achieve good Cloud design, deployment, migration and services. There are four key areas
to be addressed:(i) Classification;(ii) Organisational Sustainability Modelling (OSM);(iii)
Service Portability and (iv) Linkage. Each area's focus is described, and we explain how
each fits into the CCBF and work altogether. The process that leads the CCBF is supported
by literature, case studies, where examples in each CCBF key area are used to illustrate its …