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Circular Design Toolbox

Welcome to the Enterprise Estonia Circular Design Toolbox! 

The Circular Design Toolbox helps organisations to take the first step in the circular design process by providing a systematic overview of circular economy and design principles as well as circular business models. Here you will find a set of tools that can be used on their own, in various combinations, or as a whole for a more circular design of new or existing products and services. 

Before you start, read the recommendations here that help you get the most out of the toolbox. 

Circular Design Toolbox

Before you start

The toolbox is built on the logic of a double diamond model – discover, define, develop, deliver– which can be followed to go through a thorough development process to design your product/service and organisation in a more circular way. There are 15 tools in the whole process, but it is also possible to take one step at a time and combine only some of the tools to achieve the desired goal. 

All organisations can benefit from circular design, but each needs a different approach. The toolbox contains diverse tools, several of which are focused on manufacturing companies, where the topics of circularity are often multi-layered and complex. Service companies can also successfully use the same tools by adapting them to their needs. 

You can use the tools both online on Miro collaboration platform and as printed worksheets. You can find the recommended print format in the name of each tool and help material file. When you print the tools out, take pictures of all the input of the development process to store it digitally. This way you can come back to the different stages of the process if necessary. 

In the Miro sample field in the toolbox, you will find the necessary instructions to copy and use Miro yourself. Do not enter your organisation’s information in the sample field for everyone to see! 

To use the toolbox, it is important to understand the concepts that help keep the tool instructions clear and consistent: 

  • Organisation– a generic term that covers companies, institutions and other operating entities 
  • Ecosystem stakeholders – an umbrella term for stakeholders involved in the creation, provision or use of a solution 
    • Partner – an organisation or entity who helps to create, produce, develop or market a solution (subcontractor, supplier, design partner, reseller) 
    • User – a person or entity who actually uses a product or service 
    • Client – an organisation who makes the purchasing decision and is the transaction partner (B2B) 
  • Solution – a generic term for either a product, service or combination of both 
    • Product – a tangible, physical object.
    • Service – an intangible activity or function provided to a user or client.

  1. Check out the contents of the toolbox and read the introduction to circular economy and design to get an overview or to remind yourself of the foundations of circular economy. If you come across an unfamiliar term, look it up in the glossary. 
  2. Complete the self-assessment questionnaire with your team to understand where your organisation stands in terms of sustainability (Choose language from right corner above). Or download the self-assessment questionnaire.
  3. Check out the tools (objective, instruction, estimated time spent, people to be involved, difficulty level, worksheet, recommendations, additional materials, source) and choose the tools that suit best the needs and objectives of your organisation. Download the PDF versions of the tools or use the toolbox in Miro. 
  4. If you feel you need expert support during the design process, you will find the necessary contacts in the designer network 
  5. Use the toolbox as your development partner and share your feedback at [email protected] to help the toolbox develop as well. 

Tools

The aim of the tool is to understand the various stages of circularity, to assess the current state of the organisation and to agree on the circularity ambition in the 5-year perspective. 

A good place to start to realise the circularity ambition is with a circular design audit. A circular design audit with a bill of materials (BOM) is a diagnostic tool that aims to integrate design and circular aspects into an organisation’s product and service development process. The audit scrutinises the organisation’s current design strategy and practices, and assess the capabilities and potential of circularity. 

 

The circular design audit helps to: 

  • identify your design ability and performance; 
  • identify where the biggest impact of the circularity lies for the organisation; 
  • identify possible circular design solutions and approaches that can be used as a basis for further product or service development; 
  • formulate the terms of reference for the circular design. 

Ecosystem mapping provides an overview of the stakeholders in an organisation at three levels (organisation, partners, policy makers). At the heart of the ecosystem is the user, for whom the organisation creates value. The mapping will provide an understanding of the scope of the stakeholders’ interest and influence in the organisational ecosystem and the role they play in achieving the circularity ambition. 

