISTA case study (30') Marcin Drozdowski, Automation CoE Manager @DOVISTA Pawel Kamiński, RPA developer @DOVISTA Mikolaj Zielinski, UiPath MVP, Senior Solutions Engineer @Proservartner 09:40 From bottlenecks to breakthroughs: Citizen Development in action (25') Pawel Poplawski, Director, Improvement and Automation @McCormick & Company Michał Cieślak, Senior Manager, Automation Programs @McCormick & Company 10:05 Next-level bots: API integration in UiPath Studio (30') Mikolaj Zielinski, UiPath MVP, Senior Solutions Engineer @Proservartner 10:35 ☕ Coffee Break (15') 10:50 Document Understanding with my RPA Companion (45') Ewa Gruszka, Enterprise Sales Specialist, AI & ML @UiPath 11:35 Power up your Robots: GenAI and GPT in REFramework (45') Krzysztof Karaszewski, Global RPA Product Manager 12:20 🍕 Lunch Break (1hr) 13:20 From Concept to Quality: UiPath Test Suite for AI-powered Knowledge Bots (30') Kamil Miśko, UiPath MVP, Senior RPA Developer @Zurich Insurance 13:50 Communications Mining - focus on AI capabilities (30') Thomasz Wierzbicki, Business Analyst @Office Samurai 14:20 Polish MVP panel: Insights on MVP award achievements and career profiling

Blockchain technology is transforming industries and reshaping the way we conduct business, manage data, and secure transactions. Whether you're new to blockchain or looking to deepen your knowledge, our guidebook, "Blockchain for Dummies", is your ultimate resource.

Today’s digitally connected world presents a wide range of security challenges for enterprises. Insider security threats are particularly noteworthy because they have the potential to cause significant harm. Unlike external threats, insider risks originate from within the company, making them more subtle and challenging to identify. This blog aims to provide a comprehensive understanding of insider security threats, including their types, examples, effects, and mitigation techniques.

Java Servlet programs

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Quantum Communications Q&A with Gemini LLM. These are based on Shannon's Noisy channel Theorem and offers how the classical theory applies to the quantum world.