Requirement Change Propagation in Client-Server Applications

Abstract

Requirement change propagation is an important software engineering concern in client-server applications where a change in business rules, user interface behavior, database structure, or server-side logic can affect multiple connected components. In enterprise systems, poorly controlled requirement changes may create inconsistent functionality, broken interfaces, database mismatches, delayed releases, and increased maintenance effort. This article discusses how requirement changes move across client modules, server services, APIs, validation rules, data models, and testing activities. It explains the role of impact analysis, traceability mapping, version control, change approval, interface documentation, and regression testing in managing change propagation. The article also highlights common challenges such as incomplete requirement documentation, weak communication between frontend and backend teams, legacy server dependencies, and unplanned database modifications. A structured change propagation approach is presented to help development teams identify affected components, control implementation risks, and preserve application stability. The study concludes that systematic requirement change propagation management improves coordination, reduces rework, strengthens release quality, and supports reliable evolution of client-server applications.