Improvements of the syntax of the query language DQL

Sammanfattning: This thesis focuses on improving the syntax of a query language named DQL(Dynamic Query Language) in order to enhance the user experience and productivity of its users. The study investigates the original state of the query language and identifies areas for improvement in terms of intuitiveness, efficiency, and consistency.  Through an extensive review of existing literature and case studies, the thesis develops a set of guidelines for designing intuitive query languages that minimise the cognitive load for users. The thesis also proposes several modifications to the syntax of DQL that aim to simplify the structure and improve the readability of queries. Finally, the thesis evaluates the effectiveness of the proposed modifications through  semi-structured interviews to compare the original syntax with the proposed new one.