The latter gives you access to support and the ability to upgrade the license as long as you have SnS. You buy the product license, which you then own, with Support and Subscription (SnS). Traditionally VMware has been a software vendor that provides COTS software. That value also needs to be made when making a comparison. There is a value associated to the operational benefits (see again the table above) that you gain by moving to a SaaS solution. However that comparison does not include the additional costs that it takes to host and manage COTS application. The contract is most of the time an agreement of 1 or 3 years.Īnd this is the point where people start to make the comparison between the license costs of a COTS solution and the costs involved consuming a SaaS service. In case of Enterprise consumers there typically also is a contract involved where the consumer commits to a minimum amount of consumption or spend with the SaaS provider. The service is metered and you pay for your usage. Which is typically the model that is applied to SaaS offering for the services that are consumed. And I’m stating “perceived” here as there are many factors when it comes down to comparing hosting and managing a COTS solution yourself versus a SaaS solution.įor most Enterprises it comes back the convenience of payment by subscription. The primary reason most enterprises are moving to a SaaS solution due to the fact that it is perceived on being financially more attractive. Which makes it easier for the consumer of the platform. A lot of operational responsibility moves to the SaaS provider. Explaining the operation differences when it comes to COTS and SaaS solutions.Īs you can see there are a lot of benefits from an operational perspective when moving to a SaaS solution. To illustrate this, please have a look at the following table. Whereas SaaS is something you consume and the SaaS provider is responsible for a lot of stuff. As typically COTS software is software that you need to install, configure and manage yourself. Operational impact of COTS vs SaaSįrom an operational perspective there is are of course differences between COTS and SaaS. Giving you the insights what to choose from when making the right decisions for your situation. This article will explain the differences between the two. However, due to technical debt, regulations, compliance requirements or other reasons there is still a need to sometimes not go for the option of SaaS.Īs with everything in IT, SaaS has become one of the option, but not the only option. Great examples of that would be, Office 365, Adobe, etc. They want to consume the software, but not host and manage it. Which is kind of a natural movement as enterprises are moving away from managing and maintaining everything themselves. The preference of Enterprise customers is to go SaaS first before considering a COTS solution. Over the last decade there has been an increase in consuming SaaS. Consumer has the ability to configure the software in accordance to the software capabilities. The provider is responsible for managing the software stack. The consumer pays for the usage of the service. Software-as-a-Service (SaaS) : Software that is provided to the consumer as a (shared) service. Consumer is responsible for the management and configuration of the software Given the consumer the right to install and operate the software. This blog provides details the difference so that you can make a decision which of the 2 delivery models is best suited for your situation.īefore diving into the details let’s first define what the two term actually mean:Ĭustom Off-The-Shelf (COTS) : Software that is build and maintained by a 3rd party vendor. This is article hopefully will give an architectural insight on all the different components that differentiate commercial off-the-shelf (COTS) from SaaS or vice versa. This way architects can make the right decision when it comes to choosing the right software consumption model. It outlines the benefits and defines the responsibilities when consuming either of these software delivery methods. This article provides an insight how between the differences of Custom Of The Shelf (COTS) software and subscription Software-as-a-Service (SaaS).
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