دانلود Approaches to End-User Applications Portability in the Cloud: A Survey

Abstract

End-user  applications  are  provisioned  in cloud  settings  using  PaaS.  Portability  is  key  to  the  success  of  end-user  application  providers because it helps avoid vendor lock-in. It makes the components deployment of the same end-user application across multiple PaaS possible. It also enables them to move end-user applications from  PaaS  to  PaaS  with  minimal  adaptation  efforts. This survey discusses and evaluates the approaches proposed so far within the standardization bodies, research projects, and academia for enabling end-user applications portability in PaaS. It also identifies the trajectory of research on the topic. An illustrative use case is described in order to identify evaluation requirements, and then  the  state  of  the  art  is  reviewed  in  light  of the requirements. The identified research directions  are  related  to  application  executables,  deployment  descriptors,  and  operations,  and  a  comprehensive set of management operations in  the PaaS.