Agile Methodologies

Scrum Master is a role of a scrum team.

Twelve principles behind the Agile Manifesto.

Until some point, the project was manageable, but after some feature requests and bug reports, it became unfeasible. In addition, almost every bug fix or feature implementation broke other "uncorrelated" parts of the application. That slowed us down a lot because our client and his customers were using the software, and we had to rush to fix the new bugs (yes, we didn't have testing at that time).

Is describes a set of meetings/events/ceremonies, tools/artifacts and roles to help teams structure and manage their work.

Agile emphasizes small, incremental changes to the product that the team can deliver quickly and iteratively.