Friday, February 28, 2020

Final exam case study's answers Study Example | Topics and Well Written Essays - 1250 words

Final exam 's answers - Case Study Example The marine project is likely to boost tourism by transforming Queensland into a home of Australia’s largest tourism infrastructure development that will lure both tourists and international investment. Therefore, the research problem in this case study is the feasibility of the Queensland Government Multibillion Marine project, its allied socio-economic benefits, and impacts, especially to the environment and the residents. Purpose statement The purpose of this research is to establish the viability of the Broadwater Marine Project proposed by the Queensland Government and its potential impacts on the tourism and construction sectors, the environment and the livelihoods of the residents adjacent to the Broadwater. Significance of the Research This research is significant because these findings will provide justifiable evidence concerning the viability of the Broadwater Marine project, and its potential impacts on the environment and the residents of the Spit. This information will be useful for all the stakeholders in the Broadway Marine project because it will provide a formidable foundation for planning to maximise the benefits while limiting the impacts on the environment and the residents of the Spit. ... What are some of the socio-economic benefits of the Broadwater Marine Project to both the government and the residents of the Spit? d. What are some of the potential environmental and social impacts of the Broadwater Marine Project? e. How can the social and environmental negative impacts of the Broadwater Marine Project be reduced, and where possible eliminated all together? Q.2 1) The Research Philosophy The research philosophy that best fits the research questions and objectives is Positivism, an ideology that is characterised by hypothesis/theory testing through measurement of observable social realities. According to the positivists, the social world exists objectively and independently, knowledge is viable only is it is based on the observable reality and that universal theoretical models explaining cause-effect relationships are generalizable and can be used to predict outcomes. The research objectives can be best achieved if the research is guided by values of the positivism philosophy such as reason, truth and validity; the research will focus purely on observable facts. The research data will be gathered through direct observation and experience, measured empirically using quantitative methods such as statistical analysis, surveys and experiments. The viability of the Broadwater Marine project, its perceived socio-economic benefits to the Queensland Government and the Spit residents, and its potential environmental and social impacts can be measured empirically. Positivism provides the relevant tools for data gathering i.e. through observation and experience, measuring using quantitative methods- surveys and experiments, and statistical analysis; given the vast scope of this research, it must be

Wednesday, February 12, 2020

Quality of Service (QoS) in Service Oriented Architecture (SOA) Research Paper

Quality of Service (QoS) in Service Oriented Architecture (SOA) Applications - Research Paper Example The current levels of available reliability and performance will be assessed for their application to real life business applications. Keywords – Quality of Service, Service Oriented Architecture, QoS, SOA, reliability, performance, mathematical model I. Introduction Service oriented architecture (SOA) environments have gained popularity in recent years given their inherent flexibility and reusability. The typical SOA is structured around methods that promote software creation as interoperable services [1]. The various services used to construct a SOA are well-defined business functions. These business functions are construed as various software building blocks that can be used repeatedly to promote decreased development time and debugging effort [2]. Currently the SOA model is finding great appeal for web application development as well as grid computing [3]. The current speed of SOA architecture development indicates that SOA applications will dominate the future avenues of development. II. Quality of Service (QoS) and Service Oriented Architecture (SOA) The most important method of describing a SOA’s characteristics in general is the quality of service (QoS) it offers [4]. The current development of the QoS concept sees divergence and some commonality depending on the various fields that employ SOAs. Most web based application SOAs require real time transfer rates such as for fiscal information transfer or multimedia applications. In contrast, other areas such as mobile grid computing see SOA QoS as a set of non-functional outputs that guarantee reliability [5]. The existing disparity between QoS definitions for SOA implementations in networking, web applications and grid computing mean that QoS needs to be defined in a more comprehensive yet unambiguous fashion. Most previous definitions of QoS promote the idea that only the best possible service levels can be classified as QoS [6]. However, more modern definitions of QoS contend that any leve l of services that meet user requirements can be classified as QoS for that particular application [7]. QoS can also be compared to Service Level Agreements (SLAs) where the user and the service provider agree upon acceptable levels of performance parameters such as functionality, costs etc. QoS for SOAs can be classified in the form of â€Å"request, specification, provision and negotiation† of some particular network features [7]. A typical SOA application may require QoS for the latency, the error rate, bandwidth, availability as well as the network security [8]. However, these characteristics alone should not be seen as describing the entire umbrella for QoS for SOAs. Instead, these characteristics form some of the characteristics of QoS for SOAs. Moreover, the QoS agreements would tend to vary from application to application in SOA depending on user requirements, functional expectations and non-functional expectations of the user [9]. For example, users accessing multime dia content through SOA applications would emphasize more on bandwidth than users dealing with defense applications through SOA who would emphasize more on reliability and security [10]. The classification method provided above for QoS in SOA applications is limited in scope. The QoS may be broken down into smaller metrics for further QoS classification. For example, jitter in network connection could be treated through consecutive difference in jitter or through the average jitter. The results from these metrics would tend to differ