摘要:

This paper describes a model for task related decision-making. A distinction is made between three types of task decisions: boundary control decisions, which related the task system to its environment; intrasystem control decisions, which determine the means of performing the assigned tasks; and regulation decisions, which counteract disturbances that may affect task performance. Propositions for autonomous decision-making by the task performer under various conditions, derived from the model, were confirmed through extensive investigations of actual workstations.

ISSN:0020-7543    

DOI:10.1080/00207547708943134

出版商:Taylor & Francis Group    

年代:1977

数据来源: Taylor

摘要:

A great deal of normative research has been done on various production operations. Little research has been done using computer simulation into the implications of the non-programmed decision-making behaviour of managers on the performance of production systems

ISSN:0020-7543    

DOI:10.1080/00207547708943135

出版商:Taylor & Francis Group    

年代:1977

数据来源: Taylor

摘要:

This paper considers the properties of the interstage buffer storage capacity as a ‘ decoupling agent ’ in multi-station non-powered assembly lines, where the economics of production are achieved by balancing delay costs against stock-carrying costs and storage space costs. A simplified mathematical model for exponential service time distribution based on the ‘ cyclic queue ’ concept has been developed, taking into account the three cost parameters, to optimize the buffer storage capacity. A numerical example and sensitivity analysis of the model are presented.

ISSN:0020-7543    

DOI:10.1080/00207547708943136

出版商:Taylor & Francis Group    

年代:1977

数据来源: Taylor

摘要:

The use of time series analysis to characterize the behaviour of machine centre queues of in-process inventory stored within an automated high-rise warehousing system is discussed. By treating queue behaviour as a first-order continuous process, a time constant value is obtained which indicates imbalance in the shop. This value provides a basis for interpretation and control by shop floor managers without direct observation of the queues of in-process materials. Actual time series data of in-process inventory are modelled and interpreted using this approach. Practical aspects of data sampling and parameter estimation are also considered.

ISSN:0020-7543    

DOI:10.1080/00207547708943137

出版商:Taylor & Francis Group    

年代:1977

数据来源: Taylor

摘要:

The use of terminals as an aid for a variety of organizational processes is growing. This study suggests some simple techniques and guidelines for assigning the proper number of terminals. An important finding has to do with the sensitivity of the operation cost to the number of terminals; operation cost is much more sensitive to a lack of, rather than a surplus of terminals.

ISSN:0020-7543    

DOI:10.1080/00207547708943138

出版商:Taylor & Francis Group    

年代:1977

数据来源: Taylor

摘要:

The production of a certain amount of a single product in the minimum time using n heterogeneous facilities is considered. The production quantities for particular facilities must lie within certain bounds at certain times. Thus, in general, the production at every facility is performed in periods, the numbers of which are aprioriunknown. During these periods the numbers have to be found together with the production quantities. An effective algorithm is presented for solving the above problem optimally fortime/production quantity, convex or concave functions. In the algorithm, some special properties of optimal solutions are used, and because of this it may be useful in practice.

ISSN:0020-7543    

DOI:10.1080/00207547708943139

出版商:Taylor & Francis Group    

年代:1977

数据来源: Taylor