Master Technical Specifications: New Product Development
System and Subsystem Technical Specifications - Discussion
Introduction - Technical Specifications
In this article, we will delve into the definitions of system and subsystem Technical Specifications, discuss their applicability, and explore the factors that necessitate regular updates to these essential documents.
Generally, in the realm of vehicle product development, maintaining up-to-date documentation for system and subsystem technical specifications is crucial. Therefore, this documentation serves as the backbone of engineering and production processes, ensuring that all stakeholders—from engineers to suppliers—have a clear understanding of the technical requirements and standards.
Moreover, the need for accurate and comprehensive documentation becomes even more critical as products evolve and new technologies emerge.
System and Subsystem – Definition
Firstly, let’s define the terms for the System and Subsystem applicable to the complex total assembly. Hence, this would be relevant to the Automotive industry, i.e. Vehicle Assembly, for example.
Fundamentally, System is a concert or conglomerate of responsible executive subsystems working according to the defined logic to accomplish a specific System Function, dedicated to support the total assembly (higher) function. Furthermore, System Function would be defined by the set of System Requirements outlined in the System Technical Specifications document (STS)
Examples:
- Breaking System
- Steering System
- Seat Belt Monitoring System
- Airbag Deployment Management System
- etc.
Sequentially, Subsystem is a responsible executive assembly of components (commodities) working according to the defined System logic and other requirements to accomplish a specific Subsystem Function, intended to support the total assembly (higher) function (s).
Examples:
- Break Lines Subsystem
- Steering Column Subsystem
- Seat Belt Subsystem
- Airbag Subsystem
- etc.
System and Subsystem Technical Specifications - Definition
Mainly, System and subsystem Technical Specifications are detailed documents that outline the requirements, characteristics, and constraints of a vehicle’s systems and subsystems. Moreover, these specifications are integral to the design, development, and validation phases of product development. Therefore, they provide a clear roadmap for engineers, detailing everything from performance criteria and material specifications to interface requirements and compliance standards. Additionally, the applicability of these specifications spans various stages of the product lifecycle, from initial concept and design to manufacturing and service. Therefore, they are foundational documents that guide the creation and maintenance of a vehicle’s technical integrity.
Firstly, System Technical Specifications (STS) is the document describing the intended functionality and specifications guiding the requirements of the executive Subsystems and other elements of the system. In addition, besides the general description and “other” requirements, the document provides the Functional and Interface requirement related to the intended functions. Furthermore, the requirements are later translated into the Design Failure Mode & Effects Analysis (DFMEA) and Process Failure Mode & Effects Analysis (PFMEA). See the references.
Secondly, Subsystem Technical Specifications (SSTS) is the document describing the intended functionality and specifications related to the requirements of the components and other elements of the subsystem. Fundamentally, each given Subsystem exists as a unique commodity and is created based on a set of its own requirements. However, for each application, i.e. specific Vehicle Variant Assembly, the specific set of Part Numbers released, would have to be correlated and aligned with the guidance provided by the Vehicle System and the Vehicle Technical Specification (VTS), not discussed here.
Regular Established Maintenance Cycle
Generally, updating Technical Specifications on a regular cycle is a best practice in vehicle product development. Typically, these updates occur annually or even once in two years, depending on the complexity of the system and the rate of technological advancement. Furthermore, regular updates ensure that the documentation remains relevant and accurate, reflecting the latest engineering insights, regulatory changes, and industry best practices. Therefore, this cyclical approach allows for the continuous improvement of products and helps organizations stay ahead of potential issues that could arise from outdated or incomplete specifications.
Factors Influencing the Necessity for Regular Updates
Overall, several key factors drive the need for regular updates to system and subsystem technical specifications:
- Firstly, New Requirements Development. As vehicles become more complex and consumer expectations evolve, new requirements emerge that must be documented and communicated. In addition, this could include advancements in safety features, infotainment systems, or fuel efficiency technologies. Furthermore, documenting these new requirements ensures that all stakeholders are aligned and that the vehicle meets the latest standards and customer expectations.
- Followed by, New Government Regulations. Regulatory bodies frequently update safety, environmental, and performance standards. Therefore, staying compliant with these regulations is not only a legal requirement but also a critical aspect of maintaining brand reputation and avoiding costly penalties. Moreover, regular documentation updates help ensure that all vehicle systems and subsystems meet the latest regulatory requirements.
- Then, Lessons Learned from Manufacturing, Production, Warranty, and Service. Real-world data and feedback from manufacturing, production, warranty claims, and service reports provide invaluable insights into the performance and reliability of vehicle systems. In addition, documenting lessons learned from these areas can highlight areas for improvement, identify potential risks, and inform the development of more robust technical specifications. Therefore, this process helps in mitigating issues before they escalate, leading to more reliable and durable products.
- Finally, Rigorous Approval Process, Including Peer Review. The approval process for updates to technical specifications is typically rigorous, involving multiple stakeholders and often including a peer review component. Furthermore, this ensures that the updates are thoroughly vetted and that any potential issues are identified and addressed before the specifications are finalized. Hence, this process is crucial for maintaining the integrity and accuracy of the documentation.
Other Factors
Conseuently, not all documentation updates are related to specific product releases. Sometimes, high-level documents that cover a commodity or system as a whole need updating to reflect broader changes in technology, industry standards, or company policies. Additionally, it’s important to validate and verify proposed changes to ensure they are applicable to the general population of affected parts and products, not just a specific set of released items. Therefore, this broader validation ensures consistency and reliability across all related systems and components.
Conclusion: System and Subsystem Technical Specifications
In conclusion, maintaining up-to-date system and subsystem technical specifications is essential for successful vehicle product development. Furthermore, regular updates to these documents ensure that they reflect the latest requirements, regulatory standards, and lessons learned from real-world use. In addition, by following a structured and rigorous update process, organizations can ensure that their documentation remains accurate, comprehensive, and relevant, supporting the continuous improvement of their products. Finally, the role of Technical Specifications in this context cannot be overstated, as it serves as the foundation for all subsequent engineering and production activities.
References:
- Engineering Change Request – https://en.wikipedia.org/wiki/Change_management_(engineering)
- Engineering Change Request – https://georgedallen.com/engineering-change-requests-ecr-new-best-practices/
- Theory of Change – https://georgedallen.com/theory-of-engineering-change-in-new-product-development/
About George D. Allen Consulting:
George D. Allen Consulting is a pioneering force in driving engineering excellence and innovation within the automotive industry. Led by George D. Allen, a seasoned engineering specialist with an illustrious background in occupant safety and systems development, the company is committed to revolutionizing engineering practices for businesses on the cusp of automotive technology. With a proven track record, tailored solutions, and an unwavering commitment to staying ahead of industry trends, George D. Allen Consulting partners with organizations to create a safer, smarter, and more innovative future. For more information, visit www.GeorgeDAllen.com.
Contact:
Website: www.GeorgeDAllen.com
Email: inquiry@GeorgeDAllen.com
Phone: 248-509-4188
Unlock your engineering potential today. Connect with us for a consultation.
