1. Which of the following statements about takt time and cycle time is true?
○ Takt time only depends on demand, not capacity. Cycle time does depend
on capacity.
2. Mr. K’s is a very popular hair salon. It offers high-quality hairstyling and physical
relaxation services at a reasonable price, so it always has unlimited demand. The
service process includes five activities that are conducted in the sequence described
below. (The time required for each activity is shown in parenthesis):
Activity 1: Welcome a guest and offer homemade herb tea (13 min)
Activity 2: Wash and condition hair (14 min)
Activity 3: Neck, shoulder, and back stress release massage (14 min)
Activity 4: Design the hairstyle and do their hair (30 min)
Activity 5: Check out guest (10 min)
Three servers (S1, S2, and S3) offer the services in a worker-paced line. The
assignment of tasks to servers is the following:
S1: Activity 1
S2: Activities 2 and 3
S3: Activities 4 and 5
a. What is labor content (min / customer)?
i. 13 + 14 + 14 + 30 + 10 = 81 min
b. Mr. K considers hiring a new employee to help any one (and only one) of the
servers without changing the tasks performed by each server. What would the
new direct labor cost be per customer?
i. Hire new server to A4 and A5
ii. Lowest flow rate = 1/28 (60) = 2.14
iii. Cost of DL = 4 workers x $20 x 2.14 = $37.33
c. Mr. K also contemplates redesigning the assignment of tasks to servers. For this,
Mr. K is evaluating the reassignment of Activity 5 from S3 to S1. What would the
new direct labor costs be per customer?
i. New flow rates
ii. A1 and A5 = 1/23 (60) = 2.61
iii. A2 and A3 = 1/28 (60) = 2.14
iv. A4 = 1/30 (60) = 2
v. Cost of DL = 3 workers x $20 / 2 = $30
3. Which of the following questions would be asked in a process analysis of a college
admissions office?
○ How long does it take the office to process an application?