Article Network

Agile Works Best in PHP Projects

by Samisa Abeysinghe | August 2009 | PHP

We are developing software for users, and we want to ensure that the software is really useful for the users. Over time, people working on this software have faced the same problem over and over again. Therefore, they have come up with a concept called agile development. In this article, we will explore the concepts of agile development and will also see how these can help us with the PHP projects.

In this article by Samisa Abeysinghe, we will cover the following:

  • What is meant by agility and how it can help
  • Extreme programming principles
  • Advantages of agile process models
  • Team agility
  • Agile process models
  • Agile principles for the PHP project team
Read Agile Works Best in PHP Projects in full

Agile with Yii 1.1 and PHP5: The TrackStar Application

by Jeffrey Winesett | August 2010 | Open Source PHP Web Development

In order to understand the framework in the context of a real-world application, we need to build something that will more closely resemble the types of applications web developers actually have to build. That is exactly what we are going to be doing.

In this article by Jeffery Winesett, author of Agile Web Application Development with Yii1.1 and PHP5, we introduce the project task tracking application called TrackStar. There are many other project management and issue tracking applications out there in the world, and the basic functionality of ours will not be any different from many of these. So why build it, you ask? It turns out that this type of user-based application has many features that are common to a great many web applications out there. This will allow us to achieve two primary goals:

  • Showcase Yii's incredible utility and feature set as we build useful functionality and conquer real-world web application challenges
  • Provide real-world examples and approaches that will be immediately applicable to your next web application project
Read Agile with Yii 1.1 and PHP5: The TrackStar Application in full

Agile with Yii 1.1 and PHP5: Creating themes

by Jeffrey Winesett | August 2010 | Open Source PHP Web Development

Themes provide a systematic way of customizing the design layout of a web application. One of the many benefits of an MVC architecture is the separation of the presentation tier from both the rest of the back-end stuff. Themes make great use of this separation by allowing you to easily and dramatically change the overall look and feel of a web application during runtime. Yii allows for an extremely easy application of themes to provide great flexibility in your web application design.

In this article by Jeffery Winesett, author of the book Agile Web Application Development with Yii1.1 and PHP5, we will cover the following topics:

  • Building themes in Yii
  • Creating a Yii theme
  • Configuring the application to use a theme
Read Agile with Yii 1.1 and PHP5: Creating themes in full

Aggregate Services in ServiceMix JBI ESB

by Binildas A. Christudas | November 2007 | BPEL SOA Web Services Java Open Source

Integration is a necessary evil using which we can interconnect systems, applications and services to facilitate seamless information flow within and across Organization boundaries. We have been using technologies like JSP, EJB, JMS, etc. in the Java world for building Enterprise Applications (EA). But if we have to interconnect such applications, we will need Enterprise Application Integration (EAI). Many a times we also use EA technologies and tools to do EAI. This will give a short term solution to our integration problems, which may not scale up when we want to perform integration at Enterprise (Customers, Vendors, Partners, ...) level. Java Business Integration (JBI) is the new specification trying to fill this gap of EAI in the Java world. So next time when you want to integrate, don't write a single line of Java code, instead plug and assemble JBI based integration libraries to control your message flow! Does it looks promising? Believe it or read the article below to get yourself convinced.

In this article by Binildas Christudas, we will look into Integration in general and to JBI and ESB in particular. We will then explain few functionalities usually done by integration components like protocol conversions, content transformations, etc., with some code snippets too.

Read Aggregate Services in ServiceMix JBI ESB in full

Advantages and History of OpenVPN

by Markus Feilner | December 2009 | Linux Servers Networking & Telephony Open Source

In the mid 1990s, the rise of the Internet and the increase in speed of cheap Internet connections paved the way for new technologies. This lead to the idea of providing secure connections between enterprise branches through low-cost lines using the Internet. This is a very basic description of what VPNs are all about.

In this article by Markus Feilner, we will discuss the features and advantages of OpenVPN followed by its release history.

