In the aerospace industry, systems engineering practices have been exercised for years, as a way to turn high-level design
objectives into concrete targets on system functionality (e.g. range, noise, and reliability). More difficult is to decompose
and clarify sustainability implications in the same way and to compare them against performance-related capabilities
already during preliminary design. This article addresses the problem of bringing the important—yet typically high level
and complex—sustainability aspects into engineering practices. It proposes a novel integrated model-based method that
provides a consistent way of addressing the well-known lack of generic and integrated ways of clarifying both cost and
value consequences of sustainability in early phases. It further presents the development and implementation of such
approach in two separate case studies conducted in collaboration with a major aero-engine sub-system manufacturer.
The first case concerns the assessment of alternative business configurations to maintain scarce materials in closed loops, while the second one concerns the production technology of an aero-engine component. Eventually, this article highlights the learning generated by the development and implementation of these approaches and discusses opportunities for further development of model-based support.

https://journals.sagepub.com/doi/pdf/10.1177/1687814015590215

A model-based approach for sustainability and value assessment in the aerospace value chain

Value-Driven Design provides a framework to enhance the systems engineering processes for the design of large systems. By employing economics in decision making, Value-Driven Design enables rational decision making in terms of the optimum business and technical solution at every level of engineering design. This paper explains the application of ValueDriven Design to the aero-engine system through two case studies, which were conducted through workshops under the Rolls-Royce plc Advanced Cost Modeling Methodologies project. The Surplus Value Theory was utilized to provide a metric that can trade-off component designs with changes in continuous and discrete design variables. Illustrative results are presented to demonstrate how the methodology and modeling approach can be used to evaluate designs and select the value-enhancing solution.

/pdf/application-of-value-driven-design-to-commercial-aero-engine-24usaa6v1v.pdf

Application of Value-Driven Design to Commercial Aero-Engine Systems

Current systems engineering (SE) standards do not address ‘Value’ in much detail. Yet, understanding what drives the generation of stakeholder value in a given business context, is fundamental to promoting a common and clear vision throughout the extended enterprise, of what should be the focus of their early, conceptual work at all levels of development. This paper presents a Value-Driven Design (VDD) methodology designed to strengthen the value and requirements maturation process within an extended enterprise setting. The work presented is the result of a three and a half year European program (CRESCENDO) within the aerospace sector. The VDD methodology is introduced and explained in an industrial aircraft development context and a selection of enabling methods and tools associated to the VDD methodology is presented.

/pdf/value-driven-design-a-methodology-to-link-expectations-to-4iyqg0ethy.pdf

Value-driven design: a methodology to link expectations to technical requirements in the extended enterprise

In recent times a service-dominant logic is permeating the design of complex systems. However, in spite of their appeal, initiatives such as Product Service Systems (PSS) have not become mainstream ...

http://bth.diva-portal.org/smash/get/diva2:930726/FULLTEXT01

Value-driven product service systems development: Methods and industrial applications

Sustainability is increasingly recognized as a key innovation capability in the organization. However, it is not always evident for manufacturers how sustainability targets shall be “mixed and matc ...

https://www.mdpi.com/2071-1050/11/7/1952/pdf

Multi-Criteria Decision Making for Sustainability and Value Assessment in Early PSS Design

During the initial phases of a new aircraft program, many conceptual decisions are made, concerning primarily the early product positioning with regard to competitors, the definition of the program's high level objectives, the architectural design choices and the selection of the preliminary design solutions. All these decisions are made on the basis of their assumed “Value”, i.e. each choice is expected to generate value for the customer and/or other stakeholders. Although many methods and tools are used to support the necessary analyses and trade-off activities, plus the subsequent decision-making; value related information such as concrete value drivers that allow for early conceptual orientation at different development levels are not usually shared explicitly within the extended enterprise between the concerned organisations.



Current Systems Engineering (SE) standards do not address ‘Value’ in much detail. Yet, understanding what drives the generation of stakeholder value in a given business context, is fundamental to promoting a common and clear vision throughout the extended enterprise, of what should be the focus of their early, conceptual work at all levels of development. In light of increasing pressures to reduce development cycles and times-to-market, companies at several levels within the extended enterprise have to start working ever earlier in a programme context, long before their input requirements will have been cascaded down to them.



This paper introduces a novel and iterative approach to address this problem – by making available business context related ‘Value Creation Strategies' including ‘Value Drivers' that can be cascaded down within the extended enterprise very early in a new aircraft development program. This will allow companies at any level to start their early, conceptual work on a much more relevant basis than would otherwise be the case. This Value-Driven Design (VDD) methodology has been developed, and will be validated in the context of the CRESCENDO (Collaborative and Robust Engineering using Simulation Capability Enabling Next Design Optimisation) research project1. It does not introduce new value measurement methods, but rather aims at articulating a generic process, making use of Value representation and Value cascading as a complement to “traditional” requirements cascading.

7.4.1 Towards a Value‐Driven Design Methodology – Enhancing Traditional Requirements Management Within the Extended Enterprise

Overview of Value Driven Design Research : Methods, Applications and Relevance for Conceptual Design

/pdf/overview-of-value-driven-design-research-methods-1hs564o4og.pdf

Anne Monceaux

Papers

Value-driven design: a methodology to link expectations to technical requirements in the extended enterprise

7.4.1 Towards a Value‐Driven Design Methodology – Enhancing Traditional Requirements Management Within the Extended Enterprise

Overview of Value‐Driven Design Research: Methods, Applications, and Relevance for Conceptual Design