Authors:
Donald F. Ferguson
and
Ethan Hadar
Affiliation:
CA Technologies, United States
Keyword(s):
Supply-Chain Enterprise Systems, Cloud Computing, IT Services, Business-IT alignment, Enterprise Service Architecture.
Related
Ontology
Subjects/Areas/Topics:
Business-It Alignment
;
Context
;
Context-Aware Systems
;
Cross-Feeding between Data and Software Engineering
;
e-Business
;
Embedded Communications Systems
;
Enterprise Engineering
;
Enterprise Information Systems
;
Enterprise Service Architectures
;
Enterprise Software Technologies
;
Model-Driven Engineering
;
Paradigm Trends
;
Software Architectures
;
Software Economics
;
Software Engineering
;
Software Engineering Methods and Techniques
;
Supply-Chain Enterprise Systems
;
Telecommunications
Abstract:
An enterprise that exploits its IT-services from the cloud, and optionally provides some of the services to its customers via the cloud, is defined by us as cloud-connected enterprise (CCE). Consumption from the cloud and provisioning to the cloud of IT services defines an IT supply-chain environment. Considering the conceptual similar offerings from different vendors is economical attractive, as specialization in services increases the quality and cost-effectiveness of the service. The overall value of a service is composed of characteristics that may be summarized as QARCC: Quality, Agility, Risk, Capability and Cost. Tradeoffs between implementing services internally and consuming services externally may depend on these characteristics and their sub-characteristics. Regardless of the origin of the services or sub-services, we propose that the construction or consumption of the solution should follow dedicated cloud-oriented lifecycle for managing such services. The proposed increm
ental and iterative process, fosters an agile approach of refactoring and optimization. It is based on the assumptions that services change their QARCC characteristics over time due to emerging opportunities for replacement of sub-components. It is designed to operate in internal clouds as well as external and hybrid ones.
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