Reliable software implementation using domain-specific languages

We describe the use of domain-specific languages for expressing critical design values and constraints in a civil engineering CAD software application. Through the use of these specialised languages information that is critical to the correct operation of the software can be expressed in a form that can be easily drafted, verified, and maintained by domain experts (civil engineers) thus minimising the risk inherent from the mediation of software engineers. Although domain-specific languages can offer increased expressiveness, runtime efficiency, and reliability at a modest implementation cost, system architects should take into account the issues of training costs, tool support, and software process integration.