System maintenance phase is often the most expensive phase of the software development life cycle.

Select from the following list four (4) topics and discuss. Use only 50-words max per topic to discuss and present your answer.
Define and describe total cost of ownership. List at least 10 items to consider when determining a data center’s total cost of ownership.
Define and describe a capital expense. How are capital expenses different from operational expenses?
Define and describe economies of scale and provide a cloud-based example.
Define and describe “right sizing” as it pertains to cloud computing.
Define Moore’s law and discus how it might influence cloud migration.
Given company revenues of $2.5 million and expenses of $2.1 million, calculate the company’s profit and profit margin.
Compare and contrast functional and nonfunctional requirements and provide an example of each.
Discuss why a designer should avoid selecting an implementation platform for as long as possible during the design process.
Discuss various trade-offs a designer may need to make with respect to nonfunctional requirements.
Discuss why the system maintenance phase is often the most expensive phase of the software development life cycle.