This document provides information about cloud computing types and deployment models. It discusses private cloud, which is for a single organization; public cloud, which provides services to the general public; hybrid cloud, which uses a combination of private and public clouds; and community cloud, which is shared between organizations with common interests. It also outlines common cloud software including OpenStack for managing resources, Hadoop for big data, and VMware for virtualization.
“The chapter is organized into two primary sections that explore cloud delivery model issues pertaining to cloud providers and cloud consumers respectively.”
A Virtualization Model for Cloud ComputingSouvik Pal
Cloud Computing is now a very emerging field in the IT industry as well as research field. The advancement of Cloud Computing came up due to fast-growing usage of internet among the people. Cloud Computing is basically on-demand network access to a collection of physical resources which can be provisioned according to the need of cloud user under the supervision of Cloud Service provider interaction. From business prospective, the viable achievements of Cloud Computing and recent developments in Grid computing have brought the platform that has introduced virtualization technology into the era of high performance computing. Virtualization technology is widely applied to modern data center for cloud computing. Virtualization is used computer resources to imitate other computer resources or whole computers. This paper provides a Virtualization model for cloud computing that may lead to faster access and better performance. This model may help to combine self-service capabilities and ready-to-use facilities for computing resources.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Cloud computing basically involves delivering hosted services over the Internet to store, manage, and process data, instead of using local server or a personal computer. These services are broadly divided into three categories: Infrastructure-as-a-Service (IaaS), Platform-as-a-Service (PaaS) and Software-as-a-Service (SaaS). In scientific terms, cloud computing is a synonym for distributed computing over a network which means the ability to run a program on many connected computers at the same time. Therefore it involves a large number of computers that are connected through a real-time communication network.
Design & Development of a Trustworthy and Secure Billing System for Cloud Com...iosrjce
Cloud computing is an important transition that makes change in service oriented computing
technology. Cloud service provider follows pay-as-you-go pricing approach which means consumer uses as
many resources as he need and billed by the provider based on the resource consumed. CSP give a quality of
service in the form of a service level agreement. For transparent billing, each billing transaction should be
protected against forgery and false modifications. Although CSPs provide service billing records, they cannot
provide trustworthiness. It is due to user or CSP can modify the billing records. In this case even a third party
cannot confirm that the user’s record is correct or CSPs record is correct. To overcome these limitations we
introduced a secure billing system called THEMIS. For secure billing system THEMIS introduces a concept of
cloud notary authority (CNA). CNA generates mutually verifiable binding information that can be used to
resolve future disputes between user and CSP. This project will produce the secure billing through monitoring
the service level agreement (SLA) by using the SMon module. CNA can get a service logs from SMon and stored
it in a local repository for further reference. Even administrator of a cloud system cannot modify or falsify the
data.
“The chapter is organized into two primary sections that explore cloud delivery model issues pertaining to cloud providers and cloud consumers respectively.”
A Virtualization Model for Cloud ComputingSouvik Pal
Cloud Computing is now a very emerging field in the IT industry as well as research field. The advancement of Cloud Computing came up due to fast-growing usage of internet among the people. Cloud Computing is basically on-demand network access to a collection of physical resources which can be provisioned according to the need of cloud user under the supervision of Cloud Service provider interaction. From business prospective, the viable achievements of Cloud Computing and recent developments in Grid computing have brought the platform that has introduced virtualization technology into the era of high performance computing. Virtualization technology is widely applied to modern data center for cloud computing. Virtualization is used computer resources to imitate other computer resources or whole computers. This paper provides a Virtualization model for cloud computing that may lead to faster access and better performance. This model may help to combine self-service capabilities and ready-to-use facilities for computing resources.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Cloud computing basically involves delivering hosted services over the Internet to store, manage, and process data, instead of using local server or a personal computer. These services are broadly divided into three categories: Infrastructure-as-a-Service (IaaS), Platform-as-a-Service (PaaS) and Software-as-a-Service (SaaS). In scientific terms, cloud computing is a synonym for distributed computing over a network which means the ability to run a program on many connected computers at the same time. Therefore it involves a large number of computers that are connected through a real-time communication network.
