1,721,151 research outputs found

    Managing the environment as a means to managing complexity

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    This chapter looks at managing the environment as a means to managing complexit

    Managerial and organizational cognition

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    Interest in the field of managerial and organizational cognition has been intense over the last few years. This book explores and provides an in-depth overview of the latest developments in the area and presents answers to the questions accompanying its growth: Is the field distinctive? How does it extend our understanding of managerial processes? From different disciplinary perspectives and empirical settings, the contributors study patterns of managerial cognition. In particular, the longitudinal approach reflected in the volume contributes to its impact as a grounded, practice-based analysis of cognition in organizations

    Machine scheduling and interference

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    Group support systems : concepts to practice

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    Group support systems have been in existence for 40 years and have been applied widely since their inception. One particular realm is using group support systems(GSSs) for assisting managers who must negotiate the resolution of messy, complex, and/or strategic problems in order to achieve an agreed outcome. Taking cognizance of concepts such as procedural justice and boundary objects,as well as the underlying features of GSS, an intervention involving social and psychological negotiation is presented and examined. The case intervention deals with two organizations needing to move from adversarial modus operandi to a more productive and collaborative mode in order for both to operate more effectively. The intervention is presented in a chronological manner allowing particular phases to be explored, considered alongside research into the nature of failed decisions, group behaviors, and social and psychological negotiation, and a number of salient elements and their implications for facilitators are provided

    The amoebic growth of project costs

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    In the public arena, we often hear about projects that have suffered massive cost overruns. Often they are related to large public construction projects such as airports, bridges, or public buildings. Large overruns also exist in private industry. However, often these do not appear in the newspapers, so the public is not as aware of them. Of course, not all projects go badly wrong, but quite a few do, and frequently we find ourselves uncertain of the causes for such overruns. In this paper, industrial projects that overrun and overrun in a surprising manner are considered. In other words, the paper considers those many projects where the extent of the overrun is well beyond what might ever have been anticipated, even though what was going wrong within the projects was, for the most part, understood.The basis for the content of the paper (that is, the structure and lessons), are drawn from a postmortem analysis of many large projects as part of claims analysis, particularly "delay and disruption" claims for projects whose total expenditure appeared, at first look, inexplicable or surprising. The aim of the paper is to contribute to an understanding of how projects go badly wrong, when they do, and in particular to draw some lessons from this exploration that are likely to help all managers. The reasons for cost escalation are not just the responsibility of project managers.<br/

    Dismantling the learning curve: the role of disruptions on the planning of development projects

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    Any medium-run design and manufacture project requires manufacture learning to be estimated and controlled. Since the 1930's and the explication of Wright's Law, this learning has been usefully forecast using a logarithmic function. This ‘rule of thumb’ meets most practical requirements and the task of planners depends on their ability to estimate the ‘learning curve index’ from historical data. However, when projects are disrupted by clients changing their requirements by making additions or modifications, the process of estimating the impact of these changes becomes particularly difficult. The ‘rule of thumb’ has to be dismantled to account for wasted learning, the difference between corporate learning and personal learning, attributes of developmental work, retrofitting, new learning, and so on. This paper discusses the elements of disruption to learning in order that better estimates can be made of the impact of disruption. The conceptualization of learning which is presented is based upon detailed analysis for a contractor of one of the major projects for the Channel Tunnel, carried out to help compute delay and disruption for a litigation

    The effects of design changes and delays of project costs

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    This paper describes a study of a large design and manufacture engineering project, undertaken as part of a Delay and Disruption litigation. Design changes and delays in design approval would have caused delay to the project; in order to fulfil a tight time-constraint, management had to increase parallel development in the network logic, reducing delay but setting up feedback loops that markedly increased total project spend. Cognitive mapping was used to elicit the relationships, which suggested the use of System Dynamics to quantify the effects. Results are described that show the effect of levels of design changes and approval delays, and their compounding effect. The wider implications on modelling projects are also discussed

    Analysing project cost overruns: Comparing the "measured mile" analysis and system dynamics modelling

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    The forensic analysis of failed projects is often intended to identify specific reasons and allocate blame for significant cost overruns. In claim circumstances two approaches are often used: the “measured mile”, and system dynamics simulation modelling. This note compares these approaches and argues that, although it is the most popular approach in litigation, the measured mile method is unreliable in cases where disruptions and delays are a significant part of the explanation for additional costs and late delivery of a project

    Structuring a delay and disruption Claim: an application of cause-mapping and system dynamics

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    The idea of ‘‘Delay and Disruption’’ within projects is well-known and is often the subject of litigation claims. However, the term is ill-defined, and it is difficult to justify such claims within a legal process. This paper demonstrates a well-developed approach, which is a logical, transparent, auditable and sustainable means of presenting such a claim. It describes the format for a claim document that presents first the disruptive triggers, then using a formal qualitative model builds the case from the interacting effects of these triggers. Transformation of this model into a computer simulation and the ability to explore different scenarios provides the quantitative part of the claim document. Thus three elements are presented in the document: demonstration of causality, of responsibility and of a quantum for the claim. This process also provides additional benefits, including a high level of participant ‘‘buy-in’’, and the basis of a model that can be used to support the claim
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