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Today, I will introduce the differences between SaaS service model and traditional software service model. The content of the article is good. Now I would like to share it with you. Friends who feel in need can understand it. I hope it will be helpful to you. Let's read it along with the editor's ideas.

Characteristic Analysis of SaaS

SaaS can be said to be one of the hottest words in the software industry. SaaS is the abbreviation of Software-as-a-service and translated into Chinese is "software as a service". One of the earliest SaaS services can be traced back to online e-mail, especially the introduction of free e-mail, which greatly reduces the threshold for individuals and enterprises to use e-mail, but also reduces the corresponding costs, thus changing the way of communication between people and enterprises.

Since the development of SaaS service model, the variety and products have been very rich. SaaS services for individual users include: online document editing, table making, account management, document management, photo management, resource integration, calendar management, contact management and so on. Services for enterprise users include: CRM (customer relationship management), ERP (enterprise resource management), online storage management, online meetings, project management, HRM (human resource management), STS (sales management), EOA (coordinated office system), financial management, online advertising management, etc., as well as some application services for specific industries and fields.

Compared with the traditional software service model, SaaS service relies on software and Internet, and has different characteristics from both technical and business point of view, which is embodied in the following aspects:

Feature 1: the Internet characteristics of SaaS service model

On the one hand, SaaS services provide services for users through Internet browsers or WebServices/Web2.0 programs, which makes SaaS applications have typical Internet technology features; on the other hand, because SaaS greatly shortens the time and space distance between users and SaaS providers, the marketing and delivery of SaaS services are very different from traditional software.

For example, consider an Web-based email service, such as Microsoft? Hotmail? Wait. Although it's hard to first think of Hotmail as part of SaaS when you think about SaaS, Hotmail does meet the basic standards of all SaaS: vendors provide hosting services for all program logic and data, enabling end users to access data over the public Internet through a Web-based user interface. Therefore, SaaS applications must be Internet-based, and such network applications can be flexibly enabled and suspended, and can be used anytime, anywhere. Because of the access through the network, SaaS has higher requirements for the transmission quality of the network. Users operate data on the Internet, and many services have certain requirements for real-time, so the transmission capacity of SaaS to the network is higher than that of ordinary ISP.

For example, NetSuite, a well-known product in the SaaS software industry, provides online ERP, online CRM and other module products, which are all based on the network. This advantage is that you do not have to invest any hardware costs, nor do you need to hire professional system maintenance personnel. You can surf the Internet, have a browser, and can use the ERP,CRM system. Rapid implementation, convenient use and low price all depend on the Internet characteristics of SaaS products.

Feature 2: multiple leasing (Multi-tenancy) feature of SaaS service model

SaaS services are usually based on a standard software system to provide services to hundreds of different customers (also known as tenants). This requires SaaS services to support the isolation of data and configurations between different tenants, so as to ensure the security and privacy of each tenant's data, as well as users' personalized requirements such as interface, business logic, data structure and so on. Because SaaS supports multiple tenants at the same time, each tenant has many users, which poses a great challenge to the performance, stability and expansibility of the infrastructure platform that supports the software.

SaaS as an Internet-based software delivery model, the performance and operating cost of software after large-scale application is the core task of the architect.

Nowadays, mature SaaS software developers mostly adopt the one-to-many software delivery model, that is, a set of software is used by multiple customers. This approach is also known as single software multiple leasing (SingleInstanceMulti-tenancy).

In the design of database, there are three designs of multi-lease software. each customer company has a database instance, or a table in a database instance, or a table in a database instance shared by multi-customer companies. Almost all SaaS service software developers choose the latter two options, that is, all companies share a database license, thus reducing costs.

Some SaaS service software companies specialize in providing software services for a single enterprise, that is, an one-to-one software delivery model, where customers can request that the software be installed within their own company or hosted by a service provider. Customization ability is one of the most important indicators to measure the quality of enterprise management software, which is why some software developers insist on adopting the software design scheme of single lease in the early days of SaaS.

In contrast, multiple leases greatly enhance the reliability and scalability (Scalability) of the software and reduce maintenance and upgrade costs.

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