A cube in the context of Business Intelligence is a multidimensional representation of business facts that can be accessed quickly to provide specific information. (This can be accomplished by properly written queries in a relational database, but the overhead involved in processing the query, which may involve a large number of 'joins', is simply not efficient). While a relational model is more suited to OLTP, a different model is necessary for OLAP. Whereas highly normalized tables are a norm for OLTP, the model for OLAP does not require normalization. The SQL Server Analysis Services that supersedes the earlier versions is specifically meant for analyzing data in the archives or in OLTP databases to be retrieved and burnished to provide the 'Intelligence' by mining for facts hidden in the data. This two part article by Dr. Jayaram Krishnaswamy describes how a Cube is designed using Visual Studio 2008 and how it may be browsed on the Analysis Server. In Part 1, the necessary items for creating the Cube, namely the Data Source and Data Source Views are described.Read Creating an Analysis Services Cube with Visual Studio 2008 - Part 1 in full
One of the most interesting extensions to the standard mail setup is that of virtualization. In this article by Kyle Wheeler, let's see the many reasons for wanting to virtualize email services, from hosting multiple domains with different users to simply extending the ability to apply policies to different sets of email. There are three basic techniques that are used with a standard qmail system for attaining different forms of virtualization: qmail's control/virtualdomains file, user-definable address extensions, and running multiple qmail instances on the same system.Read Qmail Quickstarter: Virtualization in full
Blender is an open source, cross platform suite of tools for 3D creation, capable of modeling, rendering, and animating 3D environments. Since Blender is completely free, everyone can download and use it immediately in commercial projects. It's not a shareware with limited tools, or time constraints; you can use it freely. In the past few years, the Blender user base has grown significantly. One of the positive aspects of Blender is its size—it is only 10 MB and we can even run it directly from a portable drive. Another great aspect of Blender is that we can use various Operating Systems such as Linux, Windows, and Mac OS X, leaving us the choice of which one to use.
Packt spokesperson Meeba Abraham approached Allan Brito at the heart of this movement to understand his take on the future of Blender.Read Blender 3D: Interview with Allan Brito in full
The look and feel of any website is a major factor that drives traffic towards the site. A theme is responsible to give a consistent look and feel to a website. In this article by Theodore S Boomer, we will see how to select and delete themes for e107 websites. We will also have a look at the theme layout and build an understanding of it.Read Themes in e107 in full
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.Read Linux Thin Client : Considering the Network in full