Open Source Product Development
Open source product development (OSPD) refers to the development of open source hardware products performed in a collaborative development process allowing the participation of any interested person.
Characteristics of OSPD
OSPD is characterized by the simultaneity of two forms of openness: product openness (the development of open source hardware products as defined by the Open Source Definition) and process openness (the possibility for any interested person to take part in the collaborative development process). Generally, OSPD processes are relevant for complex products, whose definition requires the collaborative integration of inputs from multiple contributions. This however does not excludes the existence of OSPD processes for simple products. In that sense, OSPD specifies the concept of "open source innovation" as defined by Huizingh in the case of complex tangible products.
Process openness requires that the product development process is performed by a "community". The word "community" is used in contrast to "company" or "team" in order to highlight three fundamental differences with the governance of conventional industrial product development . First, communities are groups of individual people whose affiliation to institutions or companies has little influence on the role they play in the product development project. Second, the participation of a member to a community is voluntary, that is, each member defines independently his/her degree of involvment and the delivered workload is generally not paid. Third, the composition of a community is not set at the begining of the project but is open for the participation of any interested person and evolves along the self-defined involvment of the community members.
OSPD is "collaborative" in that it is performed with a certain simultaneity or parallelity in the work provided by the community members. In other words, OSPD is characterized by "intention for co-development" . Collaboration is defined as the coordinated work performed by a group using common material and following a common objective . It therefore delineates with sequential development loops of open source designs  where a product is sequentially developed and released by an isolated member then reused, further developed and released again by another community member, and so on.
- OSPD is mostly an internet phenomenon: continuity of work, acquisition of new members and collaboration in (eventually geographically distributed) communities is enabled by online data management and communication. The online platform has been described as the "core" of an OSPD project , whereas own research to be published shows that OSPD projects are not focused on one platform but tend to use several parallel tools and communication channels .
- In contrast to conventional industrial product development, the OSPD process is not characterized by clearly defined inputs, outputs and time-lines, but is more an on-going continuous improvement process.
- OSPD projects are not embedded in formal organisations but are characterized by a low level of restrictions, self-motivation and self-selection of modular tasks that can be performed by one person.
- OSPD processes not only aim at generating a functioning technology, but equally at personal development and process learning.
- The concept of OSPD implies the coexistence of three interwoven objects: a community involved in a project aiming at developing a product. While those three concepts are necessary for the emergence of OSPD, they do not necessarily have a 1:1 relation. There may be for example communities involved in different projects or projects aiming at developing different products.
Delineation with other terms
- Not all open source hardware projects are OSPD projects. OSPD projects are those of the open source hardware projects where a community-based collaborative product development process takes place.
- OSPD delineates clearly with crowdsourcing. In crowdsourcing, the outcome of the collaborative product development process is protected and the process is per definition centralized around a company or an institution. In OSPD, the outcome of the process is open source and the community is not necessarily centred around a company.
- The term open design may be used as an alternative to OSPD in literature. However, it is generally defined in less specific terms and is coined by conflicting definitions. Most of available definitions do not refer simultaneously to product openness (the development of open source hardware products as defined by the Open Source Definition) and process openness (possibility to any interested person to take part in the collaborative development process).
- Brulé and Valentin define openness in the context of open design as "the inclusion of people and their values during the project framing and ideation process" and as "a space left to users in the formalization process (choice of functions, interactions, aesthetcics...)". Open design is in this sense the inclusion of the end user in the development of the artefact through the sharing of designs that are low constrained and can be customized. Although this definition refers in some way to both process and product openness, it is expressed in more generic terms than the provided OSPD definition.
- In the Open Design Manifesto, Kadushin defines open design as "a method consist[ing] of two preconditions: 1. An Open Design is CAD information published online under a Creative Commons license to be downloaded, produced, copied and modified. 2. An Open Design product is produced directly from file by CNC machines and without special tooling." This definition does not refer to collaborative product development. This definition only refers to product openness.
- In the "Open Design Definition v. 0.5", Meninchinelli and colleagues define open design as "a design artifact project whose source documentation is made publicly available so that anyone can study, modify, distribute, make, prototype and sell the artifact based on that design. In this sense, the term open design is used as a synonym of open source hardware. It only refers to product openness.
