Have you ever asked yourself: - how and where to start developing a new project from the scratch, - how to choose main components of a new software or how to develop a new feature, - how to decide whether your project needs refactoring, - how to avoid repeating the same issues? This talk will answer all these questions. You will learn: - how to develop the idea from scratch, - how to use principles of Object Oriented Analysis and Design, - how to show amazing architecture design. You will get better understanding where and how to start, analyze and decouple the system, create a clean, clear and extendable architecture. My slides are here: https://atymo.me/projects/presentations/FromIdeaToDesign/