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01 December 2014
01 December 2014

Cloud Identities versus Federated Identities in Office 365

Identities, the 'accounts' by which Cloud and Web users identify themselves, are tricky to manage, and tiresome for the users. Cloud services such as Office 365 have their main use in large organisations and so there have to be easy ways for system administrators to maintain them. Microsoft provide three alternative strategies; Cloud identities, Synced identities and federated identities. What is the differences between them, and which should you choose? … Read more
19 November 2014
19 November 2014

Data as a Service: The Next "As a Service" Wave?

There was a time that data seemed part of the application that maintained and used it. Now, there is increasing demand to deliver data through platform-agnostic open-standard APIs so it can be consumed in a variety of ways, whether refined, aggregated, or combined with additional information. Are we heading towards a shared understanding of applications as data-providers, feeding other services such as BI, or even in the right circumstances, publishing it?… Read more
23 September 2014
23 September 2014

Deleting Files in the Cloud

The public perception is that, when something is deleted, it no longer exists. IT in general prefers the fuzzier idea of the trashcan, where the deleted compromising documents can blow around a digital landfill site for years. The Cloud takes this further, and so the data you serve up to the cloud can be stored out there indefinitely, no matter how hard to try to delete it. Rob Sheldon investigates, and finds the cloud a worryingly public place.… Read more
27 August 2014
27 August 2014

The Community Cloud

The 'Community Cloud' sounds, on first impression, like marketing-speak for some untried novelty, but in fact it is already around, and working well for governments and healthcare in particular. Bob Sheldon investigates, and is encouraged to find groups of organisations who have cooperated to create secure and resilient cloud-based services.… Read more
25 January 2012
25 January 2012

Dial in the scale: Amazon’s new DynamoDB

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Dynamo is a fast and scalable proprietary key-value structured storage system that gives the features of both simple databases and distributed hash tables (DHTs), running on SSD storage to provide other Amazon services such as S3. It it not ACID-compliant ore relational but is great for doing analysis on large amounts of simple data… Read more
13 January 2012
13 January 2012

Comparing IAAS and PAAS: A Developer’s Perspective

In the Cloud, services come in the form of Software (SaaS), Infrastructure (IaaS) and platform (PaaS). when moving a service to the cloud, IaaS and PaaS provide two different service models and provisioning steps of solutions. A PaaS providers has more responsibility for your solution than an IAAS provider. wherase an IaaS solutionmay offer more flexibility at lower level. Wely Lau explains.… Read more