Cloud migration strategies: Choosing the right time for PaaS adoption

Grazed from TheServerSide. Author: Jason Tee.

If your enterprise got picked for a makeover on a reality TV show, one of the first things the judges would probably do is ask why you haven’t moved to the cloud. Streamlining your ALM, ditching unnecessary infrastructure, and reducing maintenance costs can be so slimming. But the fact is that not every single app in your wardrobe is going to be a good fit for a SaaS or PaaS based solution. Let’s take a some cloud adoption strategies, while focussing on a few scenarios where keeping an app out of the cloud might be the wiser choice.

Migration versus total transformation

Before we dive in, we should probably point out that industry experts at Forrester say you shouldn’t move your existing apps to the cloud at all. Apparently, re-architecting isn’t enough to solve the problem. "If your traditional applications are an architectural mismatch with cloud platforms, it’s an expensive and costly route to try and rearchitect them for the cloud." Instead, "Cloud applications should be built from the ground up for cloud."…

Otherwise, you aren’t really capturing the full benefit of the cloud for features like scalability or service oriented architecture. What’s our take? Some apps do need to be radically redesigned before they are ready to launch in the cloud. But you don’t need to rebuild every single app in your portfolio as a cloud app. Sometimes, it’s just not worth the time and trouble…

Read more from the source @ http://www.theserverside.com/feature/Cloud-adoption-strategies-Choosing-the-right-time-for-PaaS-adoption