Read Advantages and History of OpenVPN in full

Advanced WordPress Themes

by Lee Jordan Nick Ohrn | June 2010 | Content Management Open Source Web Development WordPress

In this article by Lee Jordan and Nick Ohrn, authors of the book WordPress 2.8 Themes Cookbook, we will cover:

  • Adding a theme options page
  • Allowing for multiple theme color schemes
  • Changing the default Gravatar icon for your theme
Read Advanced WordPress Themes in full

Advanced Theme in Liferay User Interface Development

by Frank Yu Jonas X. Yuan Xinsheng Chen | November 2010 | Open Source

Advanced Theme, provides details about what can be done for advanced themes. It covers how to change the value of the theme.parent property for theme creation, and addressed how to add color schemes, how to use Configurable settings in a theme and Pre-defined theme settings, how to embed portlets in a theme, and other topics like theme upgrade, creating a FreeMarker-template theme, brower compatibility, Liferay IDE, and other development tools.

A typical portal page consists of a theme, a layout template, and one or more portlets.

In this article, by Jonas X. Yuan, Xinsheng Chen & Frank Yu, authors of Liferay User Interface Development, we will explore some aspects of a theme in depth and elaborate on the following theme topics:

  • Changing the value of the theme.parent property for theme creation
  • Adding color schemes
  • Configurable settings in a theme
  • Pre-defined theme settings
  • Embedding portlets in a theme
  • Theme upgrade
  • Creating a FreeMarker-template theme
  • Brower compatibility
  • Liferay IDE and other development tools

We will have some lab activities of adding color schemes to a theme and upgrading a theme to Liferay Portal 6.

Read Advanced Theme in Liferay User Interface Development in full

Advanced System Management

by Rich Pinkall Pollei | October 2013 | Open Source

In this article by Rich Pinkall Pollei, the author of the book Debian 7: System Administration Best Practices, we'll cover briefly several advanced administration subjects. Configuration administration will be covered, and we will briefly look at cluster management. Finally, we will look at one of the most useful administration tools for any Linux system, Webmin.

Read Advanced System Management in full

Advanced SOQL Statements

by Magulan D | April 2014 | e-Commerce Open Source

This article by Magulan D., the author of the book Getting Started with SOQL, gives more information on how to write advanced SOQL statements. This article deals with querying the records for one or more objects in a single SOQL statement. In this case, there should be some relationship among the objects. In Salesforce.com, we cannot query the records from two or more objects if they don't have a relationship between them. The relationships that are available in Salesforce.com are lookup relationship and master-detail relationship.

Read Advanced SOQL Statements in full

Advanced Performance Strategies

by Steve Perkins | April 2013 | Open Source

In this article by Steve Perkins, author of Hibernate Search by Example, we will look at some advanced strategies for improving the performance and scalability of production applications, through code as well as server architecture.

Read Advanced Performance Strategies in full

Advanced Output Formats in Python 2.6 Text Processing

by Jeff McNeil | December 2010 | Beginner's Guides Open Source

In this article, by Jeff McNeil, author of Python 2.6 Text Processing Beginner's Guide, we'll look at some advanced techniques for generating richer text formats. Up until now, we've largely concerned ourselves with plain text output. Here, we'll shift a little bit. Instead of outputting plain text, we'll look at a few commonly used rich formats.

Specifically, we'll look at how to do the following:

  • Build simple PDF output using the ReportLab Toolkit's high level PLATYPUS framework.
  • Generation of true Microsoft Excel output using the xlwt module.
  • Programmatically create and save OpenDocument files. This is the file format used by Open Office and quite a few other applications. Microsoft Word 2007 supports this format (though not by default).
  • Open and edit existing OpenDocument files so that we can use them as templates sources.
Read Advanced Output Formats in Python 2.6 Text Processing in full

Advanced Matplotlib: Part 1

by Sandro Tosi | October 2009 | Open Source

In this article by Sandro Tosi we are about to explore some advanced aspects of Matplotlib. The topics that we are going to cover in detail are:

  • Matplotlib's object-oriented interface
  • Subplots and multiple figures
  • Additional and shared axes
  • Logarithmic scaled axes
  • Date plotting with ticks formatting and locators
  • Text properties, fonts, LaTeX typewriting
  • Contour plots and image plotting
Read Advanced Matplotlib: Part 1 in full

Advanced Lighting in 3D Graphics with XNA Game Studio 4.0

by Sean James | December 2010 | Open Source Web Graphics & Video

By the end of the previous article, Introduction to HLSL in 3D Graphics with XNA Game Studio 4.0, we had developed a system to draw a model with custom effects and we had created an effect that rendered a directional light shining onto a model. This is useful if we want a scene with only sunlight, for example, but what if we wanted to light up a specific area? To start with, we'd need a light type that more accurately models real world lights—the "point" light. We will start this article by implementing this type of light in HLSL. We will then look at a similar light type—the "spot" light. We will spend the rest of the article, by Sean James, author of 3D Graphics with XNA Game Studio 4.0, looking at two ways to draw multiple lights at the same time.

