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Cloud computing
Abstract
Cloud computing is a computing paradigm whereby there is a large pool of systems connected to private or public networks, to offer dynamic and scalable data storage and application infrastructure. Cloud computing technology offers resource sharing in a pure plug and plays model that significantly simplifies infrastructure (Sunita & Prachi, 2013). It has advantages in light of the ease of use and cost effectiveness. The benefits the model offers far much supersede the issues of concern by other people such as security and vendor lock-in. The paper’s aim is to provide a means of understanding Cloud computing, the providers, significant differences among providers and a recommendation on the most appropriate provider. The recommendations are line with Comptech Inc.

Introduction
Cloud computing is the offering of computing services over the Internet. The cloud services allow individuals and enterprises to utilize software and hardware managed by third parties at remote locations (Rackspace.com, 2011). Some examples of the offered cloud services include social networking sites, online businesses applications, online file storage, and webmail. The model offers access to computing resources and information from any place in the globe that a network connection is available. It provides a pool of resources for sharing including networks, specialized corporate and user applications, and data storage space. Some of the characteristics of cloud computing include resource pooling, on-demand self-service, rapid elasticity, broad network access and measured service. Below is an evaluation of four companies that offer the cloud computing services.

Microsoft Cloud computing services
Microsoft offers the infrastructure for a Service, which allows you to get on-demand computing and storage to scale, host as well as manage applications and services (Microsoft.com, n.d). Through this IsaaS service, it is possible for any users to scale with ease and meet any infrastructure needs. Microsoft also offers the Platform as a Service (PaaS) capability through the Window Azure platform. That is a fully relational database and a web-based service that offers security-enhanced connectivity, as well as federated access control for applications. Another cloud computing service by Microsoft is Software as a Service (SaaS). These services are subscription based hosted and on-demand services to end users. Examples are Business Productivity Online Suite, the Exchange Hosted Services, Office Web Apps and Microsoft Dynamics CRM Online.

IBM cloud computing services
IBM offers IaaS services such as Amazon Elastic Compute Cloud, IBM SmartCloud Enterprise; IBM SmartCloud managed backup and Enterprise+ (Coyne et al., 2014). The RC2 allows researchers to get cloud computing infrastructure and application including infrastructure resources for their projects. All the other IaaS services provide storage, processing and network in an elastic fashion. They allow you as a user to run your chosen software, operating systems, and other application as they take control of the underlying cloud infrastructure. IBM also offers PaaS services through the following PaaS models such as Amazon Relational Database Service, IBM SmartCloud Application Services, and Microsoft Window Azure. The services provisioned by the models are development runtime environment, middleware, portal servers, database servers and application servers. They offer a platform for the users to provision their applications and carry out platform development activities. The users have no need for managing the underlying cloud infrastructure such as network, OS, and storage. They, however, have control over the configuration of those services.

IBM also offers SaaS services through cloud models like PeopleSoft HR, IBM Payment Systems, and Google Apps for Businesses and IBM SmartCloud for Social Businesses. The cloud user can connect to the application running at a remote location. The management of the cloud infrastructure, the application, and the platform on which the application is running is the responsibility of the cloud service provider. IBM also offers BPaaS (Business process as a service) services. The examples of BPaaS commercial implementations are IBM Blueworks Live, Google Adsense and IBM Care Solution for the healthcare market. The BPaaS integrates software and workflow elements to deliver end-to-end business processes.

Akamai Cloud computing services
The EdgeComputing of Akamai enables organizations to deploy and execute JEE apps or their related components onto the Akamai network (Akamai.com, 2009). The service is useful by the Sony Company. Another cloud service is the Akamai NetStorage that integrates geographically distributed replication of content with the intelligent global management of traffic and failover. The service is fully controlled and has a basis on pay-per-user that offers superior performance, scalability, and reliability, subsequently eliminating in-house infrastructure.

Google’s cloud computing services

Google combines many applications and provides a number of services to cloud users. That makes the company one of the best CSPs because of the way it makes it easy for users to accomplish their tasks (Youssef, 2012) easily. Among the services provided by Google are Google Docs, Gmail, Picasa, Google Analytics, and Google Ad Words and Ad Sense. Gmail services offer users 25GB storage with less spam and mobile access. It also includes chat applet that offers storage of conversations in the form of email. Google Docs service enables users to create documents and store them on the cloud servers. The services are accessible from anywhere at any time. The Google analytics service allows monitoring of traffic that is coming to a website. Picasa service is useful in exhibiting product uploading of images in the cloud. The Ad and Ad Sense are advertising services.

Recommending providers
I recommend the Google and Microsoft cloud computing services. I am especially interested in the SaaS services as it allows the CSPs to have full control over running, maintenance of the OS and software applications of the virtual resources. The customer sees the SaaS model as web-based application interface where they can access the services through a web browser. The host applications such as Google Docs, Gmail, Office Web Apps and Microsoft Dynamics CRM Online are accessible to users through various devices. The devices include laptops, cell phones, and iPads. SaaS has an advantage in that customers do not have to buy licenses, upgrade, install, run or maintain the software on their computers. The SaaS services also provide the advantage of multi-tenant efficiency, scalability, and reconfigurability.

I recommend the two providers for SaaS services as they are popular in the computing market and their services have wide application, meaning that they are very cheap. The two companies have dominated the software and hardware market over time, and their services and products are usable across the globe. That is why I recommend them to provide the computing services for Comptech Inc. They will help the company to save costs as their cloud services are cheaper and convenient besides being applicable across many platforms and accessible through various devices. Comptech has the confidence of reliability of the cloud services from the two companies as the companies have a good establishment, and they continue to improvise those services from time to time.

