Dr. Les Servi is an operations research scientist and former Chief Scientist for Cyber Operations Research at The MITRE Corporation. Earlier, he conducted research at MIT Lincoln Laboratory, Bell Laboratories, and GTE Laboratories (now Verizon), and spent a sabbatical year as a visiting scientist at Harvard University and MIT.His public-service contributions include membership on Defense Science Board task forces on counterinsurgency (2010–2011) and constrained military operations (2016). During the COVID-19 epidemic, he led the optimization-modeling effort for a multi-tier medical supply chain within the Under Secretary of Defense for Acquisition & Sustainment (USD(A&S)) Joint Acquisition Task Force. He received a Certificate of Appreciation from U.S. Director of National Intelligence, James Clapper.His research record includes five papers with 200+ citations each and 12 patents. He is an INFORMS Fellow (elected 2004), served six years on the INFORMS Board of Directors, and delivered a keynote at the 2023 INFORMS Annual Meeting. Within the Military Operations Research Society (MORS), he served six years on the Board, was elected President in 2024, delivered a keynote address in 2016 and was named a Fellow in 2025.He has held editorial roles with Operations Research, Management Science, and the INFORMS Journal on Computing, and has served on Ph.D. committees at Harvard, MIT, and Boston University. He earned his Ph.D. in engineering from Harvard University.

• .- Part I Introduction to criticality analysis of mission dependency networks with functional components..- 1.Assessing node criticality from local dependencies..- 2.A continuous universal framework for mission dependency networks..- 3.A discrete universal framework for mission dependency networks applied to system identification and critical node analysis..- Part II Mission dependency network analysis with physical and functional components..- 4.Disrupting functional pathways having supporting physical systems: An OR approach..- 5.Disrupting functional pathways having supporting physical systems: A BSI Approach..- 6.Traversing a network of physical nodes to attack functional components of a mission dependency network..- Part III Mission dependency network analysis with incomplete system-of-system knowledge and temporal considerations..- 7.Robust mission network analysis: The theory..- 8.Robust mission network analysis: The practice..- 9.Incorporating time into mission dependency network analysis..- Glossary.

Dr. Les Servi is an operations research scientist and former Chief Scientist for Cyber Operations Research at The MITRE Corporation. Earlier, he conducted research at MIT Lincoln Laboratory, Bell Laboratories, and GTE Laboratories (now Verizon), and spent a sabbatical year as a visiting scientist at Harvard University and MIT.His public-service contributions include membership on Defense Science Board task forces on counterinsurgency (2010–2011) and constrained military operations (2016). During the COVID-19 epidemic, he led the optimization-modeling effort for a multi-tier medical supply chain within the Under Secretary of Defense for Acquisition & Sustainment (USD(A&S)) Joint Acquisition Task Force. He received a Certificate of Appreciation from U.S. Director of National Intelligence, James Clapper.His research record includes five papers with 200+ citations each and 12 patents. He is an INFORMS Fellow (elected 2004), served six years on the INFORMS Board of Directors, and delivered a keynote at the 2023 INFORMS Annual Meeting. Within the Military Operations Research Society (MORS), he served six years on the Board, was elected President in 2024, delivered a keynote address in 2016 and was named a Fellow in 2025.He has held editorial roles with Operations Research, Management Science, and the INFORMS Journal on Computing, and has served on Ph.D. committees at Harvard, MIT, and Boston University. He earned his Ph.D. in engineering from Harvard University.

• .- Part I Introduction to criticality analysis of mission dependency networks with functional components..- 1.Assessing node criticality from local dependencies..- 2.A continuous universal framework for mission dependency networks..- 3.A discrete universal framework for mission dependency networks applied to system identification and critical node analysis..- Part II Mission dependency network analysis with physical and functional components..- 4.Disrupting functional pathways having supporting physical systems: An OR approach..- 5.Disrupting functional pathways having supporting physical systems: A BSI Approach..- 6.Traversing a network of physical nodes to attack functional components of a mission dependency network..- Part III Mission dependency network analysis with incomplete system-of-system knowledge and temporal considerations..- 7.Robust mission network analysis: The theory..- 8.Robust mission network analysis: The practice..- 9.Incorporating time into mission dependency network analysis..- Glossary.

Dr. Les Servi is an operations research scientist and former Chief Scientist for Cyber Operations Research at The MITRE Corporation. Earlier, he conducted research at MIT Lincoln Laboratory, Bell Laboratories, and GTE Laboratories (now Verizon), and spent a sabbatical year as a visiting scientist at Harvard University and MIT.His public-service contributions include membership on Defense Science Board task forces on counterinsurgency (2010–2011) and constrained military operations (2016). During the COVID-19 epidemic, he led the optimization-modeling effort for a multi-tier medical supply chain within the Under Secretary of Defense for Acquisition & Sustainment (USD(A&S)) Joint Acquisition Task Force. He received a Certificate of Appreciation from U.S. Director of National Intelligence, James Clapper.His research record includes five papers with 200+ citations each and 12 patents. He is an INFORMS Fellow (elected 2004), served six years on the INFORMS Board of Directors, and delivered a keynote at the 2023 INFORMS Annual Meeting. Within the Military Operations Research Society (MORS), he served six years on the Board, was elected President in 2024, delivered a keynote address in 2016 and was named a Fellow in 2025.He has held editorial roles with Operations Research, Management Science, and the INFORMS Journal on Computing, and has served on Ph.D. committees at Harvard, MIT, and Boston University. He earned his Ph.D. in engineering from Harvard University.

• .- Part I Introduction to criticality analysis of mission dependency networks with functional components..- 1.Assessing node criticality from local dependencies..- 2.A continuous universal framework for mission dependency networks..- 3.A discrete universal framework for mission dependency networks applied to system identification and critical node analysis..- Part II Mission dependency network analysis with physical and functional components..- 4.Disrupting functional pathways having supporting physical systems: An OR approach..- 5.Disrupting functional pathways having supporting physical systems: A BSI Approach..- 6.Traversing a network of physical nodes to attack functional components of a mission dependency network..- Part III Mission dependency network analysis with incomplete system-of-system knowledge and temporal considerations..- 7.Robust mission network analysis: The theory..- 8.Robust mission network analysis: The practice..- 9.Incorporating time into mission dependency network analysis..- Glossary.