CLOUD COMPUTING VOCABULARY AND REFERENCE ARCHITECTURE
The first two international standards of SC 38 on cloud computing have been developed by a collaborative team comprising experts from WG 3 and the Study Group SG 13 of the International Telecommunication Union (Telecommunication Standardization Sector) ITU-T:
- Information Technology – Cloud Computing – Overview and Vocabulary
- Information Technology – Cloud Computing – Cloud Computing Reference Architecture
Both standards are expected to be published as free-of-charge documents by the end of 2014:
- The reference architecture introduces a user and a functional perspective on cloud computing systems. The user perspective describes the major roles that parties involved in cloud computing service usage and provisioning can assume. The functional perspective describes the technical components (or functional blocks) of a cloud system.
- Mapping to ISO/IEC 20000-1. The international standard ISO/IEC 20000-1 describes requirements on IT service provisioning in terms of processes of an IT service provider. The collaborative team of SC 38 and SG 13 has formed an ad-hoc expert group under the lead of experts from Fraunhofer FOKUS to analyze the relationship between these processes and the activities of the Cloud Service Provider role described in the reference architecture. An extensive report summarizing the results of this analysis has been compiled and submitted to ISO/IEC JTC 1/SC 40, the subcommittee responsible for maintaining the ISO/IEC 20000 standards family.
Cloud computing service level agreements
Recently, WG 3 of SC 38 has started a new project on Service Level Agreements (SLAs) for cloud computing. A three-part standard is under development that aims on providing a framework for defining SLAs in a unified way allowing for comparison of the offers of different cloud service providers. The three parts of the standard are:
- Information Technology – Cloud Computing – Service Level Agreement (SLA) Framework and Terminology – Part 1: Overview and Concepts
- Information Technology – Cloud Computing – Service Level Agreement (SLA) Framework and Terminology – Part 2: Metrics
- Information Technology – Cloud Computing – Service Level Agreement (SLA) Framework and Terminology – Part 3: Core Requirements
With the finalization of the projects on cloud computing vocabulary and reference architecture, SC 38 has established a study group to identify new work items. A number of possible future projects have been discussed. Two of them have been accepted as new SC 38 projects:
- Cloud computing data classification and data flows. The outcome of this project will be a standard that describes data types and data flows defined by the inter-relationship between cloud services and their usage through mobile devices.
- Cloud computing interoperability and portability. Nowadays, the terms interoperability and portability are used in various contexts, referring to a number of different concepts. This standard will describe various types of interoperability and portability between cloud services.