Every monolithic ERP I have rescued shared the same failure: the original architects did not design for change.
They designed for day-one requirements. But requirements change. Departments reorganise. The monolith cannot adapt without a rebuild nobody wants to pay for.
Modular-first means every domain — finance, HR, payroll, inventory — is a self-contained unit with defined inputs and outputs. Replaceable, upgradable, or disabled without touching neighbours.
TridaxERP / PrimeERP for Dugo Capital runs 35 modules on this principle. The oldest are still in production, extended three times without a rebuild.
Modularity is not a style preference. It is a survival strategy.
— Dick Bassey | DevDick | 2014