In this week’s Computer Weekly, we look at the IT challenges facing retailers, as consumers turn increasingly to web and mobile shopping channels. Oracle president Mark Hurd talks about how the supplier intends to simplify IT infrastructures. And new government CIO Andy Nelson discusses how he plans to transform Whitehall IT. Read the issue now. 

The definition of a mobile payment is often open to interpretation and can differ from source to source.    Juniper Research has a simple definition of a mobile payment as “payment for goods or services with a mobile device such as a phone, Personal Digital Assistant (PDA), or other such device.” 

This white paper guides you through troubleshooting using some of SQL 2005's built-in features to diagnose issues with your database. 

This expert white paper establishes the ultimate IT security goal: the most reliable preventative and detective security system possible with the least amount of capital expenditure. From common sense solutions to revolutionary concepts, instructor James Michael Stewart challenges IT pros to explore his methods of saving money on company security. 

This webinar will share with you how to free yourselves from vendor lock-in by expensive proprietary storage hardware companies and how you can take advantage of the new wave of storage buying.  You now have an alternative choice through the use of open source software and commodity hardware. 

This white paper discusses eight must have Dell Compellent technologies that combine to create new levels of efficiency and flexibility while cutting cost now and in the future. 

<p>This expert e-book provides strategies to reliably measure the energy efficiency of your data center. Learn how your organization can apply metrics in a consistent way allowing for improved power consumption.</p> 

This expert e-guide outlines strategies for combining virtual server backup methods with traditional approaches for a more comprehensive VM backup system. Discover tips that will protect your virtual environment at no extra cost. 

Upgrading from VMware ESX and/or ESXi 3.x to vSphere 4 successfully involves careful planning. There are hardware, software and database requirements, as well as third-party software compatibility considerations. This transcript provides guidelines for planning a successful upgrade, and walks you through a proposed upgrade path step-by-step. 

Although hardware storage prices have come down, storage administration and software expenses still run about seven times the cost of storage hardware. 

Upgrading from VMware ESX and/or ESXi 3.x to vSphere 4 successfully involves careful planning. There are hardware, software and database requirements, as well as third-party software compatibility considerations. This webcast provides guidelines for planning a successful upgrade, and walks you through a proposed upgrade path step-by-step. 

Explore 3 approaches to building a cloud in this white paper. Discover why building an open cloud is the best strategy to unlock the full efficiency, agility, and cost benefits of cloud computing, and learn what the essential requirements of building an open cloud are. 

This paper discusses several key differences between closed and open source software vendor management, providing advice for managing your deployments and investments in open source technologies.