Pages

Welcome to MS-01 Blog. Here you will find loads of material on Management functions and behaviour.

Change Font and Font Size

Showing posts with label decision-making models. Show all posts
Showing posts with label decision-making models. Show all posts

Tuesday, September 21, 2010

Explain any two models of decision-making process.

Explain any two models of decision-making process. Which model best characterizes your organization’s (or an organization you are familiar with) decision process; cite examples to justify your answer.
Answer. Decision-making is defined as selection of a course of action from among alternatives. Decision-making is important because people at all levels in an organization must constantly make decisions and solve problems. For managers, the decision making and problem tasks are particularly important parts of their jobs. How should profits be invested? Which employee should be assigned a particular task? Large problem or small, it is usually the manager who must confront it and decide what action to take. Managers’ decisions provide the framework within which other organization members make their decisions.

TWO MODELS OF DECISION MAKING

1. The Garbage Can Model: The view of decision making as an unstructured process is taken to its extreme in the garbage can model. This model turns the decision making process around and argues that organizations are as likely to start making decisions from the solutions side as from the problem side. In others words, decision makers may propose solutions to problems that do not exist; they create a problem that they can solve with solutions that are already available.

Garbage can decisions making arises in the following way: An organization has a set of solutions, or skills, with which it can solve certain problems- for example, how to generate new customers, how to lower production costs, or how to innovate products. Possessing these skills in making custom-designed furniture. The head of the marketing department persuades the company president that the organization should exploit these skills by expanding internationally. Thus a new problem- how to manage how to manage international expansion- is created because of the existence of a solution- the ability to make superior custom-designed furniture.

While an organization is encountering new problems of its own making, it is also trying to find solutions to problems it has identified in its environment or in its internal operations. To further complicate the decision making process, different coalitions of managers may champion different alternatives and compete for resources to implement their own chosen solutions, and the preferences of different individuals and coalitions all mix together and contend with one another for organizational attention and action. In this situation, an organizational becomes an organized anarchy in which the selection of alternatives depends on which coalition’s or manager’s definition of the situation holds sway at the moment. Chance , luck, and timing are important determinants of what the organization decides to do, because the problem that is currently the major source of uncertainty facing the organization has the best chance of being dealt with. Outcomes for the organization become more uncertain than usual, and decision making becomes fluid, unpredictable, and even contradictory.

The following diagram shows the garbage can model.


2. The rational Model: According to the School of Information Sciences and Technology at Penn State University, the Rational Model of decision-making, “requires comprehensive problem definition, an exhaustive search for alternatives, and thorough data collection and analysis. According to this model, information exchange and communication are unbiased, and accurate decision alternatives are intentionally chosen to bring maximum benefits to the individual, organization or group. Essentially, the Rational Model requires people to have a clear understanding of the actual problem. Unless the issue is clearly established, the Rational Model can be ineffective. This model also incorporates extensive research, so that all options or alternatives can be brought before the decision-maker(s). The Rational Model is a step-by-step decision-making model. Basically, the Rational Model can be broken down into four basic steps, which can be further diluted to create the additional three to five steps.

Step 1 – Define the Problem: The first step of the Rational Model is to define the problem. As stated in the definition, in order for the Rational Model to be effective, the problem or issue needs to be clearly understood. It is imperative to truly understand to source of a problem, not just the symptoms.

Step 2 – Generate Ideas/Alternatives: The second step to the Rational Method is the generation of a list of possible solutions or alternatives. The Rational Method requires that all possible solutions to a problem be discovered. No solutions should ever be evaluated or discarded at this point of the decision-making process. This process requires extensive research, and multiple resources and parties should be involved in the generation of this list. This search should continue until all possible solutions are presented or, “until the cost of search outweighs the value of the added information”.

Step 3 – Evaluate Ideas/Alternatives: The third step of the Rational Model is to assess and evaluate all the ideas and alternatives collected in Step 2. This is the point in the Rational Decision making model where all the advantages and disadvantages for each alternative are weighed. Factors such as the ability to implement, the completeness of the solution, the amenability to all parties, the required time and cost are all to be considered. It is important to spend the time here to identify the best all around option as opposed to the quick and easy solution.

