Scalability cost

The cost of scaling an application is linked to two major factors. The first is the speed of the selected stack used to implement the software. Specifically, the speed and capacity of processing algorithms and answering requests. The second factor is the ability to scale the application of the business part. How long is it applied to features and especially the predictability of new features? The time to create something new or redesigning something that already exists is also expensive.

With microservices architecture, the cost of scalability is usually related to the concept of having smaller areas and parts which are less integrated. Even then this cost is very important.

Think of two applications, one with strong interactivity with the end user, such as an online game or editing documents in real time. Another application is fully illustrative, has an editorial part, but is not open to all users; a newspaper or streaming provider are good examples.

The application of real-time data processing and response time to requests must be fast and dynamic. In the second, application processing, it is not something that has much relevance, as the information may be in a cache or statically stored.

The cost will be high when you do not understand the nature of the microservice to be developed.