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Linux Thin Client : Considering the Network

by David Richards | July 2008 | Architecture & Analysis Linux Servers Networking & Telephony Open Source

Much information already exists concerning methods for deploying networks and hardware. In this article by David Richards, we shall try to clarify differences between using a network with personal computers and thin clients with the help of anecdotes. Certain designs have also proven to be very stable and provide the best possible solution.

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Installing dotProject

by Lee Jordan | July 2008 | MySQL Open Source PHP

If you already have dotProject installed, you probably don't even need to skim this article, unless something has gone horribly wrong. In this article by Lee Jordan, we will cover the key information you need to know to successfully install dotProject, what to do if things are not working right, and how to avoid common pitfalls and hours of frustration.

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Data Profiling with IBM Information Analyzer

by Djoni Darmawikarta | July 2008 | Architecture & Analysis

Data profiling is essentially data mining, but for a different purpose. You mine data to understand, to gain better knowledge about the data. While the more common use of data mining is for gaining the data insights for business purpose (e.g. customer buying characteristics), data profiling is for technical purpose. To be more precise, you do data profiling to gather and analyze the technical metadata characteristics of the data. Information Analyzer, data profiling software from IBM, helps you gain insight into such technical metadata characteristics as, for example, column data type and size (length).

This article is based on a case where a database table grew its size unexpectedly and its initial disk space allocation got strained. Looking at the growth pattern of the table, such as the number of new records (which was not that huge), didn’t give us any clue about the cause of the problem. In this article, Djoni Darmawikarta will step through the Information Analyzer process, run one of its functions called Column Analysis on a simple table (a scaled-down version of the real table), and show how the profiling output help solve the problem.

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Using Lists and Tables with MediaWiki

by Mizanur Rahman | July 2008 | MySQL Open Source PHP

MediaWiki is a special software which is used to design Wikis. For any website, formatting is the key to creative and sophisticated designs. In this article by Mizanur Rahman, we will use advanced formatting components like lists and tables in MediaWiki to add content to a sample website.

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Module Development in Joomla

by Joseph L. LeBlanc | July 2008 | Joomla! MySQL Content Management Open Source PHP

Modules in Joomla can always help us to add special functionality or special features to our website. In this article by Joseph LeBlanc, we will see how to create and configure a basic module and centralize data access and output using helper classes. We will also have a look at how to select different display options using layouts.

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Custom Types in Documentum

by Pawan Kumar | July 2008 | Architecture & Analysis Content Management

In this article by Pawan Kumar, we look at the Custom Types in Documentum. We will see how to manage the custom types by looking at how to create a custom type and modify the custom type. We have also introduced the concept of data dictionary, which stores additional information about custom types.

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CherryPy : A Photoblog Application

by Sylvain Hellegouarch | June 2008 | Content Management Open Source

In this article by Sylvain Hellegouarch, we are going to explain how to develop a photoblog application. In the first half of this article, we will review the goals and features of this application from a high-level perspective without going into too much detail. In the second half, we will define the entities that our application will manipulate and introduce the concept of object-relational mappers, which aim at reducing the impedance mismatch between relational database and object-oriented software design. We will briefly present the most common Python ORMs and then develop our application data access layer based on the Dejavu ORM.

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Managing Content in Alfresco

by Munwar Shariff | June 2008 | Content Management Java

Content could be of any type. Using the Alfresco web client application, you can add and modify content and its properties. You can categorize content, lock content for safe editing, and you can maintain several versions of the content. You can delete content and you can recover the deleted content as well.

In this article by Munwar Shariff, we introduce you to the basic features of creating and managing content in Alfresco. Using Alfresco, you can manage any type of documents such as HTML, text, XML, Microsoft Office documents, Adobe PDF, Flash, scanned images, media, and video files.

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Developing a Simple Workflow within SugarCRM

by Dr Mark Alexander Bain | June 2008 | CRM MySQL Open Source PHP

Workflow is about getting the right work to the right people at the right time, repeatedly—and knowing you have done so. Workflow is human-centric. First and foremost, workflow is a human activity that is made by and for those who use it: workflow is something that can easily be handled and understood by human beings.
UK Enterprise Workflow National e-Government Project—Workflow from a Business Perspective

Well, that sounds good, but the problems start to occur when you ask people to consider workflow in their organization, and there are usually a few main issues to deal with:

  • You'll find that people are normally experts in their own fields—there are often very few people who have an overview of the whole process that you're trying to map.
  • Sections of a large organization will often have different ways of carrying out the same overall process.
  • People don't really like to be told how to do their jobs—they especially don't like to have any extra processes imposed on them for now obvious reason—well, would you?
  • Talk of 'improved utilization of resources', 'improved performance monitoring', and such like can soon alienate the staff who are going to be using the system. They'll soon start using terms such as 'Big Brother'.