Design & Development of a Trustworthy and Secure Billing System for Cloud Com...iosrjce
Cloud computing is an important transition that makes change in service oriented computing
technology. Cloud service provider follows pay-as-you-go pricing approach which means consumer uses as
many resources as he need and billed by the provider based on the resource consumed. CSP give a quality of
service in the form of a service level agreement. For transparent billing, each billing transaction should be
protected against forgery and false modifications. Although CSPs provide service billing records, they cannot
provide trustworthiness. It is due to user or CSP can modify the billing records. In this case even a third party
cannot confirm that the user’s record is correct or CSPs record is correct. To overcome these limitations we
introduced a secure billing system called THEMIS. For secure billing system THEMIS introduces a concept of
cloud notary authority (CNA). CNA generates mutually verifiable binding information that can be used to
resolve future disputes between user and CSP. This project will produce the secure billing through monitoring
the service level agreement (SLA) by using the SMon module. CNA can get a service logs from SMon and stored
it in a local repository for further reference. Even administrator of a cloud system cannot modify or falsify the
data.
www.iosrjournals.org 57 | Page Latest development of cloud computing technolo...Sushil kumar Choudhary
Cloud computing is a network-based environment that focuses on sharing computations, Cloud computing networks access to a shared pool of configurable networks, servers, storage, service, applications & other important Computing resources. In modern era of Information Technology, the accesses to all information about the important activities of the related fields. In this paper discuss the advantages, disadvantages, characteristics, challenge, deployment model, cloud service model, cloud service provider & various applications areas of cloud computing such as small & large scale (manufacturing, automation, television, broadcast, constructions industries), Geographical Information system (GIS), Military intelligence fusion (MIS), business management, banking, Education, healthcare, Agriculture sector, E-Governance, project planning, cloud computing in family etc.
International Journal of Engineering Research and DevelopmentIJERD Editor
Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
Automation and Mechatronics Engineering,
Material and Chemical Engineering,
Civil and Architecture Engineering,
Biotechnology and Bio Engineering,
Environmental Engineering,
Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
Abstract--The paper identifies the issues and the solution to overcome these problems. Cloud computing is a subscription based service where we can obtain networked storage space and computer resources. This technology has the capacity to admittance a common collection of resources on request. It is the application provided in the form of service over the internet and system hardware in the data centers that gives these services. But having many advantages for IT organizations cloud has some issues that must be consider during its deployment. The main concern is security privacy and trust. There are various issues that need to be dealt with respect to security and privacy in a cloud computing scenario [4].
Keywords--Cloud, Issues, Security, Privacy, Resources, Technology.
Cloud Computing is a versatile technology that can support a broad-spectrum of applications. The low cost of cloud computing and its dynamic scaling renders it an innovation driver for small companies, particularly in the developing world. Cloud deployed enterprise resource planning (ERP), supply chain management applications (SCM), customer relationship management (CRM) applications, medical applications and mobile applications have potential to reach millions of users. In this paper, we explore the different concepts involved in cloud computing. Leveraging our experiences on various clouds, we examine clouds from technical, and service aspects. We highlight some of the opportunities in cloud computing, underlining the importance of clouds and showing why that technology must succeed. Finally, we discuss some of the issues that this area should deal with. The paper aims to provide a means of understanding the model and exploring options available for complementing your technology and infrastructure needs.
CA NOTES ON EMERGING TECHNOLOGIES
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From the server room to the board room, there is a lot of talk about “the cloud” — and for good reason. The cloud offers organizations — and their information technology (IT) staffs, in particular — a number of important benefits ranging from increased efficiencies to scalability. Taking advantage of these benefits requires understanding the various cloud models available and how they can best meet your organization’s specific needs.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
www.iosrjournals.org 57 | Page Latest development of cloud computing technolo...Sushil kumar Choudhary
Cloud computing is a network-based environment that focuses on sharing computations, Cloud computing networks access to a shared pool of configurable networks, servers, storage, service, applications & other important Computing resources. In modern era of Information Technology, the accesses to all information about the important activities of the related fields. In this paper discuss the advantages, disadvantages, characteristics, challenge, deployment model, cloud service model, cloud service provider & various applications areas of cloud computing such as small & large scale (manufacturing, automation, television, broadcast, constructions industries), Geographical Information system (GIS), Military intelligence fusion (MIS), business management, banking, Education, healthcare, Agriculture sector, E-Governance, project planning, cloud computing in family etc.
International Journal of Engineering Research and DevelopmentIJERD Editor
Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
Automation and Mechatronics Engineering,
Material and Chemical Engineering,
Civil and Architecture Engineering,
Biotechnology and Bio Engineering,
Environmental Engineering,
Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
Abstract--The paper identifies the issues and the solution to overcome these problems. Cloud computing is a subscription based service where we can obtain networked storage space and computer resources. This technology has the capacity to admittance a common collection of resources on request. It is the application provided in the form of service over the internet and system hardware in the data centers that gives these services. But having many advantages for IT organizations cloud has some issues that must be consider during its deployment. The main concern is security privacy and trust. There are various issues that need to be dealt with respect to security and privacy in a cloud computing scenario [4].
