Why microservices provide more flexibility
Flexible software systems based on a microservice approach are better geared to adapt solutions to changing requirements and roll them out quickly. The advantage over complete solutions (especially monoliths): significantly faster implementation and introduction phases as well as process support that is more user-oriented due to the focus on individual business processes. Updates and changes can be made available in a customer-specific manner.
The following comparison shows how you can imagine this by using the example of a house construction:
Monolithic approach – easy to build, hard to change
In a classic house of rectangular shape, windows, doors, walls, basement, floors have a fixed, pre-defined place – it is a monolithic structure where everything is connected.
Subsequent changes, e.g., demolition of walls to create new rooms for other purposes, an annex or the addition of another floor, require extensive structural analysis and have an impact on all remaining building components.
Microservice approach – independently modular
If, on the other hand, the builder opts for a modular construction method, not relying on a cuboid overall structure cast in in-situ concrete, but containers in a hexadiagonal format, similar to the honeycombs in a beehive, they will be better equipped from the outset if their requirements change in the future.
In principle, a container can be easily replaced or moved as a whole, and is stable on its own. Changes can be made that do not affect other containers. This simplifies the structure and the entire structure is easier to handle.