Chapter 14 – Operational Performance Measurement: Sales, Direct-Cost Variances, and the Role of Nonfinancial
Performance Measures
14-42 JIT and Process Cycle Time Efficiency (PCE) (45-50 minutes)
1. The terms “value-added” and “non-value-added” are defined from the perspective of
the customer (i.e., an external perspective is taken). Because the perspective is
external, the notions of “value-added” vs. “non-value-added” are not strictly or
uniquely defined. The key question in classifying activities is whether the consumer
would “pay” for the activity. This is one way to operationalize the two terms. We note
here in passing that these terms are derived from the literature of activity-based
costing (ABC). The purpose of this part of question #1 is to have students think about
the difference between an internal and an external perspective when developing
appropriate performance indicators (metrics).
With an understanding of the terms “value-added” and “non-value-added,” the
student is now in a position to understand the notion of “processing cycle efficiency
2. Cycle time is the total time required from the start of production to completion of
outputs. Process (or processing or manufacturing) time represents the time actually
required for processing. As such, process time excludes waiting time, storage time,
moving time, set-up time, and inspection time, all of which can be considered “non-
value-added” from the standpoint of the customer.
As shown in text Exhibit 14.14, we might begin by defining Customer Response
Time (CRT), as the difference between when a customer places an order and when
that order is completed), and delivery time (time between when an order is completed
and when that order is received by the customer). As shown in Exhibit 14.14, we
might further break-down manufacturing lead (cycle) time into waiting time and
manufacturing (or, production cycle) time. Finally, manufacturing time can be
decomposed into the elements reflected above in the formula for PCE.
14-41
Education.