What do you model as Application Service when infrastructure components were sold

[NatalijaL]

IT operations not only sell complete solutions including application operation to customers, but also offer individual infrastructure components (servers, databases, etc.), where the application is operated by the customer. What do you model as Application Service in this case?

[Robert Campbell]

You could possibly look at it as IaaS or DaaS. Your IaaS business application has as many instances as you have customers. Something like this maybe.