Scalability is often confused with elasticity. Both are related to the number of requests that can be made concurrently in a system, but they are treated differently in architecture. In this lesson Mark Richards defines the differences between scalability and elasticity and demonstrates how they relate to the layered architecture, event-driven architecture, microservices, and finally space based architecture.
Reference Links:
Fundamentals of Software Architecture: https://www.amazon.com/gp/product/1492043451
Training Classes: https://www.developertoarchitect.com/training/
Software Architecture Monday: https://www.developertoarchitect.com/lessons/