Web Services, Cloud Computing

In many cases like this one, an organization should always have a backup strategy. Some of the actions that I would take would be performing a backup on a USB flash drive which will be kept in a safe place with the office. As for the profit and loss statements, cash flow statements and other pertinent files will be updated daily, backed up and performed daily. If files are needed to be shared, a cloud backup system can be implemented. A disaster recovery plan should be set forth with three different sites

Within the past 10 years our societies technological advantages have been somewhat space age like, even alien like characteristics. Technologies, which ten years ago only existed in our dreams but yet, have become reality. Things like, the revolutionary iPhone and its almost seamless touch-screen tech; as well as the new advancements in our cultures most prized possession, The Internet. In this subject-based paper, I will take a closer look into a fairly new emerging technology, which is simply referred to as…Cloud Technology. The synopsis will cover, what and how cloud technology works, its

Cloud computing offers services to users based on on-demand self-service, broad network access, measured service, resource pooling and rapid elasticity; These characteristics promise a faster time for implementation, lower cost, superior scalability and a better end user satisfaction. These services are delivered in models known as Software As A service (SaaS), Platform As A Service (PAAS), and Infrastructure As A Service (IAAS). The first layer which is the Software As A service (SaaS) is the layer in which software applications are delivered to end users. Below is the Platform As A Service (PAAS) layer which offers a platform on which applications can be developed. The lowest layer is the Infrastructure As A Service (IAAS) layer, in this layer the physical servers and network infrastructure is offered as a service. These services can be deployed throughout the internet (Public Cloud Computing), on the intranet infrastructure, (Private Cloud Computing), in a shared community of private networks (Community Cloud Computing), or a hybrid of both (Hybrid Cloud Computing). The service deployment models are [8]:

According to Lawrence Shawa, "a number of organizations I have spoken to have expressed concern about how secure their data is that is hosted in the cloud. There is sense of control that is taken from them making the organizations feel vulnerable" (Collection 2:1) Companies naturally feel a strong sense of obligation to protect their customers. Additionally, they may lose business if they have a reputation for compromising customer security.

Resource Pooling-implying that the resources provided is coming from a shared pool. Rapid Elasticity-implying the resource provision can both grow and shrink depending on the demand of the consumer. Measured Service-we are at least aware of the resources being consumed and possibly the basis for metrics or charge back. Broad Network Access-resources are available from an easily consumable interface, such as a web browser. Next the business takes supported business processes such as applications, platforms and infrastructure “off-site” and replaces them in part/total with any of the 3 on-demand cloud service models: SAAS (Software as a Service)-applications or services to support business processes with all essential characteristics. PAAS (Platform as a Service)-technology platform to allow applications or services to run against. IAAS (Infrastructure as a Service)-service and storage available with all essential characteristics. Finally, the business chooses how these cloud services are delivered to the organization via 4 deployment models: Private Cloud- cloud infrastructure is owned or leased by a single organization and operated solely for that single organization. Community Cloud- cloud infrastructure shared with a finite number of organizations. Public Cloud- cloud infrastructure is consumed outside of a data center and is part of resource pool shared by any number of

Question 1. What is the most appropriate Cloud Deployment model (or combination) for BPI (Public, Private, Community, or Hybrid)?

Since the 2000s, cloud computing has become the most phenomenal IT service in the IT industry. It changed the whole IT industry upside down. Cloud computing is becoming the most popular and key service that is offered by many IT service providers including, Amazon, Google, Salesorce.com. (Leong, 2014) These companies top specialists in cloud computing. In addition to cloud computing,, leading traditional ERP service providers, such as IBM, SAP, Oracle, Microsoft, and Net Suite (Li, 2014) also provide their ERP software as Software as a Service.

Cloud computing includes three service models, it is important to differentiate between them because the service provided is not the same and they do not address the same users. The three service models are:

In UDDI registry there are innumerous numbers of functionally same Web Services (WS), to select the most qualified and relevant Web Service according to a client requirement is an arduous task. Web Services are normally same in function but their Quality and performance vary as per service provider. Key word search doesn’t provide the best result for the customer. The quality can be analyzed by 10

Reaching the point where computing functions as a utility has great potential, promising innovations we cannot yet imagine. Customers are both excited and nervous at the prospects of Cloud Computing. They are excited by the opportunities to reduce capital costs. They are excited for a chance to divest themselves of infrastructure management, and focus on core competencies. Most of all, they are excited by the agility offered by the on-demand provisioning of computing and the ability to align information technology with business strategies and needs more readily. However, customers are also very concerned about the risks of Cloud Computing if not properly secured, and the loss of direct control over systems for which they are nonetheless accountable. To aid both cloud customers and cloud providers, CSA developed “Security Guidance for Critical Areas in Cloud Computing”, initially released in April 2009, and revised in December 2009. This guidance has quickly become the industry standard catalogue of best

Web service is a communication between two electronic device.it provides network address over the web. web service is also called as utility computing.

Web Services describe an area of computing which define the method of communication used by machines to interact with each other over the internet. A web service is a method for applications that are written in contrasting languages to be able to transfer data between one another without any problems. Two kinds of Web Services are SOAP (Simple Object Access Protocol) and REST (Representational State Transfer).

Platform As A Service (PAAS): provides clients with the capability of building and deploying services onto the cloud infrastructure such as operating systems, servers, storage and network without the complexity and cost of purchasing and managing the underlying software and hardware [5]. It also offers facilities for application development, application design, deployment, testing and hosting. That includes the scope of application services such as web service integration and marshalling, team collaboration, storage, database integration, scalability, security [5]. There are two dominant modes of PAAS service and they are as follows [6]:

Software as a Service is where your application and data are both in the same place. For e.g. Google Docs, Salesforce, etc. Any service which has its application and data in the same location and which provides you APIs with which you can interact. For e.g. Let’s say your

Azure provides Software as a Service (SaaS) and Infrastructure as a Service (IaaS). Azure support different programming languages, tools and frameworks.