Catalog – a list of all services added to the marketplace
Customer (buyer) – a person who can view all the services added to the marketplace and book them
Location (site) – a place where the supplier is located and/or provides services
Order – a booking of an appointment
Prepaid order – an order that is paid before the service is provided
Postpaid order – an order that is paid after the service is provided
Supplier (seller, service provider) – a freelancer or a company that sells services on the marketplace