The document discusses using queues to improve the scalability of PHP applications. It describes how queues allow asynchronous and distributed processing of tasks to improve performance and allow applications to handle more traffic. Specifically, it promotes using Zend Server's job queue to offload long-running tasks like payments processing so the frontend can scale independently of backend processing. Examples show building jobs that communicate with the queue to asynchronously execute tasks like payments.
This document discusses considerations for load testing websites that utilize Ajax technology. It notes that testing at the HTTP layer allows for scalable testing but can miss client-side interactions. Challenges with HTTP layer testing include hard-coded URLs, recording issues, limitations testing JavaScript-heavy code, and properly handling states and timeouts. Browser-based load testing is an alternative that allows proper simulation of Ajax interactions but lacks scalability, though cloud-based options are improving. The document provides guidance on when each approach is best suited.
This document discusses behavior-driven development (BDD) and automation testing using Cucumber. It begins with an example of a Cucumber scenario for logging into a system. It then demonstrates an automation test case written in Java and discusses how Cucumber executes scenarios. The rest of the document outlines an agenda to discuss BDD, Cucumber automation, developing a Cucumber framework, and the pros and cons of BDD and Cucumber.
This document contains notes from a SQL Server 2008 for Developers course taught by Peter Gfader. The course covered topics such as high availability, online index operations, mirrored backups, and SQL CLR integration. SQL CLR integration allows writing database queries using .NET code. It provides benefits like complex calculations, custom types and aggregates, and leveraging .NET debugging. However, T-SQL is better suited for core data operations. The document provides examples of stored procedures, functions, triggers and other SQL CLR code.
This document discusses using WordPress as a backend for client-side applications. WordPress can function as a model-view-controller framework by handling the database through its API while client-side frameworks like AngularJS manage the views and logic. This allows building single-page applications that make requests to the WordPress API for data instead of loading full page HTML from the server. Benefits include less server load, easier caching, and a more scalable and interactive user experience through AJAX. An example application is discussed that uses WordPress for user authentication and data while employing client-side technologies for video chat, text chat, and user profiles.
APIs are proposed as an alternative to page objects for reducing repetition, improving maintenance and readability in tests. APIs abstract the test code away from the page structure by making calls to functions that interact with the system under test via its API. While APIs can improve tests, they require close cooperation from developers to implement and do not completely replace page objects due to upfront costs.
This document discusses several key concepts in ASP.NET MVC including areas, HTML helpers, partial views, dependency injection, model validation, and asynchronous controller actions. It provides code examples for creating an area, partial view, unit tests, and using model attributes for validation. The document is intended to be part of an ASP.NET MVC training and covers important topics like routing, generating HTML, reusing views, testing, and asynchronous programming.
MAS103 XPages Performance and Scalability from IBM ConnectED 2015, delivered jointly with Tony McGuckin
This document discusses how web design firms can compete with internal GIS teams by providing web-based GIS (WebGIS) applications. It notes that WebGIS requires learning new tools like JavaScript, AJAX, and RESTful services. To protect their work, internal GIS teams need to learn these new web technologies and prioritize usability over features to create responsive applications. The document advocates for an iterative development process with a focus on performance and usability testing.
