Initial knowledge of software architecture (development history)

With the development of the Internet, the scale of website application is expanding, the conventional vertical application architecture cannot be solved, the distributed service architecture and the mobile computing architecture are imperative, and a governance system is urgently needed to ensure an orderly evolution of the architecture.

Single Application Architecture when the site traffic is small, only one application is deployed to deploy all the features together to reduce deployment nodes and costs. At this point, the data Access Framework (ORM) is the key to simplifying the effort of adding and deleting changes. Vertical Application Architecture when the number of accesses increases, a single application increases the acceleration of the machine, and the application is split into several unrelated applications to improve efficiency. At this point, the Web Framework (MVC) used to accelerate the development of front-end pages is critical. Distributed Service Architecture when vertical application is more and more, the interaction between applications is unavoidable, the core business is extracted, as an independent service, gradually form a stable service center, so that the front-end application can respond to the changeable market demand more quickly. At this point, the Distributed Service Framework (RPC) that is used to improve business reuse and consolidation is critical. Flow Computing Architecture when more and more services, capacity assessment, the waste of small service resources are gradually emerging, it is necessary to add a dispatch center based on access pressure real-time management of cluster capacity, improve cluster utilization. At this point, the resource Scheduling and Governance Center (SOA) that is used to improve machine utilization is critical.