Keywords--Cloud, Issues, Security, Privacy, Resources, Technology.
Cloud Computing is a versatile technology that can support a broad-spectrum of applications. The low cost of cloud computing and its dynamic scaling renders it an innovation driver for small companies, particularly in the developing world. Cloud deployed enterprise resource planning (ERP), supply chain management applications (SCM), customer relationship management (CRM) applications, medical applications and mobile applications have potential to reach millions of users. In this paper, we explore the different concepts involved in cloud computing. Leveraging our experiences on various clouds, we examine clouds from technical, and service aspects. We highlight some of the opportunities in cloud computing, underlining the importance of clouds and showing why that technology must succeed. Finally, we discuss some of the issues that this area should deal with. The paper aims to provide a means of understanding the model and exploring options available for complementing your technology and infrastructure needs.
CA NOTES ON EMERGING TECHNOLOGIES
FREE AFFIDAVITS AND NOTICES FORMATS
FREE AGREEMENTS AND CONTRACTS FORMATS
FREE LLB LAW NOTES
FREE CA ICWA NOTES
FREE LLB LAW FIRST SEM NOTES
FREE LLB LAW SECOND SEM NOTES
FREE LLB LAW THIRD SEM NOTES
FREE LLB LAW FOURTH SEM NOTES
FREE LLB LAW FIFTH SEM NOTES
FREE LLB LAW SIXTH SEM NOTES
FREE CA ICWA FOUNDATION NOTES
FREE CA ICWA INTERMEDIATE NOTES
FREE CA ICWA FINAL NOTES
KANOON KE RAKHWALE INDIA
HIRE LAWYER ONLINE
LAW FIRMS IN DELHI
CA FIRM DELHI
VISIT : https://www.kanoonkerakhwale.com/
VISIT : https://hirelawyeronline.com/
From the server room to the board room, there is a lot of talk about “the cloud” — and for good reason. The cloud offers organizations — and their information technology (IT) staffs, in particular — a number of important benefits ranging from increased efficiencies to scalability. Taking advantage of these benefits requires understanding the various cloud models available and how they can best meet your organization’s specific needs.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Understanding the cloud computing stackSatish Chavan
Understanding the cloud computing stack
Introduction
Key characteristics
At Glance
Standardization, Migration &Adaptation
Service models
Deployment models
Network as a Service
Software as a Service (SaaS).
Platform as a Service (PaaS).
Infrastructure as a Service (IaaS).
Communications as a Service (CaaS)
Data as a Service - DaaS
Benefits & Challenges
Security Risks & Challenges
Cloud Vendors
By embracing the different types of cloud computing, organizations can achieve greater flexibility, scalability, cost-efficiency, and access to a wide range of services. Cloud computing has revolutionized the way businesses operate and has become an integral part of modern IT infrastructure, enabling innovation, collaboration, and agility in the digital age.
This is the firs presentation I created for training IBM EBIS community on cloud computing and apporach to cloud sales and projects. All the materials come from IBM internal documentation and precedent classes slide.
The cloud computing is delivery of computing services over Internet. It allows individuals and businesses to use software and hardware that are managed by third parties at remote locations.
ITU-T requirement for cloud and cloud deployment modelHitesh Mohapatra
List and explain the functional requirements for networking as per the ITU-T technical report. List and explain cloud deployment models and list relative strengths and weaknesses of the deployment models with neat diagram.
Introduction
Cloud computing is the delivery of computing services—servers, storage, databases, networking, software, analytics and more—over the Internet (“the cloud”).
It is a paradigm that allows on-demand network access to shared computing resources. A model for managing, storing and processing data online via the internet.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
Slack (or Teams) Automation for Bonterra Impact Management (fka Social Soluti...Jeffrey Haguewood
Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows.
We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on the notifications, alerts, and approval requests using Slack for Bonterra Impact Management. The solutions covered in this webinar can also be deployed for Microsoft Teams.
Interested in deploying notification automations for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
PHP Frameworks: I want to break free (IPC Berlin 2024)Ralf Eggert
In this presentation, we examine the challenges and limitations of relying too heavily on PHP frameworks in web development. We discuss the history of PHP and its frameworks to understand how this dependence has evolved. The focus will be on providing concrete tips and strategies to reduce reliance on these frameworks, based on real-world examples and practical considerations. The goal is to equip developers with the skills and knowledge to create more flexible and future-proof web applications. We'll explore the importance of maintaining autonomy in a rapidly changing tech landscape and how to make informed decisions in PHP development.
