Question

Discuss the KLM analysis for online pizza ordering from a online website. Compare any two different methods of performing the task and give suggestions of fastest method based on total time estimation. Assume that person operating the task has best typing skill and for whom operator K=0.08 and P=0.8.

Answer 1

In human and computer interaction, the keystroke-level model (KLM) analysis predicts how long it will take an expert user to accomplish a routine task without errors using an interactive computer system, and ordering food online is becoming a norm for restaurants which offer takeout and delivery orders. Which is designed as it is a cost-effective yet efficient system to satisfy the restaurant’s needs. The system is also designed for its ultimate flexibility and performance. The customers will be able to access the company's existing website and browse their menu and select and place their orders on what they desire. Once the customer has confirmed their order, the system will either email or fax the customer’s order to the restaurant. The online ordering system also enables customers to order days in advance and the system will accomplish the order at the specified time. The online ordering system has been constructed to handle large amounts of orders simultaneously to prevent system overload. This system is also flexible in a way, whereby customers are able to place online orders quickly, with just a ‘click’ comparing to the tradition where orders were taken through the phone. With help of an internet database, online ordering can be very easy and convenient even if it has linked the customers’ information with the database of the system which facilitates the ordering of customers. In addition, customers’ information could be tracked easily from their database rapidly if they are regular customers.

Method (1):

Action = m p bb h m kkkkk (where Keystroke = 0.08 sec, Button = 1 sec, Point = 0.8 sec, Home = 1 sec, Mental = 1 sec)
Time = 6.20 sec

Method (2):

Action = m kk b h m kkk h kkkk (where Keystroke = 0.08 sec, Button = 1 sec, Point = 0.8 sec, Home = 1 sec, Mental = 1 sec)
Time = 5.72 sec

Hence, hereby utilized method 2 is a more convenient task/action which has lesser estimation time.