As-is value chain mapping provides an overview of the current state of the value chain, i.e. the resources used, the key stakeholders, potential inefficiencies and macro-level influences on the various parts of the chain. 

The aim of the research plan is to formulate a clear research objective, research questions and activities to gather input to move towards the circularity ambition. The implementation of the research plan will result in a better understanding of the user/client’s objectives, needs, (consumer) behavior, the nature of the problem to be solved, the context, the root causes or the stakeholders involved, depending on the purpose of the research. 

The purpose of user interviews in the circular design process is to understand the needs, habits and challenges of the stakeholders being researched in order to design circular solutions corresponding to them that support the effective use of resources. 

The aim of the tool is to summarise all the input collected from the implementation of the research plan, analyze it and formulate insights and conclusions. 

The aim of the user persona is to understand the needs and challenges of the main target group in order to design a sustainable value proposition that is appropriate for the user. The purpose of the partner persona (e.g. supplier, investor) is to map the objectives and needs of a key stakeholder in the value chain in order to build strong collaborative relationships that enable circularity.

Circular Design Brief is a very important intermediate goal in the design process, where the conclusions or challenges identified in the discovery phase are translated into opportunities and the scope and impact of the project are defined. It is important to note that a circular design’s terms of reference treat environmental and user needs equally. Setting sufficiently precise terms of reference will help the team maintain focus in the next steps. The terms of reference can (but does not have to) be formulated as the question ‘How might we …’ (HMW). 

Once you have terms of reference for your circular design, this tool will help you gather as many ideas as possible. As a result, you will have a set of structured ideas whose feasibility and usefulness can be further explored. 

The aim of the exercise is not to find the ideal solution, but to collect as many feasible (and also crazy) ideas as possible by brainstorming and developing ideas together. 

While in the developing phase it was important to gather as many solutions and ideas as possible without criticism, now the task is to separate the wheat from the chaff. As a result of the exercise, the most important solutions that can be realised will be visually prioritized in the top right-hand corner. 

The tool aims to help you learn about the various business models of the circular economy. At this stage, it is important to get to know the logic of value creation both upstream (supply chain) and downstream (towards the client). Both sides will help you find, understand and maintain the value embedded in your products and materials. 

You have a clear picture of the existing, or as-is value chain. The aim of developing the future, or to-be value chain is to think through the various options and address the risks, biggest inefficiencies and negative impact points in the value chain. 

The circular business model canvas aims to place the circular solution in the context of an existing business and map how it relates to the organisation. The tool summarises the entire previous journey on a single page and helps to identify the financial and other

The aim of the tool is to help test the performance of the circular business model in a real-life context and to plan concrete actions for the next 100 days. Activities are supported by setting clear objectives, outlining the steps to achieve them and assigning roles within the team. You can use the RACI model to assign roles. RACI is an acronym formed from the prefixes of the following roles: responsible, accountable, consulted and informed. 

Tools

The aim of the tool is to understand the various stages of circularity, to assess the current state of the organisation and to agree on the circularity ambition in the 5-year perspective. 

A good place to start to realise the circularity ambition is with a circular design audit. A circular design audit with a bill of materials (BOM) is a diagnostic tool that aims to integrate design and circular aspects into an organisation’s product and service development process. The audit scrutinises the organisation’s current design strategy and practices, and assess the capabilities and potential of circularity. 

 

The circular design audit helps to: 

  • identify your design ability and performance; 
  • identify where the biggest impact of the circularity lies for the organisation; 
  • identify possible circular design solutions and approaches that can be used as a basis for further product or service development; 
  • formulate the terms of reference for the circular design. 

Ecosystem mapping provides an overview of the stakeholders in an organisation at three levels (organisation, partners, policy makers). At the heart of the ecosystem is the user, for whom the organisation creates value. The mapping will provide an understanding of the scope of the stakeholders’ interest and influence in the organisational ecosystem and the role they play in achieving the circularity ambition. 

As-is value chain mapping provides an overview of the current state of the value chain, i.e. the resources used, the key stakeholders, potential inefficiencies and macro-level influences on the various parts of the chain. 

