There's no concrete measurement that we can use to define an application as monolithic, but a typical monolithic app tends to have more than 50 modules or packages, more than 50 database tables, and requires more than 30 minutes to build. If we need to add or modify one of those modules, the changes made might affect a lot of code. Therefore, developers try to minimize code changes within the application. This reluctance can lead to the developer hesitation to maintain the application code, however, if problems aren't dealt with in a timely manner. For this reason, developers now tend to divide monolithic applications into smaller pieces and connect them over the network.