Azure DevOps consists of several integrated services and features:

1. Azure Boards: Azure Boards is a work tracking system that helps teams plan, track, and discuss work across the entire development process. It supports Agile, Scrum, and Kanban methodologies and provides features like backlogs, boards, sprint planning, and customizable work items.

2. Azure Repos: Azure Repos is a version control system that supports Git and Team Foundation Version Control (TFVC). It allows teams to manage their source code repositories, collaborate on code, and conduct code reviews.

3. Azure Pipelines: Azure Pipelines is a continuous integration and continuous delivery (CI/CD) platform that automates the building, testing, and deployment of applications. It supports a wide range of programming languages and platforms and can be used to create multi-stage pipelines.

4. Azure Test Plans: Azure Test Plans offers test case management and test execution capabilities. It helps teams plan, track, and manage their testing efforts, including manual and automated testing.

5. Azure Artifacts: Azure Artifacts is a package management service that hosts and manages packages used in software development, including NuGet, npm, Maven, and Python packages.

6. Azure DevTest Labs: Azure DevTest Labs allows teams to create and manage development and testing environments in Azure. It provides on-demand access to virtual machines (VMs) and other resources for development and testing purposes.

7. Azure Monitor: Azure Monitor provides monitoring and telemetry data for applications and infrastructure hosted in Azure. It helps teams gain insights into the performance and health of their applications.

8. Azure Key Vault Integration: Azure DevOps integrates with Azure Key Vault for secure management of secrets and keys used in CI/CD pipelines.

9. Azure DevOps Marketplace: The Azure DevOps Marketplace offers a wide range of extensions and integrations that can enhance the functionality of Azure DevOps, including integrations with popular third-party tools and services.

10. Integration with Azure Services: Azure DevOps can be seamlessly integrated with various Azure services, such as Azure Functions, Azure Logic Apps, Azure Kubernetes Service (AKS), and Azure Container Registry (ACR).