ModelTalk: When Everything Is a Domain-Specific Language

Large-scale, complex, back-end business applications such as telecommunications software constitute a highly competitive and demanding market. These applications feature deep integration with other business and operational support systems. They must be tailored for each customer, and the customized systems must meet strict extrafunctional requirements, commonly called "telco\´s five 9s" (99.999 percent availability). All this, combined with the need for an agile development process with a short time to market, presents a software development and business challenge. ModelTalk, model- driven software development framework, supports the creation of product lines by using domain-specific languages pervasively at the core of the development process.