1. Consider the following data structure and answer the following questions

Customer = Customer ID +

Customer name +

Building

Building = Building name

Street address

City

State

Zip

Technician = Technician ID +

Technician Name +

Building +

{Problems}

Problem = Problem ID +

Problem Definition +

Status +

Customer +

{Technician}

Status= [created|assigned|working|solved|reassigned]

a. Describe the difference between a structure and an element using the above diagram.

b. Choose two elements from the above diagram and define the elements in terms of (base/derived), element length, type of data, validation criteria, and defaults.