How you are able to deal with these will depend on your organization and the people that are available to you. At least once you've read this article by Dr. Mark Alexander Bain, you'll know that, once you've overcome those problems, the workflow itself will be easy.

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Troubleshooting Lotus Notes/Domino 7 applications

by Dick McCarrick,Stephen Cooke,Timothy Speed,Raphael Savir | June 2008 | Architecture & Analysis Web Development

Troubleshooting the problems are always a part of any system. In this article by Dick McCarrick, Stephen Cooke, Timothy Speed, and Raphael Savir, we will see how to identify and correct problems in our Lotus Notes/Domino 7 applications. This article includes troubleshooting issues that affect performance and also talks about Domino Domain Monitoring (DDM) and what it can do in terms of troubleshooting applications. A brief overview of Agent Profiler is given at the end of this article.

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Modeling Furniture in Blender

by Allan Brito | June 2008 | Open Source Web Graphics & Video

As furniture is a key element, every item of furniture that we add to the scene increases the level of detail, and the sense of realism. We can classify furniture into two : internal and external furniture. With the first type, we have all the objects that populate our interior scenes such as sofas, beds, and chairs. The second type refers to items of urban furniture such as cars, fountains, and fences. This kind of modeling deals with smaller scales, and because of this, sometimes, we have to work at a more detailed level than we are used to. This can cause the modeling process to take a bit longer than usual, but only if we need to create a good level of detail for our models. In this type of modeling, we will use the concept of level of detail again. Another interesting thing about furniture is that we can keep the models that we create to build a good library. In this article by Allan Brito,we will learn how to add previously created furniture into new projects, decreasing the time needed to fill up the scene with furniture, with a good 3D models library. We even can download or buy models on the Internet. The only thing that we will have to do in this case is import the model into our scene.

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Development with Pluggable Authentication Modules (PAM)

by Kenneth Geisshirt | June 2008 | Linux Servers Networking & Telephony

The primary focus of Pluggable Authentication Module (PAM) is to authenticate your users. PAM lets you set up the environment that the users will work in. And when the users log out, PAM tears down the working environment in a controlled way. PAM and PAM-aware applications reduce the complexity of authentication. Application programmers can take advantage of PAM, rather than developing a complete set of authentication functions. In this article by Kenneth Geisshirt, we will see how an application uses PAM for authentication and how to develop our own PAM modules.

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ColdFusion 8-Enhancements You May Have Missed

by Charlie Griefer | June 2008 | AJAX Web Development

ColdFusion 8 is arguably one of the most significant releases of the product since ColdFusion MX (6.0) first graced our servers in 2002. The release brings with it long awaited image manipulation tags and functions. Built-in AJAX integration makes it easier to create "Web 2.0" applications. Compared to previous releases, it's also wicked fast. Given the significance of these new features, it may be easy to overlook some of the enhancements that have found their way into ColdFusion 8. In this article by Charlie Griefer, we will look into the some of the enhancements to existing features and functionality that you may have missed.

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Data Processing using Derived Column and Aggregate Data Transformations

by Jayaram Krishnaswamy | June 2008 | .NET Microsoft

SQL Server Integration Services, using its designer interface, or BIDS, has made it possible to process data using many of the data flow related items in its Toolbox without writing a line of code. This is a very attractive option for someone who is a beginner with some knowledge of databases, and for end users who may want to look up some detail buried in the data. This tutorial by Dr. Jayaram Krishnaswamy shows how the designed package extracts data from an SQL Server 2005 and processes it using several of its built-in transformations.

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Using Asterisk as a PSTN Gateway for OpenSER

by Flavio E. Goncalves | June 2008 | Linux Servers Networking & Telephony Open Source

PSTN or Public Switched Telephone Network is the collection of all the telephone networks, which are interconnected in the world. If we want to be able to route calls from and to the PSTN using OpenSER, we need to be connected to a PSTN. To send calls to the PSTN, we need a device called PSTN gateway. There are several manufacturers such as Cisco, Nortel, and others who manufacture this kind of equipment. You can also use an Asterisk PBX box for this task. Asterisk makes an affordable PSTN gateway that is very competitive with the big players mentioned above. In this article by Flavio E. Goncalves, we will see how to use asterisk as a PSTN gateway for OpenSER.

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