Sre vs Devops: What’s the Difference?

With the growing complexity of application development, organizations are increasingly adopting methodologies that enable reliable, scalable software.

DevOps and site reliability engineering (SRE) are two approaches that enhance the product release cycle through enhanced collaboration, automation, and monitoring. Both approaches utilize automation and collaboration to help teams build resilient and reliable software—but there are fundamental differences in what these approaches offer and how they operate.

So, this article delves into the purpose of DevOps and SRE. We’ll look at both approaches, including benefits, differences, and key elements.

(This article is part of our DevOps Guide. Use the right-hand menu to navigate.)

DevOps basics

DevOps is an overarching concept and culture aimed at ensuring the rapid release of stable, secure software. DevOps exists at the intersection of Agile development and Enterprise Systems Management (ESM) practices.

Early development methodologies involved development and operations teams working in silos, which led to slower development and unstable deployment environments. To solve this, the DevOps methodology integrates all stakeholders in the application into one efficient workflow which enables the quick delivery of high quality software.

By allowing communication and collaboration between cross-functional teams, DevOps also enables:

• Reliable service delivery
• Improved customer satisfaction

(Explore our multi-part DevOps Guide.)

DevOps practices & methods

DevOps practices are based on continuous, incremental improvements bolstered by automation. While a full-fledged automation is rarely possible, for a comprehensive automation, a DevOps methodology focuses on the following elements:

Continuous delivery & integration (CI/CD)

DevOps aims to deliver applications and updates to customers rapidly and frequently. By using CI/CD pipelines to seamlessly connect processes and practices, DevOps automates updating and releasing code into production.

CI/CD also involves continuous monitoring and deployment to ensure code consistency across various software versions and deployment environments.

(Set up your own CI/CD pipeline.)

Infrastructure as code

DevOps emphasizes the abstraction of IT infrastructure so that it can be managed using software engineering methods and provisioned automatically. This results in an efficient system that allows your team to efficiently:

• Track changes
• Monitor infrastructure configurations
• Roll back changes that have undesired/unintended effects

Automated testing

Code is automatically and continuously tested while it is being written or updated. By eliminating the bottlenecks associated with pre-release testing, the continuous mechanism speeds up the deployment.

DevOps works with…

Apart from the elements that help DevOps practices enable comprehensive automation, DevOps also relies on various methods that inherently enable faster delivery, efficient automation, and enhanced collaboration. Some methodologies that DevOps uses or otherwise pairs well with include:

• Scrum. This framework describes the composition and roles of teams collaborating to accelerate quality assurance and code development. The scrum framework defines designated roles in the project and key workflows within all phases of a software development lifecycle (SDLC).
• Kanban. A key workflow management mechanism that enables teams to define, manage, and improve on services that deliver business value.
• Agile. The Agile framework defines processes that improve software teams’ responsiveness to changing market needs by enabling rapid, frequent, and iterative updates. Agile enables shorter development cycles which allow for a clearer understanding of business and development goals for improved customer satisfaction.

(Compare Scrum, Kanban & Agile.)