What exactly is the cloud? Cloud Computing Type Subdivision

Cloud computing is now rage, as Ben Pring, a senior analyst at Gartner Consulting, said: "Cloud computing has become a hot topic." But the problem is that everyone seems to have a different definition.

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As we take into account the actual needs of it, the concept of cloud computing is becoming clearer: one way to improve the performance and capabilities of idle resources without the need to increase infrastructure input, new hire training, or the latest software licensing. Cloud computing encompasses any service model that provides real-time subscription (subscription-based) or Pay-as-you-go (pay-per-use) services over the web, extending the existing capabilities of the IT industry.

Cloud computing is still in its infancy, with a large and small assortment of vendors developing different cloud computing services, from mature applications to storage services to spam filtering. Yes, the utility-mode infrastructure vendor is a provider of multiple services, such as SaaS (software as a service), such as Salesforce.com. Today, to a large extent, the IT industry has to accept cloud services individually, but cloud computing developers and integrators have begun to take shape.

Based on the views of different vendors, analysts and it users on cloud computing, we subdivide the cloud into the following:

1. Software as a service (SaaS)

This type of cloud computing uses the Multitenant architecture to extend a single application to thousands of users through a Web browser. From the user's point of view, this means that they do not have to invest in the server or software license authorization, from a vendor point of view, compared with the conventional software service model, the cost of maintaining a software application is relatively low. So far Salesforce.com is the most well-known provider of enterprise application software, but software as a service (SaaS) is widely used in human resource management software, as well as ERP software vendors such as workday. Who can predict a sudden leap in software that is a service (SaaS) desktop system from Google and Oho office?

2. Utility calculation (Utility computing)

The idea is not new, but this type of cloud computing has Amazon.com, and the involvement of Sun, IBM, and other virtual machine vendors engaged in storage services and it on-demand has been revitalized. In the early days, utilities were supplemented by utility calculations and were not applied to mission-critical requirements. But today, utility computing has gradually begun to occupy a place in the data center. Some vendors provide users with solutions to help IT organizations create data centers from commercial servers, such as the 3Tera applogic and cohesive flexible technologies elastic server provide this on-demand service. Liquid Computing Company's LIQUIDQ also has a similar service that helps businesses integrate memory, OS, storage and computing capacity into a virtual pool of resources through the network.

3. Cloud Computing Network Services

Network services are closely related to software as a service (SaaS), and network service providers provide APIs to help developers expand functionality over the network, rather than just providing sophisticated applications. Their range of services ranges from providing decentralized business services (such as strike Iron and Xignite) to a full range of API services such as Google Maps, ADP payroll processing, U.S. Postal services, Bloomberg, and regular credit card processing services.

4. Platform as service (Platform as a services)

Platform as a service (Platform as a service) is a variant of software that serves as a service (SaaS), a form of cloud computing that provides development environments as services. You can create your own application to run on the vendor's infrastructure and then pass the network from the vendor's server to the user. That's what Lego (Vegging-out) does. But these services are subject to vendor design and capacity constraints, so users are not free enough. Represents the company including Salesforce.com's force.com and Coghead.

5. Management Service Provider (MSP)

Management services are one of the oldest forms of cloud computing, and management services are an application that is intended for it vendors rather than end users, such as virus scanning services for e-mail or application software monitoring services. The management security services provided by SecureWorks, IBM and Verizon are classified as such, and Postini anti-spam services are currently being acquired by Google. Other products include desktop system management services, such as CenterBeam and Everdream offerings.

6. Service Business Platform

The service business platform is a hybrid of software as a service (SaaS) and Management service provider (MSP), which provides a service collector that combines with the user. Most commonly used in trade, such as the cost management system allows users to order from the common platform within the user's specifications to the required services and prices in line with the requested tourism products or secretarial services, like an automation service, well-known companies including Rearden Commerce and Ariba.

7. Network integration

The integration of cloud infrastructure services is still in its infancy. Software service provider Opsource is currently launching Opsource services bus, using cloud integration technologies that have been boomi. Software, the service provider Workday, recently acquired another company in the field, Capeclear, the ESB (Enterprise service Bus) provider, which is primarily engaged in B-to-b business model services. Grand-Company is also committed to providing users with integrated solutions that have been acquired by Google recently.

Today, cloud computing is not widely used, and a more precise description of cloud computing may be "sky computing." At the same time, with the gradual popularization of virtualization and SOA in the enterprise, this idea began to be recognized. The extensible infrastructure should eventually be the most cloud-capable node for each enterprise. This is a long-term trend, but it is undeniable that cloud computing will be one of the difficulties in the industry's debate for a long time.