Crystal Clear

"Crystal Clear" is an agile methodology specifically designed for small software development teams. It was developed by Alistair Cockburn, one of the co-authors of the Agile Manifesto. Crystal Clear aims to apply agile principles to small teams while taking into account the specifics and challenges of such teams.

Here are some features and principles of Crystal Clear:

1. Small Teams: Crystal Clear is particularly designed for teams consisting of about two to eight members. It acknowledges that communication and coordination can be more efficient in smaller teams and that larger agile frameworks might be overkill.

2. Clear Communication: The methodology emphasizes the importance of communication within the team as well as with stakeholders. Clear communication is crucial to ensure that all parties have a shared understanding of requirements and goals.

3. Frequent Delivery: Like many agile methodologies, Crystal Clear emphasizes the regular delivery of functioning software. Through frequent deliveries, customers and team members receive early feedback, contributing to improving quality and adaptability.

4. Low Process Overhead: Crystal Clear aims for a lightweight process that promotes efficiency but does not burden unnecessarily. The goal is to keep the process as simple as possible to maintain team agility and flexibility.

5. Personal Interaction: The methodology stresses the importance of personal interaction over written communication. Face-to-face conversations are considered more effective in minimizing misunderstandings and fostering deeper collaboration.

6. Technical Excellence: Crystal Clear values technical excellence and quality in software development. Using proven practices and focusing on clean, maintainable code are key principles.

7. Retrospectives and Adaptations: Similar to other agile methodologies, Crystal Clear emphasizes conducting regular retrospectives. The team reflects on its work process and identifies improvement opportunities.

Crystal Clear is intentionally lightweight and flexible to cater to the needs of small teams. It aims to apply the values and principles of agile software development in a context specifically tailored to the dynamics and challenges of small teams.