This talk is aimed at encouraging a more independent approach to using PHP frameworks, moving towards a more flexible and future-proof approach to PHP development.
Connector Corner: Automate dynamic content and events by pushing a buttonDianaGray10
Here is something new! In our next Connector Corner webinar, we will demonstrate how you can use a single workflow to:
Create a campaign using Mailchimp with merge tags/fields
Send an interactive Slack channel message (using buttons)
Have the message received by managers and peers along with a test email for review
But there’s more:
In a second workflow supporting the same use case, you’ll see:
Your campaign sent to target colleagues for approval
If the “Approve” button is clicked, a Jira/Zendesk ticket is created for the marketing design team
But—if the “Reject” button is pushed, colleagues will be alerted via Slack message
Join us to learn more about this new, human-in-the-loop capability, brought to you by Integration Service connectors.
And...
Speakers:
Akshay Agnihotri, Product Manager
Charlie Greenberg, Host
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
"Impact of front-end architecture on development cost", Viktor TurskyiFwdays
I have heard many times that architecture is not important for the front-end. Also, many times I have seen how developers implement features on the front-end just following the standard rules for a framework and think that this is enough to successfully launch the project, and then the project fails. How to prevent this and what approach to choose? I have launched dozens of complex projects and during the talk we will analyze which approaches have worked for me and which have not.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
6. Essential Characteristics Cloud
On-demand self-service.A consumer can unilaterally provision computing
capabilities, such as server time and network storage, as needed automatically
without requiring human interaction with each service provider.Broad network
access. Capabilities are available over the network and accessed through standard
mechanisms that promote use by heterogeneous thin or thick client platforms
(e.g., mobile phones, tablets, laptops, and workstations).
Resource pooling.The provider's computing resources are pooled to serve multiple
consumers using a multi-tenant model, with different physical and virtual
resources dynamically assigned and reassigned according to consumer
demand. ...
Rapid elasticity. Capabilities can be elastically provisioned and released, in some
cases automatically, to scale rapidly outward and inward commensurate with
demand.To the consumer, the capabilities available for provisioning often appear
unlimited and can be appropriated in any quantity at any time.
Measured service. Cloud systems automatically control and optimize resource use
by leveraging a metering capability at some level of abstraction appropriate to
the type of service (e.g., storage, processing, bandwidth, and active user
accounts). Resource usage can be monitored, controlled, and reported, providing
transparency for both the provider and consumer of the utilized service.
7. Service models cloud
Infrastructure as a service (IaaS)
Platform as a service (PaaS)
Software as a service (SaaS)
Network as a service (NaaS)
8. Infrastructure as a service (IaaS)
In the most basic cloud-service model, providers of IaaS offer computers - physical or (more
often) virtual machines - and other resources. (A hypervisor, such as Xen or KVM, runs the
virtual machines as guests. Pools of hypervisors within the cloud operational support-
system can support large numbers of virtual machines and the ability to scale services up
and down according to customers' varying requirements.) IaaS clouds often offer
additional resources such as a virtual-machine disk image library, raw (block) and file-based
storage, firewalls, load balancers, IP addresses, virtual local area networks (VLANs), and
software bundles.[52] IaaS-cloud providers supply these resources on-demand from their
large pools installed in data centers. For wide-area connectivity, customers can use either
the Internet or carrier clouds (dedicated virtual private networks).
To deploy their applications, cloud users install operating-system images and their
application software on the cloud infrastructure. In this model, the cloud user patches and
maintains the operating systems and the application software. Cloud providers typically bill
IaaS services on a utility computing basis[citation needed]: cost reflects the amount of resources
allocated and consumed.
Examples of IaaS providers include: Amazon EC2, AirVM, Azure Services
Platform, DynDNS, Google Compute Engine, HP
Cloud,iland, Joyent, LeaseWeb, Linode, NaviSite, Oracle Infrastructure as a
Service, Rackspace, ReadySpace Cloud Services, ReliaCloud,SAVVIS, SingleHop,
andTerremark
Cloud communications and cloud telephony, rather than replacing local computing
infrastructure, replace local telecommunications infrastructure withVoice over IP and other
off-site Internet services.
