Cloud Computing: Application Virtualization with Parallels RAS

As the name suggests, application virtualization is the process of virtualizing applications. In a traditional environment, applications run over an existing operating system and uses its underlying hardware resources. Application virtualization, on the other hand, encapsulates the application. Doing this separates the application from the underlying operating system, giving access to the application without having to install it over a native device with a particular operating system.

Needless to state, application virtualization allows cross-platform operation, application portability, and the ability to run multiple application instances with ease.

Cloud Computing Service Models

The three cloud computing service models and their differences are illustrated in the table below:

Infrastructure as a Service (IaaS) Platform as a Service (PaaS) Software as a Service (SaaS)
Service Offering Networking, storage, and virtualization Hardware and software tools Software that is made available via a third-party
Delivery Cloud-based, pay-as-you-go service Over the internet Over the internet
Characteristics – Resources are available as a service

– Highly scalable services that are dynamic and flexible

– Multiple users can access a single piece of hardware

– Organizations retain control of the infrastructure

– Cost depends on consumption

– Built on virtualization, and resources can be scaled up
or down as per business needs

– Provides services to assist the development of
applications, their testing, and deployment

– Numerous users can access the same development

– Integrates both databases and web services

– Managed centrally

– Hosted over a remote server

– Hardware and software updates are done by the provider

Limitations – Apps, data, middleware, and OS is in control of the
customer, but this can still lead to an insider threat or
system vulnerabilities being introduced into the system

– IaaS solutions require minor enhancements to run legacy
systems in the cloud

– Hardware resources were dynamically allocated across
users, users need a vendor to ensure multi-tenant security

– Effectively managing the infrastructure requires
additional resources and training.

– Since data resides in third-party, vendor controlled
servers, data security can prove to be a limitation.

– Organizations may suffer from vendor lock-in

– The integration between data stored in an onsite data
center and an off-premise cloud solution may pose a

– PaaS solutions might not always be optimized for
languages and frameworks of your choice, leading to
potential runtime issues.

– PaaS solutions tend to limit the operational capabilities
for end-users.

– Limited integration capabilities with existing apps and

– Organizations may suffer from vendor lock-in

– Lack of integration support

– Continuous transfer of large volumes of sensitive
business information may compromise data security

– Offer minimal customization opportunities by instead
following a one-size-fits-all ideology.

Advantages – The most flexible and scalable computing model

– Easy deployment of networking, servers, storage, and
processing power

– Resources can be purchased as needed, and hardware can be
purchased based on consumption

– Clients retain control of the infrastructure

– Scalable and highly available

– Simple, cost-effective solution

– Easy migration to the hybrid model

– Automation of business policies is easier

– Customization of apps is easy for developers

– The amount of coding needed is significantly reduced

– Cost-effective solution

– Reduces money and time spent on installing and upgrading

– Frees up the time spent by technical staff to manage
tedious software related tasks

Usability Best suited for:

– Startups and small companies to avoid spending time and
money on hardware and software

– Large companies to retain control over infrastructure and

– Companies with a potential for rapid growth

Best suited for:

– Streamlining workflows when multiple developers are
working on the same project

– Where speed and flexibility is a concern

– For rapid development and deployment of apps

Best suited for:

– Small companies or startups

– Short-term projects

– Applications that are not used often

– Applications requiring web and mobile access

Examples Microsoft Azure, Amazon Web Services (AWS), Cisco
Metacloud, Google Compute Engine (GCE)
AWS Elastic Beanstalk, Windows Azure, Google App Engine,
Google Workspace, Cisco WebEx, Dropbox, Salesforce

Delivering Application Virtualization through Cloud Computing

Application virtualization is the process of allowing applications to run on end-user devices as if they were locally installed. Applications might be delivered as a combination of application and associated infrastructure as a single subscription service, or as a service that provides both management and infrastructure. The former one fits into the Software-as-a-Service (SaaS) category while the latter one is referred to as a managed services provider.

Delivering application virtualization through the cloud computing service model of SaaS usually pertains to web applications because of its independence with underlying OSes. SaaS revolutionizes how applications are deployed, thus avoiding the challenges associated with application conflicts. Central management of software and user access allows applications to be deployed and updated effectively and quickly.

Application virtualization has the following features:

The different approaches used to virtualize applications in the SaaS model are;

The different methods of application virtualization are:

About Parallels RAS 

Efficiently deliver Windows applications hosted on hypervisors and Windows remote desktop servers to any device, anywhere. By hosting applications in the private cloud, businesses benefit from reduced administration and help desk support time and can easily control access to applications.  

Parallels RAS has extensive experience supporting the education segment. Educational institutions rely on Parallels RAS to deliver Microsoft Office applications to Apple or Chrome OS, increasing the productivity of staff and students without increasing licensing costs. Parallels RAS has helped many institutions and organizations get the maximum possible benefit from the private cloud. Learn More. 

Download your free 30-day trial of Parallels RAS today!


Microsoft Azure | Azure Services 

Wikipedia | 

TechTarget | 

Salesforce | 

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