By Beniamino Di Martino, Giuseppina Cretella, Antonio Esposito
This booklet deals readers a brief, finished and up to date assessment of an important methodologies, applied sciences, APIs and criteria concerning the portability and interoperability of cloud purposes and providers, illustrated through a couple of use situations representing numerous interoperability and portability scenarios.
The loss of portability and interoperability among cloud structures at diversified carrier degrees is the most factor affecting cloud-based providers this present day. The brokering, negotiation, administration, tracking and reconfiguration of cloud assets are tough projects for builders and clients of cloud functions end result of the various company versions linked to source intake, and to the diversity of providers and contours provided by way of diversified cloud providers.
In bankruptcy 1 the ideas of cloud portability and interoperability are brought, including the problems and barriers coming up whilst such positive aspects are missing or overlooked. therefore, bankruptcy 2 offers an summary of the state of the art methodologies and applied sciences which are at the moment used or being explored to allow cloud portability and interoperability. bankruptcy three illustrates the most cross-platform cloud APIs and the way they could remedy interoperability and portability concerns. In flip, bankruptcy four provides a collection of ready-to-use strategies which, both due to their broad-scale use in cloud computing eventualities or simply because they make the most of proven or rising criteria, play a primary half in supplying interoperable and conveyable options. finally, bankruptcy five offers an outline of rising criteria for cloud Interoperability and portability.
Researchers and builders of cloud-based companies will locate right here a short survey of the suitable methodologies, APIs and criteria, illustrated by way of case stories and complemented via an in depth reference checklist for extra certain descriptions of each subject covered.
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Additional resources for Cloud Portability and Interoperability: Issues and Current Trends
A VAP represents a collection of applicative components, behavioral politics, and relative links. A workload service, which takes advantage of this kind of pattern, can automatically build the infrastructure and middleware resources needed to operate and manage the virtual application, which thus becomes an instance of the pattern. • Database Patterns are IBM DB2 product extensions that are used to build DB2 databases linked to a virtual application as an existing database component. The existing database component can be a database pattern instance that is managed within the cloud environment, or it can be a remote database that was created and is managed outside the cloud environment.
9 shows the tool used to manage a virtual application platform in the IBM Smart Cloud Application Workload service. The reported VAP is used to build Web applications and it is composed of three elements: • An enterprise application component, where the actual application resides. By clicking on the component a user can add the artifacts needed to run and manage the application. • A database component, representing the storage service associated to the application. A client can easily customize the database characteristics by accessing the component’s properties, or she can leverage a database pattern to design it.
The equivalences marked with an asterisk refer to the patterns that are not fully equivalent to each other but in which there are common components and aspects. 7 Semantic Cloud Patterns While cloud patterns can be extremely useful to model cloud solutions and applications and, therefore, can convey meaningful information to support software porting to the cloud and services’ interoperation, they can be hampered by the lack of a shared machine-readable formalism for their representation. While for design patterns different formalisms, based on the most disparate technologies, have been proposed and discussed , cloud patterns’ formalisms are still missing.