Sre, or operations and maintenance development, aims to bridge the gap between development teams and operations and maintenance teams to improve the efficiency of software deployment and the reliability of software operation. The difference between sre and O&M can be seen in the reasons for the birth of this profession:

1, the growth of enterprise costs and the growth of users does not change linearly. However, as the complexity of the system increases, the formation of more and more, the user's traffic pressure is also increasing, the related changes will be more and more, the order of change between the modules will be more and more complex. In such a case, simply relying on the number of operation and maintenance manpower to improve can not meet the development needs of the business, and will enhance the cost of the enterprise;

2, the traditional R & D team and operation and maintenance team naturally has a conflict . The company's IT staff configuration: research and development (Dev) and operation and maintenance (Ops), R & D departments focus on rapid construction and rapid release; operation and maintenance departments are concerned about how to avoid failures, from the goal is contradictory.

3, production tools to adapt to the inevitable product of productivity development . In order to improve the overall efficiency and quality of the IT industry, so that from the era of manual operation and maintenance, gradually over to the scripting tools operation and maintenance, in the development of platform data operation and maintenance, and then to the platform software operation and maintenance, in the development of intelligent automation operation and maintenance. Through a series of means, tools, the concept of progress, the Ops technology development to DevOps, DataOps, AIOps, etc.;