Companies are under increasing pressure from global competition while at the same they need to offer flexible products to meet individual customer requirements. Therefore, modularised capital goods are designed and manufactured to meet both challenges. This paper presents an approach to identify necessary changes in the production process and summarises the changes in the automotive and aerospace industries due to modularisation. Three key findings are identified: increased outsourcing potential, production in a value creation network with specialised manufacturers and joint investments.

The vehicle exterior design conveys a variety of visual information. Among these are the brand identity, assumed characteristics, and the vehicle's age or newness. While previous research focusses mainly on the first two attributes, we broaden the perspective by examining the age perception for vehicle model portfolios across brands.

Information of age is embedded not only in branding but also in the entirety of a vehicle's exterior design features. Therefore, this paper examines how participants of a self-reported study perceive individual models inside successive product portfolios without typical branding. The stimulus patterns were derived from 12 different series of BMW, Mercedes-Benz and Audi and edited accordingly. A total of 67 models from the years 1968 to 2019 were presented and evaluated in terms of perceived age, model and brand recognition.

The results show that most vehicles are perceived as newer than their actual age, successive model generations are clearly distinguishable and participants were able to sort all models in their correct chronological order. Finally, design-related age perception and knowledge-based age perception are introduced as possible underlying concepts of the visual perception of product age.

The open source design (OSD) is an autonomous community dedicated to design new hardware products, peer-to-peer, with collaborative design and intellectual property copyleft, using web platforms to share projects. The research about these platforms indicates absence of important configuration management features as versioning, headlines and coding. One possible explanation for such finding is that these products are developed by non-designers. This argument was investigated comparing projects from two OSD communities, on the same theme, but with different origins. The hypothesis is that academically-influenced communities present better design management practices for repositories than others created by non-specialists. The hypothesis was not verified and the results show that there is no difference in the proportion of BO types or level of detail. However, it was identified five distinct characteristics: those of academic origin the communication is better detailed, the purpose is associated with methodological support, the structure of information promotes redundancy, the target-audience is the technicians and the success of project is associated with the number of interactions.

For a company it is necessary to know, which products can be configured using carry-over-parts or the same technology. This can become quite relevant in the context of automobile electrification, where complex mechatronic systems are used. Consisting of various mechanical components, these systems perform the required function while being actuated by electronically controlled motors. To solve this, a novel mechanism for data driven portfolio analysis based on product platforms using knowledge-based systems is proposed in this paper. Further, the mechanism is tested by applying it to an electrical motors' case study. Using this method, all possible combinations of a product platform are calculated and finally displayed in different product portfolios. Additionally, all the non-feasible motor designs are removed from the solutions portfolio using the acquired knowledge base and performing design checks. The latter are employed for penalising and eliminating from the pareto-front of the designs, which violate the thermal, mechanical and acoustic constraints. The generated product portfolio can be used further to expand the systems engineering collaboration and support decision-making.

This paper introduces a new method to help designers assess the impact of changes to a product platform when introducing a new variant. The method evaluates a platform design by investigating how changing some components will impact other platform design perspectives such as material, function, manufacturing processes and assembly time. To assess the usefulness of this method, it was applied to assess platform changes resulting from successive generations of scanner heads from two manufacturers. The method indicated that one manufacturer improved their scanner head design by improving the functionality of its components and assembly time. Whereas, the other manufacturer's new scanner head used more material and manufacturing processes without benefiting other design perspectives. Compared to existing product family evaluation methods which focus only on maximising commonality between product variants, the proposed method considers potential platform design improvements and assesses them from multiple design perspectives before deciding on reusing existing components or implementing the new design. The information from this method will also complement existing commonality indices.

The status of Smart Home Appliances (SHAs) in the smart home industry has been raised as major components of a smart home. To design a good SHA, diverse stakeholders in the smart home ecosystem need to have a common understanding of smart homes and SHAs. However, the studies on what they are, especially those reflecting practitioners’ point of view, have been scarce.

In this research, we conducted systematic literature reviews and practitioner interviews using the concept mapping method to identify the attributes of SHAs depending both on academia and industry. In addition, we suggest a framework of the smart home ecosystem which describes how those attributes are revealed in the relationships among SHAs, users, and external stakeholders.

Since all of the interviewees are Korean SHA development professionals, the findings from this research could have been limited to the current status of the Korean SHA industry. Nonetheless, we expect that this research would contribute to building a consensus on what smart homes and SHAs are and provide the designers and developers of SHAs with systematic perspectives on smart homes.

In product family design, the commonality of products and performance are competing objectives when designers build platforms. The commonality makes it efficient to manufacture products while it will cause performance loss of products. In this paper, we assume that performance functions evaluate the performance of a product. Targets of performance functions are set for each product depending on the product's property. The designs that satisfy the target of performance functions are denoted as ‘good’ design points. By using ‘good’ design points, a weighted set cover problem (WSC) is applied to formulate the combinatorial optimization problem, which maximizes the commonality by minimizing the number component attributes. A recursive greedy algorithm is proposed to handle the general cost function in the problem for product family design. The formulation and the algorithm are tested for a linear three-degree-of-freedom (3DOF) model. In numerical experiment, the proposed method determines optimal values of the components which are suspensions, stabilizer bars, and tires in the vehicle model.

A common strategy which has in many cases become a necessity in product developing companies is to apply platform thinking to some extent. Engineer-to-order (ETO) companies are firms that need to invest in a significant amount engineering time in each product ordered by customers. These companies have in the past been known to not be fully able to apply platform strategies. An area of concern to product development is the design and manufacture of machine tools aimed for part manufacturing which is a large investment and a critical bottle neck. As a response to these challenges the design platform (DP) concept was developed which is founded on the re-use of company assets. This paper aims to investigate the application of the DP in a company designing and producing unique high-pressure die casting tools for different applications and customers. To enable companies of this character to utilize platform thinking to a higher degree and thus increase the efficiency in product development, a focus is set on modelling and managing relations within the DP. In addition, a PDM system setup is proposed together with an integrated support application for the realisation in industry.

The democratisation of technologies, knowledge and activities have been changing the world of designers, blurring the boundaries between amateur and professional designers, especially within the connected phenomena of the Maker Movement and Indie Designers. Within this context, how can be collaborative design processes documented, analysed, managed, shared? This article investigates the role of meta-design digital tools for the facilitation of distributed systems of creative agents, formally trained and informal amateurs that collaboratively design and produce artefacts. It documents a research study organised for testing a digital meta-design platform with users and the researcher as meta-designer: the results provide insights for improving the platform but also for building a comprehensive research through design framework that connects meta-design research and practice for exploring the role and nature of meta-design and meta-designers in facilitating collaborative design processes starting from their description with digital ontologies.