The aim of the research plan is to formulate a clear research objective, research questions and activities to gather input to move towards the circularity ambition. The implementation of the research plan will result in a better understanding of the user/client’s objectives, needs, (consumer) behavior, the nature of the problem to be solved, the context, the root causes or the stakeholders involved, depending on the purpose of the research. 

The purpose of user interviews in the circular design process is to understand the needs, habits and challenges of the stakeholders being researched in order to design circular solutions corresponding to them that support the effective use of resources. 

The aim of the tool is to summarise all the input collected from the implementation of the research plan, analyze it and formulate insights and conclusions. 

The aim of the user persona is to understand the needs and challenges of the main target group in order to design a sustainable value proposition that is appropriate for the user. The purpose of the partner persona (e.g. supplier, investor) is to map the objectives and needs of a key stakeholder in the value chain in order to build strong collaborative relationships that enable circularity.

Circular Design Brief is a very important intermediate goal in the design process, where the conclusions or challenges identified in the discovery phase are translated into opportunities and the scope and impact of the project are defined. It is important to note that a circular design’s terms of reference treat environmental and user needs equally. Setting sufficiently precise terms of reference will help the team maintain focus in the next steps. The terms of reference can (but does not have to) be formulated as the question ‘How might we …’ (HMW). 

Once you have terms of reference for your circular design, this tool will help you gather as many ideas as possible. As a result, you will have a set of structured ideas whose feasibility and usefulness can be further explored. 

The aim of the exercise is not to find the ideal solution, but to collect as many feasible (and also crazy) ideas as possible by brainstorming and developing ideas together. 

While in the developing phase it was important to gather as many solutions and ideas as possible without criticism, now the task is to separate the wheat from the chaff. As a result of the exercise, the most important solutions that can be realised will be visually prioritized in the top right-hand corner. 

The tool aims to help you learn about the various business models of the circular economy. At this stage, it is important to get to know the logic of value creation both upstream (supply chain) and downstream (towards the client). Both sides will help you find, understand and maintain the value embedded in your products and materials. 

You have a clear picture of the existing, or as-is value chain. The aim of developing the future, or to-be value chain is to think through the various options and address the risks, biggest inefficiencies and negative impact points in the value chain. 

The circular business model canvas aims to place the circular solution in the context of an existing business and map how it relates to the organisation. The tool summarises the entire previous journey on a single page and helps to identify the financial and other

The aim of the tool is to help test the performance of the circular business model in a real-life context and to plan concrete actions for the next 100 days. Activities are supported by setting clear objectives, outlining the steps to achieve them and assigning roles within the team. You can use the RACI model to assign roles. RACI is an acronym formed from the prefixes of the following roles: responsible, accountable, consulted and informed. 

Useful Reading

A circular economy is an economic system based on business models that enable resources to be used sustainably. The circular economy supports efficient and long-term material use: reusing and recycling, longevity of products and reduction of production waste. In a circular economy, meeting people’s needs through services becomes more important than owning products.  

The circular economy works on several levels: micro (products, companies, consumers), meso (industrial symbiosis, cooperation) and macro (cities, countries). It aims to preserve the environment and ensure economic prosperity and social equity for both present and future generations. 

The circular economy is based on three main principles which are applicable in all sectors and value chains. They encourage organisations to rethink the design, production and circularity of their product or service. 

  • Avoiding waste and pollution 
  • Keeping products and materials in use 
  • Regenerating natural systems 

The circular economy diagram (also known as the butterfly diagram) created by the Ellen MacArthur Foundation divides material flows in two (figure A): 

  1. the biological cycle includes renewable and biodegradable materials (e.g. wood and food) that can safely be returned to the biological cycle of nature as a resource; 
  1. the technical cycle includes extracted materials (e.g. sand and gravel) that should be kept in circulation for as long as possible in the context of the circular economy to maximise their value. 

The two cycles are separated for the purpose of purity of material flows – it is easier to collect and reuse unmixed and uncontaminated material flows, especially in the technical cycle to extend the life of products. 

