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Question: Discuss About The Software Model Infrastructure Of Computing? Answer: Introduction The combination of software model and the infrastructure of the computing devices that provides universal access to the polls that are shared in the configured resources such as servers, applications, services, computer networks and storages is known as Cloud computing (Liu et al., 2015). This cloud computing can be done by very less management effort that is done with the help of internet. Sharing of the resources, storing online information and computing them are the work of cloud computing process that is based on internet. Some particular functions are performed by cloud computing that does not need to invest and purchase the resources of the company. The processing and storing of data of the user or enterprise that has various computing abilities are done by Cloud Computing. This is done in clouds that are owned privately or other third party server that are located different places so that the data are accessible more reliably and efficiently. Cloud Computing depends on resourc e sharing to get economy of scale and coherence. This report gives an idea about the IaaS approach of Webbs database to cloud and a PaaS approach of the enterprise. Comparison of IaaS and PaaS is elaborated describing its advantages and disadvantages of both. Lastly such an approach is recommended that is best suitable for the Webb Store that has data centers in Brisbane, Melbourne and Sydney. Infrastructure as a Service (IaaS) Approach to Change Webbs Database to Cloud To change the Webbs Store to cloud using the IaaS approach, the Webb store to make an application and upload all the software of the enterprise that are needed to be run on cloud. The VM is uploaded to host environment (Bruneo, 2014). If reengineering of the application is not possible for Webb store, the approach of IaaS is the best solution for Webb Store. The technology domain of Webb Store is considered while changing its system to cloud. Changing its infrastructure to IaaS, the Webb Store must check its financial part first. Itherwise the enterprise may face problem in future. The virtual machines are fully accessed by the approach of IaaS. The dynamic requirement of resources and the amount of data stream are essential to change the infrastructure to IaaS. Platform as a service (PaaS) Approach to Change Webbs Database to Cloud For the development of applications through internet by accessing hardware and software is a model of PaaS. The efficiencies that are needed to deliver and develop the software is provided by the Webb Store. This will enhance them to make a structure that is based on cloud application and discharge the structure to a scalable and business environment (Pahl, 2015). An Azure Web Application and an Database of Azure SQL is needed to configure in order to change the Webb database to PaaS approach cloud. The VM server has to be accessed by the enterprise (Kavis, 2014). A comparative study is done between the IaaS and PaaS approach. Benefits of PaaS and IaaS approach PaaS Approach IaaS Approach Leasing of software platform is essential, not the resource. There is a full control over the machines of the customer. Own software is needed to make it run in this approach Anything can be run on the VM of the customer. Accessing of software is under control. Processing in the customers VM is fully controlled. Support for integration is improved Integration is simplified with the help of enterprise infrastructure. Drawbacks of PaaS and IaaS approach PaaS Approach IaaS Approach There is no control over the accessing of data and the Virtual Machine of the user. The VM of the user is fully accessible. No involvement of user is needed for backup. User is responsible for their backups. Shares platform with many number of users. Confined within the user. Recommendations for Webb Store As PaaS approach enables the user to make its own software and application, the Webb Store is suggested to use this approach as to change its database to cloud. This Paas approach has resource and storage sharing efficiency. It can be configured very easily, scalable and cost effective. The PaaS Approach is also needs less time consumption. Conclusion The definition of cloud computing is elaborated in this report. Two methods of cloud computing has been discussed which includes PaaS and IaaS Approach. The consecutive results of using both the approaches in the Webb Store have been discussed. A comparative study of advantages and the disadvantages of IaaS and PaaS are also studied and the best approach is recommended for Webb Store in the recommendation section. References Bruneo, D. (2014). A stochastic model to investigate data center performance and QoS in IaaS cloud computing systems.IEEE Transactions on Parallel and Distributed Systems,25(3), 560-569. Kavis, M. J. (2014).Architecting the cloud: design decisions for cloud computing service models (SaaS, PaaS, and IaaS). John Wiley Sons. Liu, Y., Dong, B., Guo, B., Yang, J., Peng, W. (2015). Combination of cloud computing and internet of things (IOT) in medical monitoring systems.International Journal of Hybrid Information Technology,8(12), 367-376. Pahl, C. (2015). Containerization and the paas cloud.IEEE Cloud Computing,2(3), 2