Case Study #$2-$ DefCon #$5$

This case study considers DefCon #$5,$ an organisation that develops IT solutions for Government and Defence. It has around $45$ employees with offices in Canberra and Perth.

DefCon #$5$ is currently using on$-$premise infrastructure but it is considering the migration of at least some of its main systems to the cloud.

The basic architecture of the system is presented below:

The database servers log and archive the data into a database. A tape drive is used to take daily backups of the database. The application server hosts a number of data reporting and monitoring applications. External clients can access the applications via internet.

Select all the correct alternative related to Case Study #$2-$ DefCon #$5,$ considering the user point of view.

Group of answer choices

If the system was moved to the cloud, the user should perceive a few differences in terms of functional requirements. This would happen because the behaviour of systems is dependent on the underlaying infrastructure and therefore will vary when migrated to the Cloud.

If the system was moved to the cloud, the user should not perceive any differences other than a few changes in minor functionalities. This would happen because the behaviour of systems is dependent on the underlaying infrastructure and therefore will vary when migrated to the Cloud.

If the system was moved to the cloud, the user should perceive a few differences unrelated to changes in the quality attributes, such as performance and availability.

This would be the case if changes to the system were not envisaged during the migration and specially if this was a small business because the quality attributes of Clouds are usually better than small business can provide.

If the system was moved to the cloud, the user should not perceive any differences other than related to changes in the quality attributes, such as performance and availability.

This would be the case if changes to the system were not envisaged during the migration and specially if this was a small business because the quality attributes of Clouds are usually better than small business can provide.