<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-09-18T18:39:49Z</responseDate><request verb="GetRecord" identifier="oai:dspace.mit.edu:1721.1/126896" metadataPrefix="dim">https://dspace.mit.edu/server/oai/request</request><GetRecord><record><header><identifier>oai:dspace.mit.edu:1721.1/126896</identifier><datestamp>2021-07-05T14:03:20Z</datestamp><setSpec>com_1721.1_7582</setSpec><setSpec>com_1721.1_7581</setSpec><setSpec>col_1721.1_131023</setSpec></header><metadata><dim:dim xmlns:dim="http://www.dspace.org/xmlns/dspace/dim" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:doc="http://www.lyncode.com/xoai" xsi:schemaLocation="http://www.dspace.org/xmlns/dspace/dim http://www.dspace.org/schema/dim.xsd">
   <dim:field mdschema="dc" element="contributor" qualifier="advisor" lang="en_US">Thomas Roemer and Luca Daniel.</dim:field>
   <dim:field mdschema="dc" element="contributor" qualifier="author" lang="en_US">Regele, Oliver Brian.</dim:field>
   <dim:field mdschema="dc" element="contributor" qualifier="other" lang="en_US">Sloan School of Management.</dim:field>
   <dim:field mdschema="dc" element="contributor" qualifier="other" lang="en_US">Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science.</dim:field>
   <dim:field mdschema="dc" element="contributor" qualifier="department" lang="en_US">Sloan School of Management</dim:field>
   <dim:field mdschema="dc" element="contributor" qualifier="department" lang="en_US">Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science</dim:field>
   <dim:field mdschema="dc" element="date" qualifier="accessioned">2020-09-03T15:26:00Z</dim:field>
   <dim:field mdschema="dc" element="date" qualifier="available">2020-09-03T15:26:00Z</dim:field>
   <dim:field mdschema="dc" element="date" qualifier="copyright" lang="en_US">2020</dim:field>
   <dim:field mdschema="dc" element="date" qualifier="issued" lang="en_US">2020</dim:field>
   <dim:field mdschema="dc" element="identifier" qualifier="uri">https://hdl.handle.net/1721.1/126896</dim:field>
   <dim:field mdschema="dc" element="identifier" qualifier="oclc" lang="en_US">1191624227</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Thesis: M.B.A., Massachusetts Institute of Technology, Sloan School of Management, May, 2020</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Thesis: S.M., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, May, 2020</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Cataloged from the official PDF of thesis.</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Includes bibliographical references (pages 137-141).</dim:field>
   <dim:field mdschema="dc" element="description" qualifier="abstract" lang="en_US">Digital Transformation of the Biopharmaceutical industry is enabling improved operations through smart manufacturing. One area of interest is the application of advanced data analytics techniques to supplement traditional workflows. The focus of this research was developing a process simulation model to address a defect observed at a manufacturing line at the Sanofi Pasteur Lyon site. This defect entailed a series of Out-of-Trend batches with abnormally low content of a certain attribute, at the end of a two-year process with complex product batch genealogy, which complicated 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 origin, a Discrete Event Simulator for this process was developed based on historical process data and specifications. This simulator was able to model the current process and replicate the defect in-silico. The simulator identified a specific Root Cause in the batch testing protocol as well as the expected incidence rate of the defect over future campaigns. Finally, the simulator evaluated the efficacy of two potential Corrective Process Changes. This work functions as a practical exploration of integrating novel data analysis and simulation techniques into traditional vaccine manufacturing activities.</dim:field>
   <dim:field mdschema="dc" element="description" qualifier="statementofresponsibility" lang="en_US">by Oliver Brian Regele.</dim:field>
   <dim:field mdschema="dc" element="description" qualifier="degree" lang="en_US">M.B.A.</dim:field>
   <dim:field mdschema="dc" element="description" qualifier="degree" lang="en_US">S.M.</dim:field>
   <dim:field mdschema="dc" element="description" qualifier="collection" lang="en_US">M.B.A. Massachusetts Institute of Technology, Sloan School of Management</dim:field>
   <dim:field mdschema="dc" element="description" qualifier="collection" lang="en_US">S.M. Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science</dim:field>
   <dim:field mdschema="dc" element="format" qualifier="extent" lang="en_US">141 pages</dim:field>
   <dim:field mdschema="dc" element="language" qualifier="iso" lang="en_US">eng</dim:field>
   <dim:field mdschema="dc" element="publisher" lang="en_US">Massachusetts Institute of Technology</dim:field>
   <dim:field mdschema="dc" element="rights" lang="en_US">MIT theses may be protected by copyright. Please reuse MIT thesis content according to the MIT Libraries Permissions Policy, which is available through the URL provided.</dim:field>
   <dim:field mdschema="dc" element="rights" qualifier="uri" lang="en_US">http://dspace.mit.edu/handle/1721.1/7582</dim:field>
   <dim:field mdschema="dc" element="subject" lang="en_US">Sloan School of Management.</dim:field>
   <dim:field mdschema="dc" element="subject" lang="en_US">Electrical Engineering and Computer Science.</dim:field>
   <dim:field mdschema="dc" element="title" lang="en_US">Applied discrete event simulation for root cause analysis and evaluation of corrective process change Efficacy within vaccine manufacturing</dim:field>
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   	&lt;Title>Applied discrete event simulation for root cause analysis and evaluation of corrective process change Efficacy within vaccine manufacturing&lt;/Title>
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   	&lt;PublicationDate>2020&lt;/PublicationDate>
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        	&lt;DisplayName>Regele, Oliver Brian.&lt;/DisplayName>
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    &lt;Keyword>Sloan School of Management.&lt;/Keyword>
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   	&lt;Abstract>Digital Transformation of the Biopharmaceutical industry is enabling improved operations through smart manufacturing. One area of interest is the application of advanced data analytics techniques to supplement traditional workflows. The focus of this research was developing a process simulation model to address a defect observed at a manufacturing line at the Sanofi Pasteur Lyon site. This defect entailed a series of Out-of-Trend batches with abnormally low content of a certain attribute, at the end of a two-year process with complex product batch genealogy, which complicated 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 origin, a Discrete Event Simulator for this process was developed based on historical process data and specifications. This simulator was able to model the current process and replicate the defect in-silico. The simulator identified a specific Root Cause in the batch testing protocol as well as the expected incidence rate of the defect over future campaigns. Finally, the simulator evaluated the efficacy of two potential Corrective Process Changes. This work functions as a practical exploration of integrating novel data analysis and simulation techniques into traditional vaccine manufacturing activities.&lt;/Abstract>
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