Definition
A Monolith, or Monolithic Architecture, is a software architecture where an entire application is built as a single, tightly interconnected system, rather than broken into smaller, independent services.
Importance
Monoliths aren't inherently bad, they're simpler to build, test, and deploy initially, and remain the right choice for many applications, particularly smaller ones or those with a small team. The problems tend to surface as an application and its team grow: every change carries more risk of affecting something unrelated, and scaling means scaling the entire application even when only one part actually needs more capacity.
Application
We assess whether a monolithic application's current architecture is actually holding it back before recommending a change, since breaking a monolith into microservices introduces real operational complexity that isn't worth taking on if the monolith is still serving the business well. Where a monolith has genuinely become a constraint on scalability or team velocity, we typically recommend a gradual decomposition into microservices for the specific components under the most strain, rather than a disruptive, all at once rearchitecture.
