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Cloud Elements: The Difference between Public, Private and Hybrid Clouds

Private and Public Cloud or Hybrid? - Choosing the right cloud for your enterprise

A cloud computing strategy is essential when you are planning your move to cloud computing. It's easier to understand how options will work best for you when you take a look at a cloud computing diagram showing service and deployment models. Your cloud environment should be specifically tailored to your enterprise needs. Cloud Architects create virtualized cloud designs based on business strategies that support essential technical domains including storage, networking, and applications. Your enterprise can use a small or large subset of available services depending on your organization's needs.

Because cloud services are so flexible, you also have the opportunity to build your cloud operation incrementally. You can expand as your business grows. Cloud is used across many enterprises. Here are just a few examples:


Cloud computing in education provides accessibility of classroom educational materials, collaborative learning and convenient accessibility to wide ranges of students at a very low price. Ed Week points out that privacy is a concern and details the lack of systematic privacy.


Recently EHR has been mandated by the Federal Government. Electronic Health Care records must be maintained and they must follow rigid guidelines. Cloud computing in healthcare is available and is being used for this purpose by some of the largest health care providers in the US.

Big Business

A popular way for large companies to move to cloud is to acquire the technology by buying it from other companies. SAP is one of the most prominent of these providers. In 2015 they'll be purchasing Concur technologies for $8.3 billion. Concur is a top integrator of cloud travel management and expense solutions. Forbes reports the expectation that in the first quarter of 2015 there may be a significant increase in SAP's cloud run rate. It's believed that this will lead to an expansion in sales for SAP.

Choosing a Cloud Service Provider

There are many cloud service providers to choose from. Your business cloud can connect you anywhere. Cloud Solutions from Apptix offer clients cloud based communication, infrastructure and collaboration. For operations that must meet mandatory regulatory requirements, specialized compliance and security services enable you to protect your data and be compliant. Compliant messaging must also meet government and regulatory mandates.

Cloud service types - What are the different types of cloud services available?

Software as a service (SaaS)

From the complex to basic, cloud-based applications called software as a service (SaaS) run on offsite computers that are owned and operated by others. Users' computers connect to the Internet via a web browser to use the SaaS they've purchased. Popular desktop software such as MS Office 365 Cloud and Adobe Creative Cloud are examples, as is Epic Cloud for Health Solutions. The EHR market is expected to reach $9.3 billion by the end of 2015.

Cloud email is one SaaS option that makes connections easier. This is a software-as-a-service offering that is widely used. It gives you access to your email from just about anywhere when you're using a mobile device and may include robust security features. It can also be integrated with existing infrastructure and applications. Calendaring, scheduling, contact management and instant messaging may also be an integral part of your cloud email. You can also create a single point of access that integrates business applications, collaborative tools and communication, reducing traditional barriers to smooth integration.

Platform as a service (PaaS)

Platform as a service provides a cloud-based environment that includes all the tools necessary for developing web-based (cloud) applications. The cost and complexity of buying and managing the underlying hardware, software, provisioning and hosting is minimized with this service option.

When choosing PaaS it's important to know what's included for free, how long a lock-in there is, if your security requirements are met and who are good-fit customers in terms of size and functionality.

Infrastructure as a service (IaaS)

Infrastructure as a service provides companies with computing resources including servers, networking, storage, and data center space on a pay-per-use basis. The service provider owns the equipment and is responsible for its maintenance. The client pays for use rather than up front so startup costs can be minimized.

Deployment Models of Cloud Computing

Your cloud computing strategy will help you choose those benefits of the cloud that are essential to your business growth. Cisco enumerates four different deployment models for cloud computing:

1. Public cloud

Public clouds are owned and operated by companies that use them to offer rapid access to affordable computing resources to other organizations or individuals. When an enterprise makes use of a public cloud service, users don't need to purchase hardware, software or supporting infrastructure, which is owned and managed by providers.

Public cloud offers affordability, but lacks the security afforded by private and hybrid clouds.

2. Private cloud

private cloud is owned and operated by a single company that controls the way virtualized resources and automated services are customized and used by various business entities. A private cloud offers an enterprise the opportunity for a high degree of security as well as significant configuration control.

3. Hybrid cloud

hybrid cloud is implemented with both public cloud and private cloud functionality. It uses a private cloud foundation combined with the strategic use of public cloud services. Private cloud must be integrated with a company's IT resources and with the public cloud for optimal functionality. Most companies utilizing private clouds will eventually manage workloads across data centers, and across public and private clouds. The result is the creation of hybrid clouds.

Hybrid cloud can support robust security and can be optimally configured to handle secure and public operations at the lowest cost.

4. Community Cloud

In a community cloud model, more than one group with common and specific needs shares the cloud infrastructure. This can include environments such as a U.S. federal agency cloud with stringent security requirements, or a health and medical cloud with regulatory and policy requirements for data privacy. A community cloud supports collaborative efforts and the management of secure data.

With so many different types of clouds, which is right for you?

Gartner sees the integration of personal clouds and external private clouds as a mix required for best results. When an enterprise is planning and designing private and hybrid cloud services, they need to plan for a future that includes both integration and interoperability. Investigation of cloud based service models is key to selecting exactly the services you need.

How can cloud based assets benefit your business?

Consider the following cloud features. Which should you take advantage of in your initial move to cloud and which will you put off?

  • Cloud e-mail will help you to reliably and securely communicate from any mobile device.
  • Cloud computing provides you with an opportunity to focus on your enterprise functions.
  • Cloud based data lets you collect and examine large sets of data for better analytics while worrying less about backups and storage.
  • Cloud based information sharing means that all relevant parties can access the critical data they need 24/7, empowering them to collaborate on making the right decisions quickly.
  • Cloud networks enable immediate access to critical information by key stakeholders at all times.
Cloud networking can deploy, operate, and manage distributed enterprise networks. It automates and simplifies highly complex tasks. This enables enterprises to deploy locations in minutes and operate their distributed networks with services delivered via a cloud infrastructure, providing centralized control and network visibility.
  • Mobile cloud gives you the flexibility to access your data via a mobile device from anywhere in the world. Multiple users can access real time data anytime. It's easy to access multiple platforms and data through cloud applications.


Cloud computing and services offer the most effective way to use and manage information assets. They provide the ability to use and share information with the efficiency required of today's enterprises while keeping your IT operations technologically current. The key question to be asked is how to best incorporate cloud services into your business rules and throughout your operations. Apptix Consulting Services can help you answer that question, working with you to craft the cloud-based solution that fulfills your business's unique needs.

Posted: 12/18/2014 10:37:44 AM

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