 

The materials that need to be kept in circulation are in particular those whose supplies are limited, whose extraction is harmful to the environment or whose processing is very energy-intensive. 

For example, some metals: 

  • aluminium is very energy-intensive to produce, but 100% recyclable without loss of quality; 
  • copper is an important conductor of electricity and a critical material for the green transition – it is used in electric cars and wind turbines, for example; 
  • iron and steel are widely used and can be recycled, but their reprocessing is costly; 
  • stainless steel, which contains chromium and nickel, has a long life but its reprocessing process is complex; 
  • rare earth metals, such as neodymium and praseodymium, which are used to produce batteries, wind turbines and electronics. 

In order to ensure the competitiveness of industry and to reduce material dependency, the European Commission has identified a number of critical raw materials (CRMs) whose circular use is of strategic importance, such as: 

  • graphene and graphite – used in the manufacture of electronics and batteries; 
  • cobalt – used in lithium-ion batteries; 
  • lithium – essential for batteries and energy storage; 
  • nickel – needed for the manufacture of stainless steel and batteries; 
  • platinum, palladium and gold – needed especially in the electronics industry. 

The circular economy diagram helps organisations see opportunities to contribute to biological material regeneration and keep technical materials in circulation for as long as possible (see R-strategies). Understanding material flows can help organisations identify where they can create value by improving resource use and extending the lifecycle of their products and services. 

10 R-strategies are principles for implementing the circular economy, helping to create efficient circular flows of products and materials and to preserve the value of resources throughout their lifecycle. R-strategies provide a clear structure for prioritising circular interventions and are like a cheat sheet for assessing opportunities to increase circularity at various stages of your value chain. 

The hierarchical sequence of R-strategies is based on the potential impact of their implementation on circularity (figure B). For example, a greater positive effect can be achieved by reducing (R2) the amount of resources used in production compared to recycling (R8) materials from a product in its end of life, which is more resource-intensive. 

Natural resource regeneration (R10) is part of the biological cycle and focuses on the restoration and conservation of ecosystems. The goal of the strategy is not only to avoid harm, but to create positive impact on the environment – for example through increasing biodiversity, improving soil fertility, supporting water circulation or carbon sequestration. Regenerative practices include regenerative agriculture, agroforestry (trees are grown around or between crops or pastures) and linking industrial processes to activities that regenerate nature (using bio-waste to repair soil and bind carbon). This is a way to ensure that economic activity does not damage the environment, but helps to regenerate and strengthen it. 

See the glossary for a longer explanation of R-strategies. 

A prerequisite for making your organisation more circular and implementing R-strategies is circular design where the value chain, business model, processes and products and services take into account the principles of the circular economy throughout their lifecycle – from an idea to actual use and from there to end-of-life. 

Circular design is a design process based on the principles of the circular economy, aiming to create low-waste products and services that preserve the value of resources in the economic system for as long as possible. Circular design enables to create products and services that are sustainable, repairable, reusable and recyclable. 

Circular design works best when the circular economy principles and R-strategies are selected according to the needs of the organisation, partners and users. This helps to ensure that the design process is a win-win situation for all stakeholders. 

Economic benefits   

Re-using the same resource in a material flow or creating additional revenue streams by implementing new business models can help reduce dependence on new raw materials, whose prices and availability are volatile, and optimise costs through more efficient use of materials. Product-as-a-service solutions help to reduce product lifecycle costs and build and maintain long-term relationships with users. 

 

Risk mitigation   

At EU and national level, the requirements for: 

  • extending the lifecycle of products, 
  • recycling and repairing, 
  • and considering environmental impacts throughout the lifecycle of products 

keep getting stricter. A circular design helps companies to anticipate regulatory risks and be ready for green transition trends. 

