Legacy Applications Case Study

To overcome the above issues, use a hybrid cloud infrastructure [2]. It combines public cloud, private cloud and dedicated servers (Figure 1), which works in one platform. It satisfies the purpose of different businesses.

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]:

Cloud Services and Virtualization continue to grow in popularity but are they right for your business? These technologies can reduce overhead operation costs, improve utilization of resources and provide a level of flexibility to the organization’s Information Technology (IT) system. Understanding that these technologies do and their pros and cons is the foundation of choosing the right features for your business. Cloud services offer three types of services; Software as a Service (SaaS), Platform as a Service (PaaS) and Infrastructure as a Service (IaaS) to meet the software, infrastructure needs of a business and provides them on a lease type of payment plan. Virtualization has three types of server virtualization, Full virtualization, Para-Virtualization and OS level Virtualization. Similar to Cloud services Virtualization types have features which may suit one business over another. Comparing the features provided by these technologies to total ownership of the IT system is also crucial in selecting the best services for your company as there can be an array of combinations of services contracted and internally owned features. While the perks of these technologies can be beneficial for an organization they should be carefully researched and tailored to the business strategic goals for

One possible risk is that our user base could grow to a size where our current number of servers would no longer be sufficient. Overburdened servers are problematic because it could negatively affect our customers who may disconnect and experience slow

If someone had taken the time to explain that the old software would no longer be supported by the vendor, and that new software was necessary to meet the needs of your customers, then your reaction (based on this awareness) would likely be very different:

Legacy systems tend to provide a significant value for companies. This is due to the fact that they still meet user needs and are capable of capturing vital business logic. The cost of replacing these legacy systems with a system designed completely from scratch is much too high, but reusing a legacy system can be equally difficult due to the fact that legacy system reuse comes with its own set of obstacles like platform, documentation, and architecture issues. Cloud Computing has come along and it provides the promise of significantly lower costs with enhanced performance capabilities

Change is always going to happen. If the program at work up changes to a more updated version and someone refuses to update they may lose their job to someone who would use the updated program.

Let’s discuss some other characteristics so that you can decide which cloud option will work for you –

Cloud computing has advanced as of late. The new universe of the hybrid cloud is a situation that utilizes both private and public cloud administrations. Organizations understand that they require a wide range of sorts of cloud benefits with a specific end goal to meet an assortment of client needs.

As in the current task this XYZ Company wants to do changes in the game application development for to develop games to the market. This XYZ Company developed previously some games by using this application for the customers but because of the market changes and competition with the other game application developer companies this XYZ company want to do the changes which will be not change for the future also, so that this application will be stand out in the crowd in order to meet their requirement and for their necessary needs.

A consultant will discover and analyze relevant details for each application such as design, platform, support model, integration points, and other relevant factors and assign values to each. These values will be weighted and combined to provide a score for each application regarding its suitability to operate in a hybrid cloud environment. Also, a financial analysis will be performed to provide a cost comparison between on-premise hosting and the cost of various cloud providers that will allow Customer to understand the cost impacts of the decision to maintain an application on-premise vs in the cloud.

SaaS applications offer wide range of configuration options and development environments that allows clients to set up their own additions and modifications.

The term legacy system has distinct meanings for different individuals. For numerous people, it describes archaic mainframe or dumb-terminal software programs from the 1970s and 1980s (Weber, 2006). To other individuals, it may infer the client/server applications from the 1990s or web applications from the late 1990s (Weber, 2006). The chief point is that each one of these distinct architectures presents different risks that must be thoroughly understood and properly managed (Weber, 2006).

Further, they might not even release any updates for long durations which will make the software old and obsolete. This will damage the company more than it can assist. On the other hand, custom software application can be updated whenever the client seems like. Their degree can be decided according to the customer's requirements and their spending plan.

If you build an application in the cloud, chances are it is a distributed application. Distributed applications have a number of characteristics that need to be considered carefully. Containers assist developers in making software portable. The software looks the same everywhere you deploy and run it. Also developers will not need to