Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 13 of 13 for “"Change propagation"”.
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Change propagation in large technical systems
Propagation of engineering changes has gained increasing scrutiny as the complexity and scale of engineered systems has increased. Over the past decade academic interest has risen, yielding some small-scale in-depth studies, as well as a variety of tools aimed at aiding investigation, analysis and …
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Estimating change propagation risk using TRLs and system architecture
… as our measure for likelihood, and given that change propagates through interfaces, we used metrics that relate to connectivity to estimate impact. To analyze the connectivity, we model systems using networks of nodes and edges and calculate centrality metrics. This framework is applied to an …
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Design Change Propagation in Complex Systems: Industry Processes and Perceptions
Unpredicted change propagation remains a large issue for industries dealing with complex system design despite the numerous tools and processes developed by academics and professionals to help mitigate its effects. All changes, and change propagations, are not necessarily undesirable since change …
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Multilayer network modeling of change propagation for engineering change management
Engineering change management is a critical and challenging process within product development. One pervasive source of difficulty for this process is the phenomenon of change propagation, by which a change to one part or element of a design requires additional changes throughout the product. …
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Quantifying software architecture attributes
… to use software metrics to represent the error propagation probabilities, change propagation probabilities, and requirements change propagation probabilities of a software architecture. Error propagation probability reflects the probability that an error that arises in one component of the …
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Engineering change modelling using a function-behaviour-structure scheme
Engineering changes are unavoidable and occur throughout the lifecycle of products. Due to the high interconnectivity of engineering products, a single change to one component usually has knock-on effects on other components causing further changes. This change propagation significantly affects the …
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Quantifying the Main Battle Tank's architectural trade space using Bayesian Belief Network
… in a global Bayesian Belief Network. Using a change propagation algorithm any changes in the probabilities of individual variables would trigger changes throughout the entire network and can be used as informing messages to the stakeholders to reflect the consequences of these changes. Two …
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Enhancing the quality and breadth of carbon reduction project ideation and roadmapping for corporations
… structure matrix (DSM) and inputted into a change-propagation model to forecast how complexity differences enhance or hinder a sys-tem’s ability to adapt to future technological changes. The tools demonstrated in this thesis equip STs and TFTs with insights and comparative analysis to …
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Adaptation of business rules in business workflow systems
… components of business rules. The business rule change propagation is implemented as an algorithm of graph traversal through the AND-OR graph patterns. A two-levels inference mechanism is built as a vehicle for controlling the business process execution and adaptation of the business rules at …
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Behavioural profiles : a relational approach to behaviour consistency
… It elaborates on how to implement consistent change propagation between process models, addresses the exploration of behavioural commonalities and differences, and proposes a model synthesis for behavioural profiles.
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A methodology for identifying flexible design opportunities
… and operational uncertainties dynamically change environments for engineering systems. Flexibility allows systems to continue delivering value as the uncertainty unfolds. Uncertainty can better be managed by embedding flexibility into the system. However, system designers do not have a tool …
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Cost-effective Design of Automotive Framing Systems Using Flexibility and Reconfigurability Principles
… global economy with open and unpredicted market changes. Manufacturing facilities need to possess a high degree of flexibility, enabling mass customization of production. Reconfigurable Manufacturing Systems (RMS) is a relatively new concept, which if adopted properly, will become a design …
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A socio-technical systems analysis of change processes in the design of flagship interplanetary missions
In the engineering of complex systems, changes to flight hardware or software after initial release can have large impacts on project implementation. Even a comparatively small change on an assembly or subsystem can cascade into a significant amount of rework if it propagates through the system. …