- The definition of Aitamurto et al. is the definition which is at the closest to the definition of OSPD provided here: open design is a "process provid[ing] public access to participation in the design process and to the product resulting from that process, as well as the data created in the design process, inclunding technical details and other data and content gathered or generated during the process." In that sense, OSPD is a specification of open design where the terms of product openness are specified by the open source definition.
- Ostuzzi et al. define open design as a product property, i.e. the spaces of freedom offered by a product so it can be reappropriated and adapted to another context than the original one.
- Buitenhuis and Pearce as well as  use misleadingly the term open design as an equivalent to open source hardware, however including the collaborative aspect of developing open source hardware.
- Howard et al. also use the term open source development to name the "development of intangible as well as tangible products, through accessible and sharable platforms, where motivated communities with common practices share, adopt, produce and further develop innovative solutions, under commonly agreed credits and licensing. Open source development being free to anyone can still encompass revenue streams from related services and branding recognition, which enforce new business opportunities within the open source world." This term tends to be quite similar to the principle of OSPD, however not centred on a defined product.
- Huizingh, Eelko K. R. E. 2011. “Open Innovation: State of the Art and Future Perspectives.” Technovation, Open Innovation - ISPIM Selected Papers, 31 (1): 2–9.
- see for example Demazière, Didier, François Horn, and Marc Zune. “Des relations de travail sans règles ?” Sociétés contemporaines, no. 66: 101–125.
- Raasch, Christina, and Cornelius Herstatt. 2011. "Product Development in Open Design Communities: A Process Perspective." International Journal of Innovation and Technology Management 08 (04): 557–575.
- Leimeister, Jan Marco, and Eva Alice Christiane Bittner. 2014. “Collaboration Engineering.” WiSt - Wirtschaftswissenschaftliches Studium 43 (5): 243–249.
- for a description of such iterative processes, see Kyriakou, Harris, Jeffrey V. Nickerson, and Gaurav Sabnis. 2017. "Knowledge Reuse for Customization: Metamodels in an Open Design Community for 3D Printing." SSRN Scholarly Paper ID 2924083. Rochester, NY: Social Science Research Network.
- Fjeldsted, A.S., G. Adalsteinsdottir, T. J. Howard, and T. C. McAloone. 2012. "Open Source Development of Tangible Products-from a Business Perspective." In DS 71: Proceedings of NordDesign 2012, the 9th NordDesign conference, Aarlborg University, Denmark. 22-24.08.2012.
- Bonvoisin, Jérémy, Laetitia Thomas, Robert Mies, Céline Gros, Rainer Stark, Karine Samuel, Roland Jochem, Jean-François Boujut. "Current state of practices in open source product development." Accepted for publication at the ICED 2017 Conference (to be published)
- Brulé, Emeline, and Frédéric Valentin. 2016. "Of Open Bodies: Challenges and Perspectives of an Open Design Paradigm." In 50th Anniversary Design Research Society Conference. Proceedings of DRS’16. Brighton, United Kingdom.
- Ronen Kadushin, "Open Design Manifesto."
- Open Design Definition v. 0.5
- Aitamurto, Tanja, Dónal Holland, and Sofia Hussain. 2015. "The Open Paradigm in Design Research. Design Issues 31 (4): 17–29.
- Ostuzzi, Francesca, Peter Conradie, Lieven De Couvreur, Jan Detand, and Jelle Saldien. 2016. “The Role of Re-Appropriation in Open Design: A Case Study on How Openness in Higher Education for Industrial Design Engineering Can Trigger Global Discussions on the Theme of Urban Gardening.” The International Review of Research in Open and Distributed Learning 17 (4).
- Buitenhuis, A. J., & Pearce, J. M. (2012). "Open-source development of solar photovoltaic technology". Energy for Sustainable Development, 16(3), 379–388.
- Howard, T. J., Achiche, S., Özkil, A., & McAloone, T. C. (2012). "Open Design and Crowdsourcing: maturity, methodology and business models." Proceedings of the 12th International Design Conference DESIGN 2012, 181–190.
- Fjeldsted, A. S., Adalsteinsdottir, G., Howard, T. J., & McAloone, T. C. (2012). "Open Source Development of Tangible Products-from a business perspective". Presented at the NordDesign 2012, Aalborg, Dennmark.