There’s an old expression, that there are only 2 hard problems in computing: naming, cache invalidation and off-by-one errors. Building offline web apps is all about those hard problems. There are some different ways of storing stuff — such as html5 caching, html5 storage, sqllite, and even native stores such as contacts and calendars — and we’ll sing their praises. But the really hard problems are knowing what to store, whether the stuff is still good or needs refreshing, how much to store, how to resolve conflicts between the client and server, how to integrate with data-specific stores, all in a bewildering cacophony of network and storage limited devices. We’ll spend the bulk of our time on these hard problems, which is probably more useful than api description and sample code. Dave Orchard is Mobile Architect at Salesforce.com and located in Vancouver, Canada. This means being involved in many mobile platforms, architectures, tools, technologies and APIs. Prior to that, he was a co-founder of Ayogo Games and focused on iPhone and ruby/merb/mysql based casual social games. Back further in the mists of time, he was the Web standards lead for BEA Systems for 7 years, including being elected three times to 2 year terms on the W3C Technical Architecture Group chaired by Sir Tim Berners-Lee. Follow Dave on Twitter: @DaveO
This document provides an introduction to ASP.NET MVC, covering the MVC pattern, controllers, actions, routing, views, models, and capturing user input with forms. It discusses key ASP.NET MVC concepts like separation of concerns, the default project structure, and common action filters. The document also provides exercises for readers to create a basic MVC application with a model, controller actions, and views that display and capture data. It concludes by outlining additional topics to be covered in part 2, such as HTML helpers, partial views, and unit testing.
Presentation from the October 2011 meeting of the Northern Virginia Test Automation Interest Group on testing web performance.
Looking at performance may quickly become a tuning exercise, the hunt for the last 2% algorithmic improvement or JVM parameter readjustment. This presentation takes a somewhat more removed look at Enterprise Java performance - taking in the broader picture of the entire multi-tier architecture and applying common sense performance concepts from every day life an applying those to enterprise Java architectures. To serve as an eye opener. (originally created for the Oracle Technology Day on Java Enterprise Performance, May 2011, The Netherlands)
Presentation from first Selenium conference in Europe - Selenium Camp (http://seleniumcamp.com) about different test design approaches to make functional tests on Selenium more flexible, reliable and stable.
The ASP.NET MVC Framework provides a powerful Model View Controller (MVC) approach to building web applications and provides separation of concerns, control over HTML output, intuitive URLs, and increased testability. We will start by looking at the what and why of ASP.NET MVC. Then we will explore the various pieces of ASP.NET MVC including routes, controllers, actions, and views. If you are looking to get started with MVC then don’t miss this session.
Understand the basics of the Model-View-Controller pattern and explore the differences between ASP.NET Web forms and MVC applications.
Gearman is a framework for writing distributed applications across many nodes. It allows you to do work in parallel, load balance processes and write applications across several programming languages. In this presentation we'll learn how to get started writing Gearman-powered applications in Perl.
This document outlines the plan and process for building a web application using ASP.NET MVC 3-tier architecture. It describes requirements for a link sharing portal, defines user and admin roles, designs the database schema and business objects, and outlines the controller and view logic for the user interface. Implementation steps include creating the data access layer, business logic layer, and MVC presentation layer to build out features like user registration, link submission, category management, and authentication.
This document discusses using queues to improve the scalability of PHP applications. Queues allow asynchronous and distributed processing of tasks to improve performance and allow applications to handle more traffic. The document recommends using Zend Server's job queue to process long-running or asynchronous tasks outside the main request. It provides an example of using the job queue to asynchronously process payments in Magento to improve the customer experience.
This document summarizes an upcoming tour by Kevin Schroeder of Zend Technologies to discuss various topics including: - An introduction to Kevin and what he does at Zend - An overview of Zend products like Zend Framework and Zend Server - A discussion of performance, scalability, and queuing in PHP applications - A demonstration of using the Zend Server job queue to asynchronously process tasks - Considerations for deploying PHP applications in different environments like development, testing, staging, and production
This document provides an overview of key concepts for building single-page web applications. It discusses client-server relationships, routing, views and content rendering, global event handling, dependency management, initialization and execution, form handling. The document emphasizes defining RESTful APIs, rendering HTML on the server when possible, using a dependency library like RequireJS, and following conventions to manage initialization and execution of code.
The document provides an overview of getting started with the Zend Framework. It discusses setting up the project structure, installing Zend Framework, configuring Apache and php.ini settings, creating controllers and views, using layouts, setting up the database adapter and models, creating and using forms, and handling errors. Example code is provided for common tasks like bootstrapping the framework, creating controllers, views, models and forms.