Step 4 – Implement Solution: The fourth and final step of the Rational Model for decision-making is to implement the chosen solution(s). Once a solution has been selected, a plan to implement that solution must be developed and rolled-out. This is a very important step as without the successful implementation of the solution; all the work done to find the solution is wasted. It is imperative here to get the buy-in of all parties and stakeholders that are involved with, or affected by, the solution. Often considered as a separate last step, the final piece to Step 4 is the monitoring, or the follow-up of the solution. It is imperative to check the status and success of any implemented solution. This will help to identify any needs for adjustment and provide further input for future decision-making opportunities.

ORGANIZATIONAL EXAMPLE
In my current position with the On-site Services Division of W.W. Grainger, Inc., I am actively involved in Kaizen events sponsored by our clients. Essentially, the purpose of these events is to solve a problem or lean a process. Recently I was involved in an event with a client that utilizes clean room garments. At the time of the event there were no effective controls in place to regulate and track the usage of these garments. The client in question was loosing close to $75K a year in lost and damaged garment charges. Obviously, this was a significant problem that required a long term and effective resolution.

In these Kaizen events, a form of the Rational Decision-Making process is utilized. The first task of the event team is to map out any and all processes involved and identify all the symptoms. This way the root cause of the problem can be uncovered and clearly defined. In this case the issue was that employees were misusing and damaging the garments, losing them and even “allocating” the garments for home use.

The next step is to research and consult subject matter experts in order to collect any and all possible solutions. In this case, clean room, supply chain, garment and electronic distribution experts were all consulted in an effort to seize every potential option. In this case, the options were incredibly varied and ranged every where from bar-coding and tracking all garments to replacing them with disposable garments to methods of controlled distribution and collection.

As it is in the Rational Method of decision-making, the third step in these Kaizen events is to analyze the alternatives. The pros and cons of each potential solution are weighed. Factors such as ease of use, effectiveness, reality of implementation and cost vs. benefit are all evaluated. In this particular instance, the sheer cost of the lost garments was enough to warrant a very strict, but slightly more expensive system of control. A system of electronic point-of-use garment exchange machines (similar to those used by hospitals for scrubs), was the eventual decided upon solution.

The final step to any Kaizen event is the report-out of the event results and the implementation of the solution. In the case of the garments, the machines were leased, the software tailored and the hardware put into place. At this point training occurred, and then the new process went “live”. The results have been closely monitored ever since. To date, this process has been running for three months. For that period of time lost garment charges were just below five hundred dollars. This is a projected annual lost garment cost of under $2,000, and decrease of over $73K in cost annually.
Continue Reading ...

Sunday, May 17, 2009

Discuss various decision-making models. Which model according to you is the best model? Justify your answer with examples.

Discuss various decision-making models. Which model according to you is the best model? Justify your answer with examples.

