How SaaS is in cloud computing trends

> First let's take a quick look at Cloud computing. Cloud computing currently lacks a clear, unified definition, because it has developed in recent years, is not yet mature stage, and with the continuous development of cloud computing, its extension and content will continue to shift and replace. But from a variety of different angles, we can understand to some extent how cloud computing is going on.
in applications, cloud computing describes a scalable application that can be accessed over the Internet. Cloud based applications use large data centers and powerful servers to run network applications and network services. Any user can access a cloud computing application through the right Internet access device and a standard browser. As a result, cloud computing is a web-based service designed to allow users to pay only for the features they need, while eliminating the traditional software investment in hardware, software, and expertise. Cloud computing allows users to get their applications out of the complexity of technology and deployment.
From a platform perspective, cloud computing is a term used to describe the platform and the type of application. The cloud computing platform can dynamically provide, configure, reconfigure, and cancel the provisioning server as needed. Cloud computing also refers to applications that are expanded and accessible over the Internet. These cloud applications use large data centers and powerful servers to host Web applications and Web Service.
from the business model point of view, cloud computing should be understood as a new business model, its core is still the data center, the application of virtualization, SOA, WEB2.0 and so on a series of technologies to form a new distributed computing platform. and enterprises and individual users can get the computing power from the cloud computing platform through the high-speed Internet, thus avoiding a lot of hardware investment.
In short, cloud computing is not a simple product, nor a simple technology, but a new way of generating and acquiring computing power.
World Information (CCW) considers cloud computing as both a computing and storage platform that can be dynamically provided, configured, and canceled as needed, and an application type that can be accessed over the Internet. It includes at least three levels of cloud applications that provide application services, cloud platforms that support application services, and cloud centers that provide IT infrastructure. The
SaaS model means that users do not need to buy software, but instead rent web-based software to the provider to manage their business activities according to their actual needs. SaaS providers provide Internet access to customers while providingThe software's off-line operation and local data storage allow users to use their ordered software and services anytime and anywhere. Unlike a public calculation, it is not charged for resources consumed, but is based on the value of the application provided to subscribers. SaaS is a subset of cloud computing that provides cloud applications for application services, so it can be said that SaaS is cloud computing, while cloud computing is not just SaaS. So, cloud computing is not a substitute for SaaS, and the rise of cloud computing will drive the march of SaaS, with the cloud platform and Cloud center providing a platform for SaaS operations and more flexible hardware resources, while SaaS provides more applications and content to cloud computing.
June 25, 2009, 2009 SaaS, hosted by CCW Information (CCW), will be held in Nanjing at the third China Software Operations Service conference in China. In addition to delving into these issues, the Assembly will focus on how to make SaaS truly available and how companies can cope with the impact of the international crisis through SaaS transformation and upgrading.