Business & Information Systems Engineering

Document Type

State of the Art


Cloud Computing lifts the borders between
the access control domain of individuals’
and companies’ IT systems
by processing their data within the application
frameworks and virtualized
runtime environments of Cloud service
providers. A deployment of traditional
security policies for enforcing confidentiality
of Cloud users’ data would
lead to a conflict with the availability
of the Cloud’s software services: confidentiality
of data would be assured but
Cloud services would not be available
for every user of a Cloud. This stateof-
the-art contribution shows the analogy
of the confidentiality of external
data processing by Cloud services with
mechanisms known and applied in privacy.
Sustainability in Cloud is a matter
of privacy, which in Cloud is called “isolation”.