How will a firm with various branches and operating systems talk to each other?

When people talk about a "three-tier architecture," what do they mean exactly?

How interdependent are systems, and what does that word really mean?

What are the different types of deployment models and service models? When is it appropriate to use each of the models, both deployment and service? What are the benefits of cloud deployment models versus on-premises models? What are the drawbacks of cloud deployment models versus on-premises models? What are the risks and benefits of the adoption of the different cloud computing deployment models? What are some of the organizational issues that should be considered? What are some of the technical issues that should be considered? What differentiates big data from structured data to stakeholders? Compare and contrast preprocessing methods for big data versus structured data. How is big data collected in comparison to structured data? How is big data stored in comparison to structured data? How the scale (volume, variety, and velocity) of big data affects data analysis methods? How does the scale of a data set affect its ability to be processed by conventional methods? How does the…