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- Type:
- Document
- Date Created:
- 2009 July 26-2009 July 30
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 23d738ba88f8333bc39725f9cb5bd0b8, b3584c6b53c3f58e0202549d7d851f84, and 4818cb531cdd68d6ec6af3f291216fc7
- Description:
- In this study we develop a system dynamics model of teachers adoption of e-learning system. We identify that environment variables and teachers individual characteristics are the two main factors affecting teachers adoption. Consequently we integrate well-known technology acceptance model into our dynamic model. This study also proposes three policies to enhance teachers adoption. Each policy will be analyzed individually, and policy comparison will also be performed.
-
- Type:
- Document
- Date Created:
- 2009 July 26-2009 July 30
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 23d738ba88f8333bc39725f9cb5bd0b8, b3584c6b53c3f58e0202549d7d851f84, and 4818cb531cdd68d6ec6af3f291216fc7
- Description:
- This paper aims to support growth management for firms that have no stable growth logic. Based on Schöns reflective management perspective (Schön, 1983), we propose an iterative system dynamics-based reflective strategy development process to facilitate managers to organize and develop firm growth logic. Different from typical system dynamics modeling which is based on existing dynamic structures, in this paper, an iterative system dynamics modeling process is designed to develop models that evolve with managers ideal designs towards the implementation of expected growth patterns. An action science research is conducted with a case to illustrate the iterative SD model-based growth management process. How the case under discussion enhanced its understanding of the confronted growth problem and developed its growth logic to guide the formulation of relevant growth strategies are clearly described.
-
- Type:
- Document
- Date Created:
- 2009 July 26-2009 July 30
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 23d738ba88f8333bc39725f9cb5bd0b8, b3584c6b53c3f58e0202549d7d851f84, and 4818cb531cdd68d6ec6af3f291216fc7
- Description:
- The benefits of a strategically balanced product portfolio, as a key driver of long-term business success, are well documented. In this respect, many firms have been unable to achieve a balanced product portfolio. An important cause is the failure to develop dynamic capabilities, that is, the capabilities to reconfigure internal and external competences to address dynamic business environments. In times of environmental instability and financial decay, top managers are facing difficulties in adapting their strategy to changes in market and competitive conditions. Firms can thus become seriously trapped in a reinforcing negative loop, where the changing environment is counteracted with inadequate strategic actions, which in turn results in further decreasing financial performance. This so-called suppression mechanism serves to explain why so many firms fail at building dynamic capabilities. We draw on system dynamics modeling to build and simulate a model of the causes, consequences, and potential solutions of the suppression mechanism. This model is derived from the literature on dynamic capability and, more broadly, strategy and innovation studies. The main contribution of this paper to the literature on dynamic capabilities is the definition and codification of the suppression mechanism.
-
- Type:
- Document
- Date Created:
- 2009 July 26-2009 July 30
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 23d738ba88f8333bc39725f9cb5bd0b8, b3584c6b53c3f58e0202549d7d851f84, and 4818cb531cdd68d6ec6af3f291216fc7
- Description:
- Software projects have traditionally been problematic in terms of quality, cost and time. Researchers and practitioners have focused on agile software development as an alternative to overcome these problems. Agile methods employ iterative development cycles (typically 20 working-days), interspersed by user feedback. The key to agile projects is the sense of urgency created by the need to deliver at regular intervals. This paper examines this construct, i.e., schedule pressure. We investigate the relationship between the level of agility (length of the iterative cycle) and project outcomes. We argue that project outcomes may suffer either from a team being too inactive, e.g., in sequential or low levels of agility, or from a team being over-active over too long, a situation likely to occur in high levels of agility. We hypothesize that moderate levels of agility are likely to result in the best project outcomes. We test our hypothesis through simulation, and find a U-shaped pattern: performance is better when iteration lengths are 50 working-days, as opposed to 20 working-day cycles widely used in practice. Our analysis provides both theoretical insights into the dynamics of agile software development and practical suggestions for managing these projects.
-
- Type:
- Document
- Date Created:
- 2009 July 26-2009 July 30
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 23d738ba88f8333bc39725f9cb5bd0b8, b3584c6b53c3f58e0202549d7d851f84, and 4818cb531cdd68d6ec6af3f291216fc7
- Description:
- This paper presents a theoretical expansion of the 3-step modelling approach (Costanza & Ruth, 1998), which proposes an incremental progress from scoping models to research and management models. The trade off for increased detail and resolution in model building is a decrease in transparency. This paper aims to provide a context for Mediated Modelling (which happens at the scoping level) and similar system dynamics based participatory modelling approaches, as a missing link toward Adaptive Management. An emphasis is placed on reflective capacity among relevant stakeholders to evaluate the behaviour of systems at various scales and integrated dimensions. A theoretical Multi-Scale Integrated Modelling for Sustainable Adaptive Systems (MIMSAS) framework is discussed as a foundation for three, 6-year research programmes on (1) urban systems, (2) energy systems and (3) watershed and coastal ecosystem services.
