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 20 of 390 for “"Root Cause"”.
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Improving customer service contact root-cause analysis
… Therefore, these codes should drive down to the root cause for a contact or concession to allow for efficient correction. Possessing codes that do not clearly identify the root cause for a contact are of little or no use for the company. Additionally, the codes must be developed in such a way …
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Text Analytics to Inform Deviation Root Cause Analysis in Biomanufacturing
… in-depth investigations to determine the cause and prevent recurrence. Understanding quality trends on the manufacturing line is also critical in preventing quality issues. At Amgen, a leading biotechnology company, results of such investigations are stored long-term but only in a …
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The development and validation of a questionnaire on Root Cause Analysis
Background: Root Cause Analysis (RCA) is a method of investigating adverse events (AEs). The purpose of RCA is to improve quality of care and patient safety through a retrospective, structured investigative process of an incident, resulting in recommendations to prevent the recurrence of medical …
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A root cause analysis of stock-outs in the pharmaceutical industry
… that manufacturing quality defects were a major cause of stock-outs, reducing the production yield and preventing the company from meeting customer demand. To help test this hypothesis and address the stock-out challenge, we reviewed existing research on the subject of product stock-outs within …
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Root cause analysis of production defects in a foundry using lean tools
… problem solving report (PPS) for analysing the root cause of production defects for reducing the increase in rework occurred at the core shop heavy duty flow line after the introduction of standardised work. Standardised work was introduced with the generation of standard work instruction, job …
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Root cause defect identification in multicrystalline silicon for improved photovoltaic module reliability
… elevated temperature-induced degradation (LeTID) causes performance to decrease by about 10% (relative) under field-relevant conditions within only four months. In this work, the root cause of LeTID is investigated in three parts: (1) Candidate hypotheses are developed for LeTID; (2) Targeted …
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Log-Driven Robust Anomaly Detection and Root Cause Localisation for Distributed Computing Systems
Modern networked services produce large volumes of operational logs that record what components did at the moment events occurred. These records are central during incident response, yet they are difficult to use at scale. Message wording changes across releases, timestamps are not always …
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Income inequality and wealth concentration as a root cause of the subprime crisis
The crisis that broke out in August 2007 was caused by the fact that the market for collateralised debt obligations (CDOs) had grown to a size sufficient to wreak general havoc when it suddenly collapsed. One of the unresolved questions arising out of the subprime crisis concerns the precise role …
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Application of artificial intelligence techniques for root cause analysis of customer support calls
… Solutions Division, specifically to analyze the root cause of customer calls so actions can be taken to remedy them. This improves the customer experience while reducing the volume of calls, and hence costs, to Dell. This thesis evaluated the external vendor landscape for text analytics, …
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A root cause analysis of REXIS detection efficiency loss during phase E operations
… affected the science output. In this thesis, a root cause investigation is performed on the loss of iron counts, and an optical light leak onto the edge of the instrument's detectors is identified as the most likely cause. A CAST analysis is then performed to identify possible organizational and …
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Root cause analysis and mitigation paths for persistent inventory shortages to an assembly area
… parts of the organization to a supply shock caused by an industry wide titanium and aluminum shortage. A method to analytically assess delinquent part delivery and determine the optimal balance of increased upstream labor capacity versus downstream cost avoidance is presented. This …
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Root cause analysis of low on-time delivery performance at a computer manufacturing plant
Thesis (M.B.A.)--Massachusetts Institute of Technology, Sloan School of Management, 1997, and Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1997.
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Streamlining information and part flow by re-designing process flow to aid root cause analysis
… the challenge identifies the problem of lack of root cause analysis. This is further attributed to the inefficient process flow of information and parts: there is a lack of tracking mechanism for parts which is induced from lack of ownership and value at each stage of the root cause analysis …
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Root cause analysis of solder flux residue incidence in the manufacture of electronic power modules
This work investigates the root causes of the incidence of solder flux residue underneath electronic components in the manufacture of power modules. The existing deionized water-based centrifugal cleaning process was analyzed and hypotheses for root causes of the problem were proposed. The …
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A control charts methodology to multistage process monitoring and root cause diagnosis using hierarchical Bayesian networks
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-03-01 without embargo terms
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Using DMAIC methodology to optimize data processing cycles with an overall goal of improving root cause analysis procedure
… in Waters Corporation in order to improve root cause analysis (RCA) capability. First, a software based approach is proposed to streamline the data collection stage in the field. The proposed system would ensure that field service reports capture essential information, are consistent, and …
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Applied discrete event simulation for root cause analysis and evaluation of corrective process change Efficacy within vaccine manufacturing
… the use of a traditional approaches to Root Cause Analysis. This study performed a statistical analysis of the defect batch attribute content through production stages to determine which contained a Root Cause. Once this analysis identified the Valence Assembly process as a stage of …
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Root-cause analysis and characterization of oxygen-related defects in silicon PV material : an approach from macro to nanoscale
… several advantages over other energy sources because PV is modular, and has proven to be a scalable and reliable technology. A capital expenditure reduction of 70% has been found to be necessary to meet the climate targets of 7-10 TW of PV by 2030. This can be achieved through different …
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Leveraging Retrieval-Augmented Generation, Prompt Engineering, and Vision Language Models for Surface Defect Classification and Root Cause Analysis in Manufacturing
… to enhance surface defect classification and Root Cause Analysis (RCA) in manufacturing. The research examines whether generative and multimodal Artificial Intelligence (AI) systems can deliver accurate, explainable, and cost efficient quality control for manufactured components. The first …
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Tertullian’s conversion to Montanism as the root cause of the dispute between Cyprian and Novatian over the treatment and fate of the Lapsed
With Tertullian’s conversion to Montanism, a revision came in his penitential theology and ecclesiology. As a catholic he admitted sinners to repentance who would eventually be reconciled to the church in this life. After his conversion he reversed this and barred all grave sinners from knowledge …
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