\chapter{Υλοποίηση εφαρμογής}\label{chapter:4-application-implementation} \input{chapters/4.application-implementation/4.1.implemented-parts} \input{chapters/4.application-implementation/4.2.implementation-methodology} \input{chapters/4.application-implementation/4.3.implementation-technology-stack} \input{chapters/4.application-implementation/4.4.implementation-architecture} \input{chapters/4.application-implementation/4.5.problems-faced} \input{chapters/4.application-implementation/4.6.design-implementation-differences}