Control of TFE’s at Hallenvale Hospital Case


Assignment Details

In this assignment you are required to complete  the Control of TFE’s at Hallenvale Hospital Case which is in chapter 8 and also discuss chapter 9 questions.

What all about   Control of TFE’s at Hallenvale Hospital Case?

Hallenvale Hospital Case requires you to evaluate the rate of infection at the hospital and then do the following calculations:

  • Determine average percent of infections.
  • Draw the correct control chart with both lower and upper control limits.
  • State the actions that should be undertaken by management.
  • Determine what the appropriate TFE for management to use to monitor future data.

Sample paper

Control of TFE’s at Hallenvale Hospital Case

Discussion Question 7

  1. The publication team for an engineering department wants to improve the accuracy of its user documentation but is unsure of why documents are not error free.

In this particular case, the engineering department should focus on determining the main cause of error in user documentation. The best tool to employ to achieve this is the fishbone diagram. This is a tool that assists in organizing of idea with intention of understanding the association between the possible sources of a problem and the problem or effect by organizing, arranging, and formatting causes identified into sub-themes and themes in an effort to identify the main possible cause of the problem. This tool can offer efforts for problem-solving by collecting and arranging the possible causes, attaining a common comprehension of the problem, showing gap in current knowledge, grading the most possible causes, and analyzing every cause (Neyestani, 2017). In this particular case the main problem is user documentation error. This can be caused by a number of issues which include system design error, human errors, or external factors. These causes of errors may be attributed to other factors for instance human errors may be attributed to rule-based mistakes, knowledge error, slips, lapses or mode.

The engineering department members will need to do analysis of all possible causes of errors, maybe through a survey, observation and system design review to be able rank these causes based on their possibility of occurring. With this information, the department will be able to determine the right cause of action to take. In this case, the problem may be initiated by one particular cause or multiple causes. It is thus important to review all these causes to be able to rule out those that do not make any contribution to the problem. In case human error is identified as the main problem the publication department users will need to be provided with extra training on the use of the publication application system and be caution about being careful and attentive while using the system to improve accuracy. In case the problem is related with the system design, then the department will have to suspend its operations to give the engineering department an opportunity to review the system design and make the required correction. In case the errors are caused by external factors, then possible solutions should be defined to eliminate these factors.

  1. A rental car agency is getting numerous complaints about the length of time that customers have to wait to obtain a car. They need to get a better handle on the factors that relate to the wait time.

In this particular case, it is clear that the agency does not demonstrate total efficiency while providing its services. Either there is delay at specific time of the day or at specific time when the agency is experiencing unusual situation. Although the delay has been reported, the agency is not sure of when they mostly happen and factors that contribute to their occurrence. In this regard, the rental car agency should focus on getting a clear understanding on aspects that relate to the waiting time before a customer get a car  he or she has ordered or would wish to order. The agency would wish to understand the average waiting time to be able to determine the cause of delay and when it mostly takes place during the company’s operations in terms of time of the day, or days of the week. To do this, the company should consider using Pareto charts to determine the main contributor to the reported delay. Pareto chart refers to a special form of histogram which can be easily used to prioritize and find quality conditions, problems or their causes in the organization. It can also be perceived as s form of bar chart which demonstrates the relative significance of variables. The Pareto chart aim is to discover the different form of nonconformity from data figures (Obolewicz & Dabrowski, 2018). Pareto chart can as well generate a way for investigating concerning efficiency improvement, quality improvement, resource management, safety issues and cost management among other things. Pareto is a tool that assists in studying and evaluating the occurrences or frequency of an occurrence in a process and identify is main contributors. The tool will that be very viable in studying frequency of delay occurrences in the car rental agency and identify the main contributor to these delays or causes of these delays. With this information, the agency will focus on determining the best possible way to eliminate the problem to enhance the service provision efficiency. Pareto chart can be as shown below where bars represent possible cause of problem, and the line graph represent the level of delay

  1. A travel agency is interested in gaining a better understanding of how call volume varies by time of year in order to adjust staffing schedules.

The travel agency needs to understand how customer calls vary with time of the year after noting a high level of irregularity as seasons change. To understand this, the travel agency will need to monitor calls throughout the year and keep record of their variation with time. To do this, the agency will need to employ the control chart tool. Control chart is probably the most technically sophisticated tool for quality control. It is a special kind of run chart that shows the nature and amount of distinction in the process over a period of time (Costantino et al., 2014). Control chart can as well describe and draw what has been taking place in the process. It is therefore very essential to use control chart since it can monitor and observe process to examine process, which is in statistical control based on the samplings. The chart may display data in the upper control limit, average and lower control limit (Costantino et al., 2014). An example of control chart is as shown below:

In this case, the volume of calls will be matched with months of the years to determine the month that receives the highest level of calls in a year, those that receive low volume of calls in the year and those that receive average calls during the year. With this information, the travel agency will be able to balance its workers schedule to ensure that there are no excess workers in the call stations when the volume is low or that there are no less workers in the station when the volume of calls is very high. The company will be able to balance its schedule and to establish workers management process that fits the company the best.


Costantino, F., Di Gavio, G., Shaban, A., & Tronci, M. (2014). Inventory control system based on control charts to improve supply chain performances. International Journal of Simulation Model, 13(3), 263-275.

Neyestani, B. (2017). Seven basic tools of quality control: the appropriate quality techniques for solving quality problems in the organizations.

Obolewicz, J., & Dabrowski, A. (2018). An application of the Pareto method in surveys to diagnose managers’ and workers’ perception of occupational safety and health on selected polish construction sites.  International Journal of Occupational Safety and Ergonomics, 24(3), 406-421.