Using the following example, explain the three different ways you would use to map the subclasses (Technician, Secretary, Engineer) and a super class (Employee) into relations. For each of them, write down all the relations
Employee(Employee_No, Employee_Name, Employee Address, Birth_Date)
Technician(T_Grade)
Secretary(Typing_Speed)
Engineer(Engineer_specialisation)

A.) generate scaffolding to create database for your application. develop all the entities identified in assignment #2. add any additional that may be identified later. b.) add data validation rules to the models that are appropriate for your application and data. c.) create links for each scaffold in the header section. part 2: application updates [30 points] a.) add two additional views to the "home" controller you created in assignment #1. b.) the two views should be named as “privacy" and "". c.) link the two newly created views in the footer section. hint: you would need to modify the “home" controller definition and create “privacy.html.erb" and “.html.erb" files in appropriate locations.

Two technicians are discussing the common u-joint. technician a says its input and output speeds should be equal. technician b says that it normally has two yokes. which technician is correct?

Linux is distributed under gnu gpl. why is this important? a. it ensures that only torvalds can profit from the sale of linux b. it prevents unknowledgeable users from downloading programs they don't know how to operate. c. it provides protection for the developers who created linux. d. it states that anyone can copy, modify, and share the program if changes are made public.