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6.Results and Discussions
ОглавлениеOur expert panel consisted of seven experts—five team members acting as executives from BMF LLC and two external cloud service consultants. All seven members completed the pairwise comparisons on all three levels.
We conducted two rounds of analysis on the results from the HDM tool. In the first round, we took into account the inputs from the seven experts on all three levels of the pairwise comparisons. Since we have explanations on our Mission, Objectives and Criteria in the online HDM tool, we assumed that all the experts knew the company’s needs, as well as the technical aspects of all the different types of cloud services.
The results of our first-round analysis show that Security is the company’s top concern, among all of its objectives, when migrating its information technology to cloud servers. Among its criteria, Protection, Scalability and Service Charge were ranked as the top three. These are the criteria the company should pay close attention to when making decisions. Also, IaaS was the preferred cloud service with a score of 0.35. SaaS came in second with a close score of 0.34. Even though IaaS was the winning choice of cloud service, there is no major differentiation between IaaS and SaaS because of their close scores. This makes the decision inconclusive.
Considering the suggestions and recommendations during our class presentation, we conducted a second round of analysis on the model and pairwise comparison data. In this round, we separated the inputs of the team members and the external experts: inputs from the five team members were used for Level 1 and Level 2 comparisons, while the inputs from the two external experts were used for Level 3 comparisons.
The reason for the second round of analysis is that the executives understand the company’s Mission, Objectives and Criteria under each objective. They are not technical experts and may not be able to make sound decisions on the third level of alternatives. As for the external cloud experts, although they are versed in the technical details of the three types of cloud service alternatives, they are not familiar with the inner workings of the company since they are not members. The results of the second round of analysis show that Security remains the top concern of the company when migrating to the cloud. Scalability, Protection and Service Charge again ranked as the top three among all the criteria, albeit with minor differences in actual weights. IaaS came out as the winner again with a score of 0.38, while SaaS came in as the second choice with a score of 0.32. The difference between the IaaS and SaaS strategies is more significant as compared to the first round. IaaS is the clear winner. We believe that the result from the second round of comparison is more convincing.
Detailed HDM model comparison results and our analysis are discussed in the following sections of this report.