Question 1: Using the dependency graph below, answer the following questions T2 T4 T7 T6 T1 T5 T3 Part 1: Based on the dependency graph above build a traceability matrix. Part 2: Based on the dependency graph above build a traceability list Part 3: What is the main advantage of traceability matrices over traceability lists? Question 2: Using the following Feature diagram of an ATM System, compute the number of all possible variants? Show all the steps you followed to get your final answer (see slide 30 in chapter 6). If you fail to do that you will get 10% of the final grade for this question ATM Authentication Unit Money Slot Mechanical Protection Debit Card Reader Receipt Printer Pin Check Biometric Check Shielding Window Wall Installation Iris Check Finger Print Check Question 3: For the same ATM system. In three different levels group the following features based on their stability: Generate receipt print receipt, send receipt via sms, authentication unit, debit card reader, money slot, change slot (a), check slot, mechanical protection, shielding window, and wall installation