Final answer:
The purpose of using domain-specific language (DSL) is to improve performance in specific tasks by offering higher productivity, reduced complexity, and domain-specific optimizations for a narrow set of problems.
Step-by-step explanation:
The purpose of using domain-specific language (DSL) is primarily to improve performance in specific tasks. DSLs are specialized programming or specification languages designed to be highly efficient for a particular set of problems. They can help developers to solve complex problems within a domain, using idioms, constructs, and abstractions that are tailor-made for the tasks at hand. For instance, SQL is a DSL for managing databases, and it's highly optimized for querying and modifying data in relational database management systems.
Unlike general-purpose languages that are broad in scope and can be used across various domains, DSLs offer a higher level of abstraction and domain-specific optimizations that may not be possible with general-purpose programming languages. By focusing on a narrow set of tasks, DSLs deliver higher productivity, reduced complexity, and often better performance. They are also more user-friendly for domain experts who may not be professional programmers but need an efficient tool to express domain concepts directly.