High level and low level design

High level design

optimize processes and increase throughput by using same resources
- vertical scaling
preparing beforehand daily at non peak hours
- preprocessing adn cron jobs
make system resilient - recovering form failures quickly
keep backups and avoid single point of failure
hire more resources
- horizontal scaling
microservice architecture
- each service performs specific task - decoupling
distributed systems
- partitioning
load balancer
system should be
- scalable
- fault tolerance
- extensible - easily modifiable to add new functionality
decoupling - separation of responsibility, dividing into small systems
logging and metrics