Concept and Models for Computational Resources-myassignmenthelp

Question: Discuss about theConcept and Models for Computational Resources. Answer: IaaS Approach IaaS offers the lowest tier of IT resources which as are highlighted as computational resources as they facilitate the functions of digital systems. These resources will include servers (storage), networks, virtual machines and processing facilities. In the current structure, Webbs Stores uses different data centres across Australia to support its operations (Molnar Schechter, 2006). This outcome creates several inefficacies as the access process takes time (delays) due to the procedure involved. Moreover, the company has experienced problems when trying to replicate data to the new datacentre in Auckland. Now, these inefficiencies can be solved by IaaS as it would offer these storage resources across different locations. Furthermore, the supporting infrastructure, networks and processors would also be included in the package. In addition to this, Webbs Stores would have extended system control as they would chose and install the necessary supporting applications such as the operati ng system. Therefore, through IaaS, the company can lease the physical aspects of IT resources (infrastructure) and access them through virtual connections (Capgemini, 2017). PaaS approach In accordance with the name, PaaS offers development environments (platforms) for creating software solutions. This functionality usually coupled with software packages and maintenance of back-end resources such as OS and servers. Therefore, through its operational structure, PaaS is usually seen as an intermediary service that offers both the functionalities of IaaS and SaaS. In its main functionality, PaaS will offer development platforms that will enable users (developers) to draft, create, edit and deploy software packages. This process is often conducted using live portals that enhance collaboration and user integration. On the other hand, PaaS will also deliver front end services such as complete software packages to end-users using browsers and customised portal. Finally, the same service will enable users to manage and maintain back-end resources such as OS, which increases the models functionality to the lower tiers (Cloud-council, 2015). Advantages and disadvantages of IaaS and PaaS IaaS Advantages Disadvantages Pricing options based on the users needs, IaaS offers many pricing options to pay for the resources they wish to acquire. Moreover, the same prices are adjustable to fit any application. Security and privacy problems resources may be lost or compromised when in transit. User control with IaaS, the subscriber establishes and maintain the supporting applications e.g. OS. This attribute increases the control exercised by the users. Extended user involvement maintenance of the supporting systems increases the functionalities of the users. Resilient and flexible resources CSP having different host locations can guarantee the availability of services due to the redundancy procedures available. Furthermore, the same attribute increases the accessibility of resources. High migration costs many resources are migrated at a go which increases the overall cost. Resource efficiency first, consider the cost saved in leasing services and not buying them. Secondly, other resources such as time and power are saved as a third party member maintains the infrastructure. IaaS is a distractive model for business operations (SSH, 2017). PaaS A convenient system development framework multiple applications can be developed using the model Least mature model this outcome lowers its overall application. Cost saving no redundant machines for system development are needed as they are all leased from a CSP. Few CSP this facilitated by its low application levels. Extended collaboration developers and users alike can share the development platform on a real-time basis. Security issues as sensitive data owned by developers is stored in a third partys systems (Patankar, 2015). Recommendation An IaaS model would adequately serve the company as its in high-need of computational resources and not development platforms. Webbs Stores requires storage and processing resources, the main services that are offered by IaaS. Furthermore, in the modern age, the organization may partake in online business (e-business) so as to increase its revenues which require extended system control as financial data and transactions are involved. This extended control can only be provided by IaaS model. References AMTP. (2017). Software as a Service (SaaS). Retrieved 27 April, 2017, from: www.itinfo.am/eng/software-as-a-service/. Azure, M. (2017). Azure Cloud Services. Products, Retrieved 21 August, 2017, from: https://azure.microsoft.com/en-us/services/cloud-services/. Azure, M. (2017). Should I choose cloud services or something else? Documentation, Retrieved 21 August, 2017,from: https://docs.microsoft.com/en-us/azure/cloud-services/cloud-services-choose-me. Capgemini. (2017). Infrastructure-as-a-Service. Infrastructure Services, Retrieved 21 August, 2017, from: . Cloud-council. (2015). Practical Guide to Platform as a service version 1.0. Cloud standards customer council, Retrieved 21 August, 2017, from: https://www.cloud-council.org/CSCC-Practical-Guide-to-PaaS.pdf. Dowling, J. (2017). Introduction to Cloud Computing. Royal Institute of Technology, Retrieved 21 August, 2017, from: https://www.kth.se/social/files/554fa451f276544829be2e5e/9-cloud-computing.pdf. Kazmeyer, M. (2017). The Pros Cons of Google Apps. Chron, Retrieved 21 August, 2017, from: https://smallbusiness.chron.com/pros-cons-google-apps-27349.html. McLellan, C. (2013). SaaS: Pros, cons and leading vendors. ZD Net, Retrieved 27 April, 2017, from: https://www.zdnet.com/article/saas-pros-cons-and-leading-vendors/. Molnar, D., Schechter, S. (2006). Self-Hosting vs. Cloud Hosting: Accounting for the security impact of hosting in the cloud. . Microsoft research. , Retrieved 27 April, 2017, from: https://pdfs.semanticscholar.org/db9f/b8fbc92b74d3d84e02240bf98064170ef23a.pdf. Otey, M. (2017). Features of Google Apps. ITPro Windows, Retrieved 21 August, 2017, from: https://windowsitpro.com/systems-management/features-google-apps. Software, G. (2015). On-premise vs. cloud-based solutions. A dilemma for businesses, Retrieved 27 April, 2017, from: https://www.gfi.com/whitepapers/Hybrid_Technology.pdf.