-
- Type:
- Document
- Date Created:
- 2009 July 26-2009 July 30
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 23d738ba88f8333bc39725f9cb5bd0b8, b3584c6b53c3f58e0202549d7d851f84, and 4818cb531cdd68d6ec6af3f291216fc7
- Description:
- There is an increasing concern on the part of corporate sector of the importance to harness knowledge as their most valuable resource. The purpose of this work is to identify the effects of knowledge reuse in service systems. In order to achieve this, a system dynamics model of a software-house's technical support service in Brazil is developed, emphasizing on the use of knowledge bases and its effects over the service system. It concludes that i) the model aids the designer in evaluating several aspects of the system as well as its performance, including the effects of knowledge reuse and ii) based on the simulation results, knowledge management enhances service system performance.
-
- Type:
- Document
- Date Created:
- 2009 July 26-2009 July 30
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 23d738ba88f8333bc39725f9cb5bd0b8, b3584c6b53c3f58e0202549d7d851f84, and 4818cb531cdd68d6ec6af3f291216fc7
- Description:
- HISTORY OF JAPAN CHAPTER: System Dynamics history in Japan commenced in 1960s; several textbooks of Industrial Dynamics were published in those days. After that, many researchers used system dynamics in their own field individually for about 30 years. Thereafter, system dynamics researchers gathered and founded the Japan Chapter of the System Dynamics Society in 1990. Since then, members were beginning to prepare the International System Dynamics Conference. We held the 1995 conference hosted by Gakushuin University in Tokyo. In 2006, Japan Chapter had over 100 members. As research activities, the Japan Chapter publishes an annual journal and holds regular research meetings and symposiums, usually in Tokyo. The recent theme of the public symposium was "Sustainable Management for the Economic Crisis once in a century". This conference site was in Nagoya University, the first conference outside Tokyo. We always welcome System Dynamics Society members or users who visit Japan. Several system dynamics researchers have already had meetings hosted by the Japan Chapter. Contact with our office is greatly appreciated.
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- Type:
- Document
- Date Created:
- 2009 July 26-2009 July 30
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 23d738ba88f8333bc39725f9cb5bd0b8, b3584c6b53c3f58e0202549d7d851f84, and 4818cb531cdd68d6ec6af3f291216fc7
- Description:
- In this paper we use Object-Role Modeling (ORM) to complement System Dynamics (SD). The art of SD modeling lies in discovering and representing feedback processes and other elements that determine the dynamics of the system. However, SD shows a lack of instruments for discovering and expressing precise, language-based concepts in domains. At the same time, the field of conceptual modeling has long since focused on deriving models from natural expressions. We therefore turn to ORM as a prime example to integrate a strong natural language based conceptual modeling approach into the creation of SD models. ORM is a formal fact-oriented approach for modeling information at a conceptual level. In this study we investigate the basic building blocks of these methods using examples. Investigating the foundation of the two methods helps us to better understand their underlying concepts and their differences in update behavior due to state and decision changes. We use SD to capture the dynamic, and ORM to capture the static aspect of a system.
-
- Type:
- Document
- Date Created:
- 2009 July 26-2009 July 30
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 23d738ba88f8333bc39725f9cb5bd0b8, b3584c6b53c3f58e0202549d7d851f84, and 4818cb531cdd68d6ec6af3f291216fc7
- Description:
- Recent media reports include several large systems engineering failures. These failures are especially alarming given that they span different sectors (i.e., shipbuilding and space systems), and are not isolated to one firm. Therefore we need to ask: Have we lost our systems engineering competitive edge? What can the systems engineering discipline do to correct the apparent discrepancies that appear to be at the root cause of these failures?
-
- Type:
- Document
- Date Created:
- 2009 July 26-2009 July 30
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 23d738ba88f8333bc39725f9cb5bd0b8, b3584c6b53c3f58e0202549d7d851f84, and 4818cb531cdd68d6ec6af3f291216fc7
- Description:
- Agile Project Management reviews literature of the agile software development domain relevant to System Dynamics.