 

Competitive advantage  

Innovation and standing out from competitors provide an advantage in the market. Consumers increasingly value sustainable products, in particular export market customers. Circular design helps create products and services that last longer, are easier to repair, renew and reuse. This allows your company to offer added value to the informed client and increase loyalty. In addition, this kind of design allows the company to strengthen its environmental reputation and to meet ESG (environmental, social and governance) expectations of investors and partners.

Downstream – the end of the value chain, i.e. all activities related to the sale and use of the product. 

Examples of downstream activities in the circular economy: 

  • collection of products after use (e.g. repurchase programs, repair centers); 
  • recycling or remanufacturing – using materials from old products to make new ones; 
  • service-based business models – providing rental, sharing or maintenance services to extend the life of a product. 

 

Dematerialization – creating the value of economic activity or consumption by means of a smaller amount of physical resources. In the context of the circular economy, this refers to reducing material use without reducing the benefits provided by a product or service. Examples of dematerialization in the circular economy: 

  • digitization – replacing physical products with digital solutions (e.g. music streaming instead of CDs, e-invoices instead of paper invoices); 
  • products as services – consumers are offered an option to use rather than physically own (e.g. car sharing, tool rental, furniture leasing); 
  • smart and multi-purpose design – a single product can perform multiple functions or has a longer lifecycle (e.g. modular furniture that can be reconfigured as needed); 
  • lightweight materials and compact solutions – using less material to achieve the same function (e.g. reducing packaging, smart product design). 

Lifecycle analysis (LCA) – a systematic analysis of the environmental impact of products or services throughout their lifecycle, from raw material sourcing to waste management.  

Jobs to be done – the goal that the user/client/partner wants to achieve and for which they can ‘recruit’ any product or service. Jobs are divided into three parts: 

  1. Main or functional job – describes what needs to be achieved. 
  1. Emotional job – describes how a person wants to feel. 
  1. Social job – describes how a person wants to be seen by others. 

Example: people don’t want a reusable water bottle, they want to satisfy their thirst without creating disposable plastic waste. 

Environmental impact – the direct or indirect effects on human health and well-being, the environment, cultural heritage or property that are likely to result from an activity. 

Sustainable design – a broad design approach that aims to create products, services and systems that are environmentally sustainable, socially equitable and economically viable (e.g. creating a community-centred waste-free neighbourhood). 

Linear economic model – a traditional system of production and consumption that follows a ‘produce-use-throw away’ logic. Natural resources are taken into use, products are made from them, the products are used and discarded as waste at the end of their lifecycle, often without reusing or recycling.  

Planetary boundaries – a concept proposed by J. Rockström and colleagues (2009) to define the preconditions for human development. Planetary boundaries are the levels of human impact beyond which adverse environmental changes become irreversible, threatening the resilience of ecosystems and the ability of people to cope. Global changes that increase pressure on the Earth’s ecosystem include climate change, stratospheric ozone depletion, loss of biodiversity, chemical pollution, ocean acidification, increased freshwater consumption, land use change, nitrogen and phosphorus pollution (overloading), and aerosol loading into the atmosphere. 

Circular design – a design process based on the principles of the circular economy, aiming to create low-waste products and services from materials already in circulation that preserve the value of resources in the economic system for as long as possible (e.g. redesigning a product and its business model to offer the product as a service instead). 

Circular material use rate – an indicator that shows the share of circular material in the overall material use. 

Circular economy – an economic system based on business models that enable resources to be used sustainably. The circular economy supports efficient and long-term material use: reusing and recycling, longevity of products and reduction of production waste. In a circular economy, meeting people’s needs through services becomes more important than owning products. The circular economy works at micro (products, companies, consumers), meso (industrial symbiosis, cooperation) and macro (cities, countries) levels, aiming to preserve the environment and ensure economic prosperity and social equity for both present and future generations. 

Circularity – applying the circular economy in a more narrow perspective through specific techniques and solutions, product development and design, business models, etc. 

