A mobile Android application for football club performance management based on the MVVM software architecture pattern

U ovom diplomskom radu zamišljena je i programski implementirana mobilna Android aplikacija za upravljanje performansama nogometnog kluba. Ova aplikacija je napravljena za trenere nogometnih klubova kako bi nakon treninga mogli evidentirati svoje utiske s treninga, imati uvid u napredak svojih igrača ili cjelokupnog tima i kako bi sve navedeno mogli poboljšati. Aplikacija je programski ostvarena u razvojnom okruženju Android Studio te je pisana u programskom jeziku Kotlin. Korisničko sučelje aplikacije također je ostvareno u Kotlinu pomoću biblioteke Jetpack Compose. Za lokalno spremanje podataka korištena je baza podataka Room, a za dohvaćanje podataka s vanjskog poslužitelja korištena je biblioteka Retrofit. Aplikacija je zasnovana na arhitekturi Model-View-ViewModel (MVVM) koja je trenutni standard za razvoj Android aplikacija. Svrha ove aplikacije je olakšati posao treneru i pružiti mu sustavni pregled treninga i igračkih te timskih karakteristika na temelju kojih je moguće poboljšati njihove performanse. Provedeno je ispitivanje definiranih funkcionalnosti aplikacije, a sva tri provedena testa pokazala su uspješnost u njenom ostvarenju. Provedena ispitivanja obuhvaćaju dohvaćanje podataka s vanjskog poslužitelja, rad s bazom podataka te funkcionalnost prikazivanja mogućih poboljšanja za pojedine igrače ili cjelokupni tim. Korištenjem predloška programske arhitekture MVVM postižu se pogodnosti poput slojevitosti koda, pravilna povezanost koda, načela čistog koda te odvajanje odgovornosti u kodu.In this master thesis, a mobile Android application for managing the performance of a football club was conceived and implemented programmatically. This application was made for coaches of football clubs so that after training they could record their impressions from training, have an insight into the progress of their players or the entire team and so that they could improve all of the above. The application was created programmatically in the Android Studio development environment and was written in the Kotlin programming language. The user interface of the application is also realized in Kotlin using the Jetpack Compose library. The Room database was used to store data locally, and the Retrofit library was used to retrieve data from an external server. The application is based on the Model-View-ViewModel (MVVM) architecture, which is the current standard for Android application development. The purpose of this application is to make the coach's job easier and provide him with a systematic overview of training and player and team characteristics on the basis of which it is possible to improve their performance. A test of the application's defined functionalities was conducted, and all three conducted tests showed success in its implementation. The tests carried out include retrieving data from an external server, working with a database, and the functionality of displaying possible improvements for individual players or the entire team. By using the MVVM programming architecture template, benefits such as code layering, proper code connectivity, clean code principles, and separation of concerns in code are achieved