This blog series discusses scalability from three distinct perspectives: people, processes and technology. If you haven't read the first and the second part of this series yet, we recommend you read them first before continuing with this post.

While scalability is an art more than a science, over time several sound architectural principles have emerged. Examples include designing for rollback or to be disabled, redundancy of all the components, embedded monitoring, asynchronous communication, stateless systems, etc. There isn't a perfect recipe that works for every project, but always keeping these concepts in mind and finding the right balance dramatically increases the chances of success.