Information systems and managerial decision making

The role of an information system is to support managerial decision processes. Some of these processes can be completely specified in advance and, as long as the specification remains acceptable to management, resolution can be done automatically, within the framework of the information system. However, in other cases, managers are involved in all stages of the decision process, which cannot be completely specified in advance. The task of the information system in these cases is to provide information to the managers engaged in making the decisions. This paper considers these problems from the point of view of the information system designer and makes recommendations about design and implementation.     

Some initial specifications for a strategic information system

Much of the discussion and published literature on information systems to date has been about systems concerned with the internal administration and operations of an organization. Considerably less attention has been given to the information requirements of the more strategic managerial activities of planning and policy making, in which the future directions and objectives of the organization are decided. Internal information systems in many organizations have now grown to maturity. At the same time, managers have become aware of the need for an additional component of the overall information system to support their more strategic activities. This paper considers the broad characteristics of a strategic component of an organizational information system and derives some initial specifications from which a more comprehensive design can be developed.     

Parental involvement in reading: the influence of socio-economic status and supportive home visiting

SUMMARY: This paper describes the deployment of the technique for non-professional tutoring of reading known as ‘paired reading’ on a large scale in the Kirklees Local Education Authority. From the very large amount of data generated in multi-site field trials, particular attention is focused on the relationship between supportive home visiting (if any), an index of the socioeconomic disadvantage of the catchment area of each participating school, and outcomes in term of gains on norm-referenced tests of reading. Some surprising conclusions emerge.     

An LP model for assessing congeneration strategies

A linear programming model is described which is designed to assist in the assessment of optimum operational strategies for industrial plants with cogeneration facilities. A concise format is provided for linking together basic elements such as boilers, valves, turbines and processes with steam and electricity demands with steam, fuel and electricity balance equations. The model should prove particularly useful for assessment when electricity tariffs have time-of-use energy or demand charges or when tariffs have conditions which require consideration of strategies over an extended period. The model has been applied to a paper mill which utilises pass-out turbines for cogeneration of electricity and process steam. Results indicate that savings in fuel costs of the order of 400,000 dollars per year could be obtained by implementing optimal strategies for operating the present turbines. Savings of the order of one million dollars per year could be obtained by converting the turbines to give high pressure pass-out steam and then operating optimally.     

Simulating involvement in complex situations

A model for the process of resolution of complex issues involving many participants with differing preferences for outcomes has recently been proposed [3]. This paper describes the use of a simulation procedure based on this model as a means of preparing those involved in a complex issue for their part in its resolution. Details of the simulation procedure are given first. Practical experience with the use of the procedure is described in the latter part of the paper.     

Analysis in support of strategic policy making

Policy making involves choice between alternatives in situations that are usually very complex. The process of choice in such situations is not such that a straightforward analytical procedure can be prescribed yielding a uniquely rational solution. However, decision problems arising in policy making situations can be investigated using methods based on recent developments in game and metagame theory. This methodology can form the basis of a rational decision structure of the type envisaged by Diesing that can be incorporated in the day-to-day work of most organizations.     

Models for decision-making in the public sector

The public sector is composed of a heterogeneous selection of undertakings which, for a variety of economic, political and historic reasons, are under direct government control. The considerable differences between these undertakings, combined with a paucity of common characteristics, has resulted in a variety of decision-making techniques being employed. In many cases there is an affinity with private sector firms, and techniques technically akin to the profit maximisation model are adopted although social welfare considerations supplant notions of financial returns. As with the private sector, textbook models are frequently abandoned to make way for more pragmatic criteria when informational or computational problems become severe. Additional to these undertakings using techniques parallel to those of the private sector, there are others for which specific decision-making models have been developed. These are mainly in areas where effective demand is considered inappropriate as a method of allocation and appraisal. Finally, there is some evidence that, as the multi-dimensional nature of public sector decisions becomes more widely accepted, the notion of satisficing is gradually gaining acceptance replacing that of maximising.