Read Advanced Lighting in 3D Graphics with XNA Game Studio 4.0 in full

Advanced JIRA 5.2 Features

by Patrick Li | August 2013 | Enterprise Articles

In this article by Patrick Li, author of JIRA 5.2 Essentials , we will take a look at two add-ons that can transform your JIRA to be more than just a simple issue-tracking system. By the end of the article, you will have learned how to:

  • Run agile projects in JIRA with GreenHopper
  • Collect feedback from visitors directly on your website with Issue Collector
Read Advanced JIRA 5.2 Features in full

Advanced Indexing and Array Concepts

by Ivan Idris | December 2012 | Cookbooks Open Source

In this article by Ivan Idris, the author of NumPy Cookbook, we will learn some of NumPy's more advanced and tricky indexing techniques. NumPy has very efficient arrays that are easy to use due to their powerful indexing mechanism. NumPy is famous for its efficient arrays. This fame is partly due to the ease of indexing. We will demonstrate advanced indexing tricks using images.

In this article, we will cover:

  • Installing SciPy

  • Installing PIL

  • Resizing images

  • Comparing views and copies

  • Flipping Lena

  • Fancy indexing

  • Indexing with a list of locations

  • Indexing with booleans

  • Stride tricks for Sudoku

  • Broadcasting arrays

Before diving into indexing, we will install the necessary software — SciPy and PIL. Some of the examples in this article will involve manipulating images. In order to do that, we will require the Python Image Library (PIL); but don't worry, instructions and pointers to help you install PIL and other necessary Python software are given throughout the article, when necessary.

Read Advanced Indexing and Array Concepts in full

Advanced Image Processing with ImageJ

by Javier Pascau José María Mateos Pérez | September 2013 | Open Source

In this article, by José María Mateos Pérez, Javier Pascau, the authors of Image Processing with ImageJ, discusses how to extend our abilities to measure and manipulate our images First we will learn what are selections, regions of interest, and overlays, and how to work with them and what can be measured using these tools. After this, we will focus on some classic image processing both in spatial and frequency domains, understanding what that means. Finally, we will see how particle analysis can be done in ImageJ.

Read Advanced Image Processing with ImageJ in full

Advanced Hadoop MapReduce Administration

by Srinath Perera Thilina Gunarathne | April 2013 | Cookbooks Open Source

In this article by Srinath Perera and Thilina Gunarathne, authors of Hadoop MapReduce Cookbook, we will cover:

  • Tuning Hadoop configurations for cluster deployments

  • Running benchmarks to verify the Hadoop installation

  • Reusing Java VMs to improve the performance

  • Fault tolerance and speculative execution

  • Debug scripts – analyzing task failures

  • Setting failure percentages and skipping bad records

  • Shared-user Hadoop clusters – using fair and other schedulers

  • Hadoop security – integrating with Kerberos

  • Using the Hadoop Tool interface

Read Advanced Hadoop MapReduce Administration in full

Advanced Effects using Blender Particle System: A Sequel

by | August 2010 | Open Source Web Graphics & Video

In the previous article by Reynante Martinez, we saw the disintegration effect in Blender's Particle System. In this article we will tackle some more features of Blender's particle system which are as follows:

  • Multiple particle systems
  • Boids
Read Advanced Effects using Blender Particle System: A Sequel in full

Advanced Effects using Blender Particle System

by Reynante Martinez | August 2010 | Open Source Web Graphics & Video

In the previous articles, Getting Started with Blender’s Particle System and Getting Started with Blender’s Particle System- A Sequel, by Reynante Martinez, we discussed about the general usage and concepts behind Blender's Particle System and found some cool ways to extend it further. We also discussed several types of the particle system as well as some practical results that can be derived from it like: dust, smoke, fire/flame, bubbles, rock slide animation, and hair/fur/grass.

This time around and as I promised in the previous articles, I'll tackle more advanced usages and features of Blender's particle system which are as follows:

  • Disintegration effect
  • Multiple particle systems
  • Boids
Read Advanced Effects using Blender Particle System in full
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