Difference between revisions of "Logistics"

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There are several definitions for logistics within systems engineering and the definition used will determine what activities are considered part of logistics.  The SEBoK defines [[Logistics (glossary) |logistics]] as “the science of planning and implementing the acquisition and use of the resources necessary to sustain the operation of a system.”  )
 
There are several definitions for logistics within systems engineering and the definition used will determine what activities are considered part of logistics.  The SEBoK defines [[Logistics (glossary) |logistics]] as “the science of planning and implementing the acquisition and use of the resources necessary to sustain the operation of a system.”  )
  
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===Process Approaches===
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==Scope==
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Logistics Systems Engineering products and services
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include:
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•  Integrated Support Planning – Defining 
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*Document initial and life-cycle resource requirements for performing operations and support. This includes identifying and providing for initial spares, operational and support training capabilities, facilities, etc. Eventual disposal of the system should also be considered. Disposal of any existing systems to be replaced should also be considered.
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and planning support requirements that 
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*Integrated Logistics Support (ILS). Logistics supports many elements of system operations and maintenance. ILS deliverables are the resources necessary to sustain the capabilities required of the system. The most common deliverables include:
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continue through the product’s life cycle as part 
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**Training and Training System.
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of the system design
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**Spares and Repair Parts (including Material Management Data).
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•  Performance Based Logistics – Defining 
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**Consumables and Raw Materials.
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the requirements, plans, procedures and   
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**Technical Data/Documentation
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management methods needed for support from 
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**Support & Test Equipment (STE).
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product or system development to its retirement
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**Facilities.
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•  Logistics Support Analysis/Maintenance 
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**Maintenance Repair Capability.
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  Engineering Analysis – Defining detailed 
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**Storage and Preservation.
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reliability, maintainability, and support  
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requirements for the life of the product for both  
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===Methods & Tools===
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mil-spec and commercial applications
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•  Life Cycle Cost/Total Ownership Cost 
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This section has not yet been written; it will be included in SEBoK version 0.5.
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Analysis – Providing analysis to determine the 
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most cost-effective methods and means of 
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===Evaluation===
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support during the total life of the product
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•  Warranty Management/Support – 
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This section has not yet been written; it will be included in SEBoK version 0.5.
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Providing planning, technical and program 
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  management, computer tracking and  
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==Practical Considerations==
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  coordinating analysis of failure data
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• Repair Level Analysis – Determining the   
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During deployment and use, considerations for cost, schedule, and performance or quality must be balanced. Often, cost and schedule are non-negotiable. As such, when there is budget crunch, there is a tendency to cut down on the planned level of ILS. When this occurs, the system engineer has to take note of the deficiencies in ILS and assess the impact on supportability and sustainability. For example, as spare parts may require long lead times (18 to 27 months is not uncommon for the defense sector), reordering of spares may need to be initiated almost immediately into the use phase even if a 2 to 3 year service spares lay-in may have been catered as part of the initial support package.  
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most cost-appropriate level to which a product  
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As the operators become more proficient with the system, the expectation on how the system is to be used increases. This may result in increased utilization of the system and demands for change requests. (For more information on system evolution, please see System Life Management KA.) An increase in utilization is likely to lead to logistics bottlenecks such as a buildup of the return pipeline or a shortage of spare parts. SE activities would include review of the situation, conduction of logistics support analysis, and/or reliability, maintainability and availability reviews.  (For additional information, please see the Cross-Cutting KA)
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or system should be repaired
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• Diminished Manufacturing Sources  
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==Application to Product, Enterprise, and Service Systems Engineering==
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  Analysis – Providing modeling techniques to
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anticipate future financial concerns caused by 
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part obsolescence issues
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•  Spares Analysis – Defining the optimal mix 
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  of spares based on cost and availability
  
 
==References==  
 
==References==  

Revision as of 15:47, 6 September 2011

There are several definitions for logistics within systems engineering and the definition used will determine what activities are considered part of logistics. The SEBoK defines logistics as “the science of planning and implementing the acquisition and use of the resources necessary to sustain the operation of a system.” )

Scope

Logistics Systems Engineering products and services include: • Integrated Support Planning – Defining 

and planning support requirements that  
continue through the product’s life cycle as part  
of the system design

• Performance Based Logistics – Defining 

the requirements, plans, procedures and  
management methods needed for support from  
product or system development to its retirement

• Logistics Support Analysis/Maintenance 

Engineering Analysis – Defining detailed  
reliability, maintainability, and support  
requirements for the life of the product for both  
mil-spec and commercial applications

• Life Cycle Cost/Total Ownership Cost 

Analysis – Providing analysis to determine the  
most cost-effective methods and means of  
support during the total life of the product

• Warranty Management/Support – 

Providing planning, technical and program  
management, computer tracking and   
coordinating analysis of failure data

• Repair Level Analysis – Determining the 

most cost-appropriate level to which a product  
or system should be repaired

• Diminished Manufacturing Sources 

Analysis – Providing modeling techniques to  
anticipate future financial concerns caused by  
part obsolescence issues

• Spares Analysis – Defining the optimal mix 

of spares based on cost and availability

References

Citations

Primary References

Additional References

Article Discussion

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