Introduction: Cloud Computing in general involves delivering hosted services over the Internet. The model enables convenient, on‐demand network access to a shared pool of configurable computing resources. Services and Resources involve
Cloud Infrastructure as a Service (IaaS) Infrastructure services provide building blocks that can be moulded to run different application servers, packaged applications, etc., which can be used to host applications. Infrastructure Services include -
Storage - Provide metered, on‐demand storage of structure or un‐structured data delivered as a service.
Cloud Platform as a Service (PaaS) Platform services offer a ready built infrastructure and application frameworks that can be used for building and running applications. Platform Services include -
General Purpose - provide development tools for cloud‐capable applications or application fragments.
Vendors - Force.com, LongJump, Google App Engine, MS Azure Services Platform
Business Intelligence - provide business intelligence capabilities as service and can be cloud‐based.
Vendors - Aster DB, Panaroma, Vertica
Integration - provide integration and process orchestration capabilities delivered as a service.
Vendors - Amazon SQS, HubSpan, Microsoft BizTalk Services
Cloud Platform as a Service (PaaS) Platform Services include -
Development & Testing - provide software development life‐cycle management capabilities delivered as a service.
Vendors - Mercury, LoadStorm, Collabnet
Database - provide data management services to application developers delivered as a service.
Vendors - Google BigTable, Amazon SimpleDB, FathomDB, Microsoft SDS
Cloud Software as a Service (SaaS) Software services are applications or components that can be used as an end application or used as part of a custom solution Software Services include –
Billing, Financials, Legal, Human Resources - Aria Systems, OpSource
World Wide IT Cloud Services Revenue in 2009 IDC - September 2009
World Wide IT Cloud Services Revenue in 2013 IDC
Cloud Deployment Model Private Cloud - The cloud infrastructure is operated solely for an organization. Community Cloud - Several organizations have similar requirements and seek to share the cloud infrastructure. Public Cloud – Cloud computing through off-site third-party provider Hybrid Cloud – Mix of Cloud models. Normally used for archiving and backup functions
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