9. In the PaaS model, cloud providers deliver a computing platform typically
including operating system, programming language execution environment,
database, and web server. Application developers can develop and run their
software solutions on a cloud platform without the cost and complexity of
buying and managing the underlying hardware and software layers.With
some PaaS offers, the underlying computer and storage resources scale
automatically to match application demand such that cloud user does not
have to allocate resources manually.
Examples of PaaS include: AWS Elastic Beanstalk,Cloud
Foundry, Heroku, Force.com, EngineYard, Mendix, OpenShift,GoogleApp
Engine,Windows Azure Cloud Services and OrangeScape.
Platform as a service (PaaS)
10. [In the SaaS model, cloud providers install and operate application software in the
cloud and cloud users access the software from cloud clients. Cloud users do not
manage the cloud infrastructure and platform where the application runs.This
eliminates the need to install and run the application on the cloud user's own
computers, which simplifies maintenance and support. Cloud applications are
different from other applications in their scalability—which can be achieved by cloning
tasks onto multiple virtual machines at run-time to meet changing work
demand.[53]Load balancers distribute the work over the set of virtual machines.This
process is transparent to the cloud user, who sees only a single access point.To
accommodate a large number of cloud users, cloud applications can
be multitenant, that is, any machine serves more than one cloud user organization. It
is common to refer to special types of cloud based application software with a similar
naming convention: desktop as a service, business process as a service, test
environment as a service, communication as a service.
The pricing model for SaaS applications is typically a monthly or yearly flat fee per
user,[54] so price is scalable and adjustable if users are added or removed at any
point.[55]
Examples of SaaS include: Google Apps, Microsoft Office 365, Onlive, GT
Nexus, Marketo, Casengo andTradeCard.
Software as a service (SaaS)
11. [A category of cloud services where the capability provided to the cloud service
user is to use network/transport connectivity services and/or inter-cloud
network connectivity services.NaaS involves the optimization of resource
allocations by considering network and computing resources as a unified
whole.
Traditional NaaS services include flexible and extendedVPN, and bandwidth on
demand. NaaS concept materialization also includes the provision of a virtual
network service by the owners of the network infrastructure to a third party
(VNP –VNO).
Network as a service (NaaS)
15. Private cloud
Private cloud is cloud infrastructure operated solely for a
single organization, whether managed internally or by a
third-party and hosted internally or externally. Undertaking
a private cloud project requires a significant level and
degree of engagement to virtualize the business
environment, and requires the organization to reevaluate
decisions about existing resources.When done right, it can
improve business, but every step in the project raises
security issues that must be addressed to prevent serious
vulnerabilities.
They have attracted criticism because users "still have to
buy, build, and manage them" and thus do not benefit from
less hands-on management, essentially "[lacking] the
economic model that makes cloud computing such an
intriguing concept"
16. Public cloud
Public cloud applications, storage, and other
resources are made available to the general
public by a service provider.These services
are free or offered on a pay-per-use model.
Generally, public cloud service providers like
Amazon AWS, Microsoft and Google own and
operate the infrastructure and offer access
only via Internet (direct connectivity is not
offered)
17. Hybrid cloud
Hybrid cloud is a composition of two or more clouds (private, community or
public) that remain unique entities but are bound together, offering the benefits
of multiple deployment models.Such composition expands deployment options
for cloud services, allowing IT organizations to use public cloud computing
resources to meet temporary needs.This capability enables hybrid clouds to
employ cloud bursting for scaling across clouds.
Cloud bursting is an application deployment model in which an application runs
in a private cloud or data center and "bursts" to a public cloud when the demand
for computing capacity increases. A primary advantage of cloud bursting and a
hybrid cloud model is that an organization only pays for extra compute
resources when they are needed.
Cloud bursting enables data centers to create an in-house IT infrastructure that
supports average workloads, and use cloud resources from public or private
clouds, during spikes in processing demands.
By utilizing "hybrid cloud" architecture, companies and individuals are able to
obtain degrees of fault tolerance combined with locally immediate usability
without dependency on internet connectivity. Hybrid cloud architecture
requires both on-premises resources and off-site (remote) server-based cloud
infrastructure.
Hybrid clouds lack the flexibility, security and certainty of in-house
applications. Hybrid cloud provides the flexibility of in house applications with
the fault tolerance and scalability of cloud based services.
18. Community cloud
Community cloud shares infrastructure
between several organizations from a specific
community with common concerns (security,
compliance, jurisdiction, etc.), whether
managed internally or by a third-party and
hosted internally or externally.The costs are
spread over fewer users than a public cloud
(but more than a private cloud), so only some
of the cost savings potential of cloud
computing are realized.