Ans. Decision-making is a process of evaluation of available alternatives and selection of best alternative from the available system to provide the efficient course of action. We are after encountered with a lot of situations where we need to perform a process of decision making. The main features of an efficient decision are making involve the identification of alternatives for a given set of problem. The problem in hand could be organisational, related to resources, financing, purchasing or any other problem.
Identification: The major feature to take an efficient decision is hence identification of the problem. A well-defined problem is halfway towards solution and each solution lies towards the root of the problem. The problem statement must hence be clean, concise and to the point. Irrelevant details must be filtered out from the available system of operation. As an approach towards solution we need to take many decisions. Each step involves checking alternatives and selecting best among them.
Identification of Alternatives: After explanation of the problems the next step is to see that there exist enough of alternatives for the decision makes to choose from. For the purpose of identification of the available choice what is most practiced involves Brainstorming, opinion polls, Delphi, synectics grouping, etc. Each method varies from organisation to organisation depending upon the availability of resources.
In Brainstorming the individuals involved are given a question to ponder upon. This would help them to find out various possibilities of the course of action to be performed. All set of ideas are considered and none of them is eliminated before evaluating it completely. Ideas which are so collected are then evaluated for its cost benefit analysis, feasibility of solution. Even worst of the ideas are considered. It has been observed that the worst ideas sometime come out to be best and readily accepted ones. It is a time consuming technique of decision making.
Opinion polls generally involve the collection of opinions on the various issues from the participants. The basic idea is to gain an insight of the problem in hand from the viewpoints of participants. The options are available and participants opinion is desired on the same.
Delphi technique involves the passage of problem to various individuals repeatedly thereby eliminating unnecessary steps and turning out as an error free system of the operation.
In Grouping multiple problem are given to group members to share the ideas on problem in hand yielding their best solution towards problem under study.
Synectics technique is a formalised technique where leader explains problem to the group and they devise solutions based various parameters and areas of expertise.
After the above mentioned steps of generation of a number of alternatives, the next step is towards the Evaluation of alternatives.
In this step the existing alternatives are evaluated on basis of the strengths, benefits, cost effective, implementation constraints, ability to meet the desired criteria etc. Evaluation process has its merits in terms of choosing best method of solving the problem in hand. Various methods like of techniques are of usage in the alternatives evaluation. Decision best alternative as an approach towards the decision making.
Selection: When the alternative are evaluated one or more options are considered for meeting the needs of organisation this is known as selecting best suitable option from the given sets. The chosen options must suit the constraints of resources, time efforts etc.
Implementation: This is a crucial phase of decision making when an alternative suiting the best options is implemented. This process involves provision of necessary tools, resources, planning etc. for carrying out the job efficiently.

Decision making process is a highly responsible job. All alternatives must be considered before finalising a decision. A manager is hence expected to note that anything that could have adverse effect on decision making must be handled. The skills required are
• Dedication,
• Thorough knowledge of system,
• Communication efficient,
• Ability to get along well with people,
• Persistence activity, and
• Understandeable,

Various strategies required for the organisation change are
(i) Top down strategy: In this strategic more down the line to the lowest level. The strategy is followed by manufacturing organisation in such cases when management forcxes a change towards the better functioning of organisation. It is implemented due to the resistance towards change from lower level employees. They tend to think tha it is a direct blow on their job and hence they raise hue and cry on any such move when top down strategy is followed the higher lend employees set an example before their lower grade colleagues that they are far better than they were before. The strategy assumes that the management is responsible for any sorts of methods to ease the process of system development and changes in existing system of any types.
(ii) Bottom up strategy: This strategy is an approach towards organisation building from lowest unit. In this strategy the lower level employees are first provide the training towards changing of methods. This further modifies to the upper level. This is followed in those cases when people welcome change and perceive the new system as a way to improve their productivity and work efficiency. They consider the new setup as a step towards improvement in their skills such individuals are more committed towards success of the organisation Bottom up strategy also is involved in the designing and growing change in a well fashioned manner. Works in the manufacturing units are trained for efficient methods of production, increase in efficiency, decision making, time management and these prove to be an input to the higher lend supervisors and managers who also gain an insight of the better results of the new structure with these kinds of changes coming a self confidence develops leading the variations at higher lends.
(iii) Contingency approach of the change implementation involves the considerartion of factors of the organisation. Suchj variables or factors are diagnosed and based on it there is an implementation of the strategy. The implementation is again based on three variables. All the variables mentioned are written on basis of their values. The eight variables mentioned are diagnostic variables and are present as time, need of change, size, effect of change, organisation concentration, people expectation, potential resistance, power of change agent. The diagnosis reveals the basis of various changes mentioned as availability of time is measured as little time or long time. Other factors like resistance is put up as small resistance or great resistance is also mentioned.
The organisation change process is normally a mix of the various methods mentioned. The way changes are implemented depends on organisation and often varies. The net output is in form of a strategy that is well suited to the needs of the new organisation setup. New roles and relationships are defined the cause the system to behave in an integrated way. The new processes are easy and cost effective and yield better outputs costs of manufacturing goes down, workers social status increases. The overall organisation goal is achieved in a short time and a better performance is ensured.
Organisation generally constitutes the change agent from within organisation so that there is minimum resistance if at all to the process of change and performance. Delphi model is the best model of decision making, which is international accepted model.
Continue Reading ...