What sequence of steps is implemented in the development of this project?

The sequence of steps in project development typically includes the following stages:

1. Requirements analysis — gathering and clarifying functional requirements.
2. Design — creating architecture, selecting technologies and tools.
3. Development — writing code according to specifications.
4. Testing — verifying functionality and code quality.
5. Code review — mutual code review within the team to improve quality.
6. Build and deployment — preparing and deploying the application in the required environment.
7. Support and maintenance — fixing bugs and adding new features.

This sequence may vary depending on the development methodology (e.g., Agile, Scrum, Waterfall), but generally reflects the standard software development lifecycle.