A Guide to the “Everything-as-a-Service" Model

A Guide to the “Everything-as-a-Service" Model

Organizations use XaaS (Everything-as-a-Service), a cloud computing service to cut costs and simplify IT deployments. There are many different types of XaaS models such as SaaS, PaaS, IaaS, DaaSFaaS, DBaaS, and WaaSThe following is a simplified explanation of these prominent types and their benefits.   


SaaS (Software as a Service) is software that is available via a third-party over the internet. In a SaaS model, the consumer does not manage or control the underlying cloud infrastructure such as networks, servers, operating systems, storage, and individual application capabilities. Instead, SaaS gives the user access over the internet rather than an actual installation. Examples of SaaS include CRM, email, virtual desktop, communication, and games. The benefits of using SaaS include - lower costs, faster scalability, and is easier to perform proof of concepts.  


PaaS (Platform as a Service) is hardware and software made available over the internet. Cloud providers such as AWS, Oracle, Google, Microsoft, and Salesforce have a computing platform that includes an operating system, programming language execution environment, database, and web server. Using the PaaS model, organizations can use execution runtime, databases, web servers, and development tools in a simple manner.  


IaaS (Infrastructure as a Service) are cloud-based services for network and virtualization on a pay-as-you-use basis for storage. This model allows you to rent IT infrastructure for your organization without worrying about upfront or flat fees. Examples of IaaS are virtual machines, servers, storage, load balancers, and networks. AWS, Microsoft, Google, HP, Nutanix, IBM Redhat are some IaaS providers.  


DaaS (Desktop as a Service) is a cloud computing service where third parties host the backend of a VDI (virtual desktop infrastructure) deployment in a similar way as SaaS. DaaS aids organizations in alleviating the cost, time, and potential legal issues. For example, if an employee loses their laptop on the train, there is no need to worry because all of the data is stored on a different desktop located elsewhere. Some examples of applications using the DaaS model include Amazon, Nutanix, VMWare, Desktrone, and Citrix.  


FaaS (Functions as a Service) is even simpler than PaaS! The simplicity is actually so high that its called a serverless architecture. Using a FaaS model means that the user can write a function and not have to ponder about deployment, server resources, and scalability because that is taken care of by FaaS providers such as AWS Lambda and Google Cloud Functions. It is also auto-scalable meaning that billing is done based on real consumption, not on resources that they have declared as necessary, which saves your organization money. There is one drawback however to using a FaaS model as there are even fewer supported technologies than with PaaS.  


DBaaS (Database as a Service) is a model in which providers host databases that provide backups, clustering, and high availability. Users are able to access these databases in some virtual format without the need to set up physical hardware, install software, or configure it for performance. The cloud providers such as Amazon Aurora, Amazon Dynamic DB, mLab, IBM Cloudant, and MongoDB Atlas do everything from backups to making sure the database is available and secure at all times.  


Waas (Workspace as a Service) is a virtual desktop that gives employees access to office applications and data from anywhere in the world no matter what device they are using (desktop computer, laptop, tablet, and smartphone). This model allows users to take care of any office-related tasks such as Office 365 for example, seamlessly. Using WaaS is effortless. The user simply logs into the WaaS provider such as CloudJumper and Cisco, from their device of choice and can view a virtual desktop environment that looks and works like their computer in the office.  

It can be difficult deciding which type of model is best for your business. Brite Systems has extensive knowledge leveraged to assist our clients implementing XaaS models. Connect with our team and receive XaaS consultation today 

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