Of the two providers, Google is preferable compared to Microsoft because of its well establishment and the cost of services. For instance, it offers 25GB of storage for free on Gmail and the Google Docs service is almost free. It is in wide usage and a trusted company that has most of its services useful for all applications and most devices. Google has a well establishment as it has been operational for many years. That fact gives Comptech Inc the confidence that the company’s services are reliable and sustainable. Many of the services that we use nowadays like Gmail, Google Docs, Picasa and Ad Sense are from Google. Thus, Google cloud computing services will help Comptech to save more money in utilizing its cloud services.

Abstract
A business plan is a document used for planning out specific details about a business. A comprehensive business plan has three sections- business concept, financial and marketplace. The fundamental purpose of a business plan is to define what the business is or what the company intends to be over time. A business case captures the reasoning for starting a task or a project.. A compelling business case sufficiently captures both the quantifiable and unquantifiable characteristics of a proposed project. A business case and business plan are elementary documents in business or a company. The two business documents differ in terms of the procedure of developing them and the intent of developing.

Introduction
Business Plan
A business plan is a document used for planning out specific details about a business. A business plan can range in size from a simple few sentences to more than 100 pages with formal sections, a title page and a table of contents. A typical business plan has an average of 15-20 pages. A comprehensive business plan has three parts- business concept, financial and marketplace. The three sections are broken down into seven components. These components include the overview of the plan, a description of the new business, design and development, market strategies, competition analysis, operations and management, and financial information. The main purpose of a business plan is to define what the business is or what the company intends to be over time. Clarifying the purpose and direction of someone business allows the person to understand what needs to be done for the business forward movement. Clarifying consists of a mere description of the business and its services or products (Wassinger et al. 2011)

Business Case
A business case captures the reasoning for starting a task or a project. It is usually presented in a well-structured written document, sometimes a business case comes in the form of a short verbal presentation or argument. The purpose of a business case is that, whenever resources such as effort or money are consumed, they should be in advocate of a particular business need. A compelling business case sufficiently captures both the quantifiable and unquantifiable characteristics of a proposed project. A business case depends on the business volume and business attitude (Belkin et al. 2000) Business cases can range from complete and highly structured, as required by formal project management methodologies, to informal and brief. Information found in a formal business case could be the background of the project, the expected business profits, and the options considered also the expected costs of the business, a gap analysis and expected risks of the project. A business case is of great importance because it helps decision-makers ensure the proposed initiative will have relative and value priority compared to alternative actions based on the goals and expected profits laid out in the business case. Also, a business case helps the decision makers ensure the performance found in the business case are identified to be used for the proactive realization of the business and behavioral change (Larriveee, 2012).

Comparison and contrast: Business Plan and Business case
A business case is organized around a decision or an action, to address business case questions, the questions in a business case contrast with the focus for the business plan. A business plan address questions such as what will the business look like in a year or three years? How does the business project get to those results? What sales, revenues, and margins can we expect the coming year? How many years will it take this business project to become profitable? Sometimes confusion arises about the differences between the business plan and business case and the ways they complement each other. In brief, a business plan is organized around the business association. The business case is held to address questions about the single decision or action. Whereas a business plan asks what the business project will look like, the business case asks: what will be the outcome in business terms if we take this action or that? In contrast to the business plan questions, the business case addresses questions like: What will be the financial outcome if we choose x or do y? What important non-financial consequences can we expect in either case? What will we require a capital budget next year if we decide to buy the service cars instead of leasing them? (Larriveee, 2012)

A business case is organized around a single decision or a single action and its alternatives while a business plan is organized around an organization or the whole business. The plan may cover a single manufactured good or product line or the whole enterprise. A business case predicts cash flow outcome and important non-monetary impacts that follow from the action while a business plan predicts company performance of the organization, especially in the main categories of the income statement. A business plan may include projected pro- forma balance sheets or income statements for future years. A business case focuses on business objectives for the action meant to be accomplished while a business plan focuses on the business goals for the organization. A business case is based on a cost model and profits rationale, intended for the case, and applied to single or more action scenarios while a business plan is based on the business model for the association. Showing how and where the enterprise makes money, same to income statements. A business case measures financial metrics such as IRR, ROI, NPV, TCO, and payback period, based on estimated cash flow. Also include significant non- economic impacts. A business plan measures business performance in terms of sales, profits, margins, and business health by involvement to large balance sheet categories. A business case in a government organization or in a non-profit organization, the scope of the case may include advantages and costs to the people served as well as the business itself. A business plan may focus on budgetary requirements, funding needs, and ability to operate within the financial plan (Larriveee, 2012).

Conclusion
A business case is intended to justify a particular course of action or decision relating to an existing business or organization. For instance, a human resource manager may write a business case for increasing the number of workers while a production manager may write a business case for acquiring a new production machine (Harvard Business School Press 2011). A business plan is generally prepared while starting an enterprise to describe an acknowledged opportunity, the manufactured goods or services to meet the occasion, the target market, and the business strategy to win against competitors. As a business document, a business plan informs the entrepreneur and the financier the monetary requirement and the project performance of the company. The primary purpose of preparing a business plan is to solidify funding by describing to the potential funders not only the practicality of the business opportunity, but also the strategies to assure the success of the company. It is critical to comprehend the use of each of the business documents.