Problem: Consider the following services offered by a courier services provider.
- Speed
- Cost
- Dependability
- Quality
- Flexibility
First the express deliveries offered by many companies, with next day delivery, before lunch-time. The second one, the more traditional courier service, used to send letters like bank statements and other non-urgent communications, which normally take 3 to 5 business days for domestic deliveries.
Which of the following performance objectives would the selection of the 'Traditional letters' service help to achieve?