Abstract— The development of increasingly sophisticated technology makes mobile devices become main alternative in managing life's affairs. Mobile device that offers services and computing is a smartphone. The sophistication of smartphone technology can be used to process attendance. Attendance system is a system that can record presence of each user, attendance system can be processed using several types of attendance including conventional attendance using a signature and digital attendance using Face Recognition and QR code. Processing attendance system, the geolocation feature can be used to find location. This study aims to explain and determine the best digital attendance method between Face Recognition and QR code using geolocation. Based on the explanation of previous research and comparing the Face Recognition and QR code methods in processing the attendance system, the results obtained that the QR code method is the best method for digital attendance because it has high accuracy and is easier to implement. Key Words— Attendance System, Mobile Device, Geolocation, Face Recognition, QR code

Pandemi Corona Virus Disease 2019 (Covid-19) diumumkan oleh WHO (World Health Organization) pada tanggal 11 Maret 2020. WHO menjelaskan Coronavirus merupakan virus yang dapat menyebabkan penyakit pada hewan dan manusia. Penyebaran virus Covid-19 sudah menyebar hingga indonesia dan telah menyebar ke seluruh Provinsi. Penyebaran COVID-19 dapat dimodelkan secara matematis dengan model SIR. Model SIR dibagi menjadi tiga kompartemen, yaitu individu rentan, individu terinfeksi, dan individu sembuh. Estimasi SIR dapat diperiksa tingkat kesalahannya menggunakan metode MAPE. Hasil estimasi SIR di Provinsi Bali menunjukkan pada tanggal 31 Desember 2022 jumlah orang yang terinfeksi virus COVID-19 mencapai 207.220 penduduk. Model SIR ini menghasilkan nilai  = 1,393524 yang menandakan bahwa di Provinsi Bali kasus terinfeksi COVID-19 masih akan terus bertambah. Model SIR menghasilkan tingkat error sebesar 21% dengan menggunakan metode MAPE.Kata Kunci— COVID-19; SIR; MAPE.