Why Deployment Models Matter

Blog Post created by ThomasConnery Employee on May 14, 2015

Originally blogged in 2013

When organizations research application services with the possibility of upgrading or migrating their current IT service, I’d like to think that they ask at least one universal question: Do we go with an On Demand or SaaS offering, Hosted Solution, or On Premise deployment model?

CA PPM is one solution that can be consumed and configured in whatever way best suits your organization’s needs. Previously, I wrote a blog post that discussed CA’s Managed Service offering, now called Application Management Services (AMS). The article talked about why it may suit some organizations to look to the cloud or to some other means outside their data center for an application service and the advantage in doing so.  As a continuation to that post, I felt it was time to explore hosting as a service and how it compares to other well-known deployment models.

The easiest way to describe hosting is to say it is nearly identical to an on premise service except that a third party handles all of the hardware, networking, monitoring, disaster recovery, and other infrastructure assets that are required to deliver the service. Hosting is very configurable to customizations and integrations, and puts the customer in control of their environment, similar to how it would be if it were on premise. You control software patching, upgrades, and decision making. Service Level Agreements are used to manage expectations and planned outages are scheduled with the infrastructure provider when needed.

If you are currently consuming or planning to purchase a specific IT service, you should know all of the possibilities for how that service can be delivered and how those methods might suit your needs. Specifically, you should have a good idea as to the number of end users that will be required to access the service, if any integration will be required, and any value-add component or competency that your organization might need. In most cases, a sales or pre-sales consultant can help you in understanding and estimating your overall needs. In my experience, you are either one of two roles in your organization, a decision maker or an influencer.  Since every one of us has the opportunity to consistently make things better within our team and organization, the onus is on you to understand service delivery methods and their benefits before either making or influencing a decision.

The chart and comparison shown below, provides some insight into why you would select one deployment model over another and lists several attributes and how they compare in each scenario. Deployment models do indeed matter- so do your homework, know your organization’s needs and challenges, then consult with your sales professional about service delivery methods before making or influencing your next big decision.


*Please note that this blog was originally posted in 2013 and the above chart may not be fully accurate today.