Kate's Comment

Thoughts on British ICT, energy & environment, cloud computing and security from Memset's MD

What Is Cloud Computing?

Here I provide a less technical description of cloud computing, which can be regarded as essentially the provision of computing resources and/or software as a utility, in the same way that your business uses familiar utilities, such as electricity, water, gas etc. Cloud computing enables you to pay for computing resources as you need them. These services are provided over the internet, on a consumption-based pay-as-you-use model, with short-term contracts and without up-front expenditure.


A couple of months ago HP started rumors that the G-Cloud had been canned, but that is most certainly not the case. I have spoken to a number of government officials and can confirm that it is going ahead. But what will it actually be, and is that what it should be? I was technical co-lead on phase two of…

Why Apple Should Make iCloud Open

The recent launch of Apple’s iCloud service has done much to bring mainstream attention and acceptance to the concept of cloud storage and syncing. But unless they adapt an open cloud standard they are facing an uphill struggle to attract business users. Here’s why.

OSCON: Government & Cloud, and cloud panel debate

I was recently asked to present at the OSCON conference in San Francisco in July 2010. I presented on the role of cloud computing in government IT and joined a panel to discuss the future of cloud computing.

IaaS vs. PaaS vs. SaaS definition

One of the areas on which we reached clear agreement in the G-Cloud and App Store phase 2 was the definition the layers of the stack, infrastructure, platform and software, and their corresponding scalable, standardised counterparts: infrastructure as a service (IaaS), platform as a service (PaaS) and software as a service (SaaS). Pleasingly, our delinations were very similar to prior work from two decades ago by IBM, except that ours incorporate virtualisation.

Definition of Cloud Computing, incorporating NIST and G-Cloud views

Following my involvement with the UK Cabinet Office’s G-Cloud and App Store programme I’m updating my definition of Cloud Computing, and also incorporating the NIST definition. My answer is “Cloud = Grid + (Utility * N)”, and here is how I arrived there…

BCS Data Centre Cost & Energy Simulator beta released

The British Computer Society’s Data Centre Specialist Group has released a beta version of their data centre cost and energy simulator to members of the specialist group. The simulator has come out of the Carbon Trust’s Low Carbon Collaboration initiative jointly funded by BCS and Romonet. Here are my first impressions from the preview a few weeks ago.

McKinsey report saying “Cloud costs more” is Wrong!

McKinsey issued a report today stating that outsourcing to the Cloud will actually cost more money! They are just, plain, wrong. This is why…

(Deprecated) The definition of cloud computing

This post has now been superseded by my updated

The power of blogging

Well, it has been over 3 months since I last posted, which is rather feeble! In my defense I have been insanely busy – winning various awards for service and innovation does rather take up one’s time *looks smug*. Seriously though, trying to write a sensible blog (OK, look, I did say “trying”!) is surprisingly time consuming, but I am…