R10 strategies 

  • Refuse (R0) – making a product or part of a product redundant, abandoning it, providing the same function by means of a radically different product or avoiding the use of some resources (e.g. harmful chemicals) in production. 
  • Rethink (R1) – diversifying the use of products (e.g. sharing products or using multifunctional products). 
  • Reduce (R2) – producing products more efficiently by using less natural resources, including water, hazardous substances, power and materials. 
  • Reuse (R3) – using a product (e.g. glass bottle) repeatedly for its original purpose. Reusing reduces the amount of waste and emissions and saves natural resources. 
  • Repair (R4) – repairing and maintaining a broken or non-functioning product so that it can be used for its original purpose. 
  • Refurbish (R5) – refurbishing and/or upgrading an older product so that an improved version can be used for the product’s original function.  
  • Remanufacture (R6) – using parts of a discarded product in the same function in new products. 
  • Repurpose (R7) – using a discarded product or parts of a discarded product in a different function in new products. 
  • Recycle (R8) – a waste recovery operation where the material contained in the waste is used in a production process for its original or other purpose (e.g. recycling paper, remelting glass, re-refining oils, re-recovery of metal compounds), including biorecycling (composting). 
  • Recover (R9) – reusing materials or energy contained in waste (e.g. through incineration). 
  • Regenerate (R10) – improving or restoring the condition of natural resources, ecosystems and biodiversity (e.g. increasing soil fertility, reforestation, carbon sequestration). 

Doughnut economy – a concept (2012) created by the economist Kate Raworth on complementing planetary boundaries with social boundaries. Falling below them means unacceptable suffering for human society – hunger, ill health, poverty, etc. The space between planetary and social boundaries forms an environmentally safe and socially equitable space for the full functioning and management of society. In terms of design, this area forms a doughnut, whose inner and outer circles create a boundary outside of which living is not sustainable. 

Regenerative economy – an economic model that aims not only to prevent damage, but to regenerate and strengthen ecosystems, communities and resources. A regenerative economy is based on circularity, biodiversity conservation, carbon sequestration and social equity. It seeks to devise systems that create more value than they consume. 

Product-as-a-service – a business model where the user does not buy the product itself, but gets the right to use it with value-added services. Ownership remains with the manufacturer or service provider, who is responsible for maintaining, extending the life of and ultimately recycling the product. 

Environmental Product Declaration (EPD) – a quantitative, science-based and comparable environmental label that provides transparent and verified information on the environmental impact of a product or material over its lifecycle, based on the LCA. 

Industrial symbiosis – a collaboration between various industries whereby a resource, production residue or by-product in one company’s inventory becomes a raw material for another company (see e.g.  Auvere Agropark and OSA Service). This innovative approach makes it possible to reduce waste and resource consumption, contributing to both environmental sustainability and economic efficiency. Read more: Industrial symbiosis | Ringmajandus

Reverse logistics – the movement of products, materials or packaging in the consumption chain back to the manufacturer or processor for reuse, repair, reprocessing or recycling. 

Value chain – the sequence of stages that products or services pass through – from the sourcing of raw materials to manufacturing, consumption and end-of-life. In the context of the circular economy, the value chain refers to a whole system that aims not only to create value, but also to preserve and reuse value for as long as possible and to avoid waste from the outset. The focus is not only on selling the product, but also on services, lifecycle management and maximising the value of the resource. Cooperation between various stakeholders in the value chain (e.g. suppliers, manufacturers, service providers, recyclers, consumers) is essential. 

Ecodesign – a design method that aims to minimise the environmental impact of a product or service throughout its lifecycle – from the selection of materials to manufacturing, use and end-of-life. Ecodesign focuses on energy and resource efficiency and pollution reduction (e.g. reducing the environmental footprint of smartphones). 

Upstream – the beginning of the value chain, i.e. all activities before the product is manufactured and reaches the market. 

Examples of upstream activities in the circular economy: 

  • design – designing products and packaging to be durable, repairable, reusable or recyclable; 
  • choice of materials – using environmentally friendly, recycled or renewable materials; 
  • cooperation between suppliers – with an aim to gain access to circular inputs (e.g. recycled raw materials, waste as input material). 

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