Crucible vs Jenkins: What are the differences?

# Introduction
This Markdown code outlines the key differences between Crucible and Jenkins, providing specific insights into their distinct features.

1. **Integration and Collaboration**: Crucible is primarily focused on code reviews and collaboration among team members during the software development process. On the other hand, Jenkins is an automation server that focuses on continuous integration and continuous delivery (CI/CD) processes, such as building, testing, and deploying software.

2. **Functionality**: Crucible is designed for code review workflows that require detailed feedback, discussions, and approvals before merging code changes. In contrast, Jenkins is tailored for automating repetitive tasks in software development, such as building code, running tests, and deploying applications.

3. **Supported Languages**: Crucible supports various programming languages and repositories for code reviews, making it versatile for different development environments. In comparison, Jenkins is language-agnostic and can be used with multiple programming languages due to its plugin-based architecture.

4. **User Interface**: Crucible offers a user-friendly interface for conducting code reviews, providing features like inline commenting, notifications, and dashboards to monitor review progress. Jenkins, on the other hand, focuses on a web-based interface for automating tasks and monitoring build pipelines, with flexibility to customize job configurations.

5. **License and Cost**: Crucible is a commercial product with licensing fees based on the number of users, while Jenkins is an open-source project that is freely available for download and usage, making it a cost-effective option for organizations of any size.

6. **Extensibility**: Crucible offers integration with other Atlassian products like Jira and Bitbucket for seamless collaboration within the development ecosystem. In comparison, Jenkins has a vast library of plugins that can be used to extend its functionality and integrate with various tools and technologies in the software development lifecycle.

# Summary
In summary, Crucible and Jenkins differ in their focus on code reviews and collaboration, automation of CI/CD processes, supported languages, user interface design, licensing costs, and extensibility options for integrations in the software development workflow.