All students need to submit their thesis to Theseus; a national database for theses.
Theseus External link is an electronic library that offers the possibility to access theses and publications of the Finnish Universities of Applied Sciences. Theseus is a service offered by Arene ry, the Rectors' Conference of Finnish Universities of Applied Sciences.
More information here regarding how you, as a student at Arcada, also have to submit your thesis to Theseus.