What is saas system?

The running environment of this paper: Windows7 system and Dell G3 computer.

Saas platform is a platform for operating SaaS software. SaaS providers build all the network infrastructure, software and hardware platforms needed for enterprise informatization, and are responsible for all services such as pre-implementation and post-maintenance. Enterprises can use information systems through the Internet without buying software and hardware, building computer rooms and recruiting IT personnel. SaaS is a software layout model, and its application program is specially designed for network delivery, which is convenient for users to host, deploy and access through the Internet.

SaaS is the abbreviation of software as a service, which means software as a service, that is, providing software services through the network.

Saas platform vendors uniformly deploy application software on their own servers. According to the actual needs, customers can order the required application software services from suppliers through the Internet, pay the fees to suppliers according to the quantity and duration of the ordered services, and obtain the services provided by SaaS platform suppliers through the Internet.

There are three modes of SaaS application software: free, paid and value-added. Payment is usually a "all-inclusive" fee, including the usual application software license fee, software maintenance fee and technical support fee, which is unified as the monthly rental fee for each user.

SaaS is not only suitable for small and medium-sized enterprises, but also for enterprises of all sizes.

characteristic

Internet characteristics

On the one hand, SaaS services provide services to users through Internet browsers or WebServices/Web2.0 programs, which makes SaaS applications have typical Internet technical characteristics. 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, online ERP, online CRM and other module products provided by NetSuite, a well-known product in SaaS software industry, are all based on the network. This advantage is that you can surf the Internet without any hardware cost and professional system maintenance personnel, and a browser can use ERP and CRM systems. Fast implementation, convenient use and low price all depend on the Internet characteristics of SaaS products.

Multi-tenant characteristics

SaaS services usually provide services to hundreds of different customers (also called tenants) based on standard software systems. This requires SaaS services to support data and configuration isolation between different tenants, so as to ensure the security and privacy of each tenant's data, as well as the personalized needs of users such as interface, business logic and data structure. Because SaaS supports multiple tenants at the same time, each tenant has many users, which poses a great challenge to the performance, stability and scalability of the infrastructure platform supporting software. As an Internet-based software delivery model, the core task of SaaS is to optimize the performance and operating cost of software after large-scale application.

Service characteristics

SaaS enables software to be used by customers in the form of Internet-based services, so many issues must be considered, such as the signing of service contracts, the measurement of service usage, the guarantee of online service quality and the collection of service fees. Traditional software usually doesn't consider these problems.

Extensible function

Scalability means maximizing system concurrency and using system resources more effectively. For example, applications: optimizing the persistence of resource locks, using stateless processes, using resource pools to share key resources such as lines and database connections, caching reference data, and partitioning large databases.

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