Double Diamond Design Process Explained

Double Diamond Design Process Explained
Article by Mladen Milosevic
Last Updated: November 29, 2024

The Double Diamond design process is a structured framework for solving complex problems and fostering innovation. Recognized for its clarity and adaptability, this method allows teams to navigate the chaos of creative problem-solving with actionable steps. It is especially valued in UX, product design, and service design, where understanding user needs and aligning them with solutions is critical.

This guide explores the Double Diamond design process and its practical benefits, including enhanced team collaboration, systematic innovation, and versatile application. We’ll also discuss its drawbacks and share actionable insights on how to implement it effectively, making it an indispensable tool for modern designers.

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What Is the Double Diamond Design Process?

The Double Diamond design process is a visual roadmap for tackling design challenges. It thrives on the interplay of divergent and convergent thinking, applied in two distinct phases: the Problem Space and the Solution Space. This methodology ensures designers systematically explore, define, develop, and implement ideas effectively.

Divergent and Convergent Thinking

Divergent thinking is an expansive and creative process that explores multiple perspectives and possibilities. It allows designers to brainstorm freely, uncovering opportunities that might otherwise remain hidden. However, its unstructured nature can sometimes lead to a lack of focus.

Convergent thinking counters this by being methodical and focused, driving toward specific, actionable solutions. This balance is critical in the design process, ensuring creative exploration does not overshadow practical implementation.

The transition between divergent and convergent thinking, often called the "groan zone," is a pivotal moment. In “The Diamond of Participation,” Sam Kaner describes this phase as challenging, prompting designers to abandon less viable ideas and align efforts toward achievable goals.

Problem Space and Solution Space

The first phase, the Problem Space, focuses on identifying and defining the problem to be solved. Known as the "Research" diamond, this stage emphasizes understanding user needs, synthesizing data, and framing the core issue. By addressing this stage thoroughly, designers ensure they are solving the right problem, setting the foundation for meaningful and innovative solutions.

The second phase, the Solution Space, involves realizing and implementing the solutions. This incorporates activities like visualizing ideas, iterating, and experimenting to bring concepts to life. Here, the goal is to solve the problem right by aligning design outcomes with user needs. It provides the essential validation and scaling required to ensure that solutions resonate with the intended audience.

In essence, the Double Diamond design process combines the creativity of divergent thinking with the precision of convergent thinking. Its structured approach bridges the gap between identifying problems and implementing effective solutions, guiding designers to create impactful and user-centered outcomes.

Four Phases of the Double Diamond Design Process

Four Phases of Double Diamond Design Process
Source: Design Council

The Double Diamond design process contains four key phases: Discover, Define, Develop, and Deliver. These phases guide designers through the process of thoroughly exploring the problem space, refining their understanding, and ultimately crafting solutions that are tested and validated before release. Each phase is critical in ensuring that the final product is innovative and aligned with user needs and business goals.

Step 1: Discover

The Discover Phase is about immersing yourself in the problem through extensive research. It’s where you seek to truly understand the context of the challenge rather than assuming its scope. During this phase, designers engage in exploratory research — from conducting field visits to reviewing past studies — to clarify the problem.

This exploration can include market research, user testing, and even immersion in the environment where the design will be used. The key to success in this phase is organizing and managing all the data collected effectively, making it accessible for the team members as they move forward.

Step 2: Define

In the Define Phase, the information gathered in the Discover phase is filtered and synthesized into a clear, actionable problem statement. This phase involves analyzing the data, identifying key insights, and organizing them to create a precise definition of the challenge.

The Define phase ensures that all stakeholders are aligned, and that the project stays within feasible limits, accounting for financial, logistical, and market constraints. This is also the phase where designers make crucial decisions about what is not part of the solution, helping to keep the scope manageable and realistic.

Step 3: Develop

The Develop Phase is where ideas begin to take shape into potential solutions. It encourages a broad exploration of creative possibilities, informed by the research and problem definition from the previous phases. This stage involves brainstorming, prototyping, and testing while the feedback is constantly gathered to refine ideas.

Companies often use continuous testing throughout this phase, with teams conducting real-time evaluations to make quick adjustments. By collaborating across disciplines, teams can identify and address potential issues early, minimizing risks as the design progresses. This phase is where real graphic design takes form, moving from abstract concepts to tangible solutions.

Step 4: Deliver

The Deliver Phase is the final step, where the design is tested, validated, and prepared for release. During this phase, the design is polished, fine-tuned, and prepared for launch. It also includes evaluating the solution’s impact on customer satisfaction and ensuring the product complies with legal and regulatory standards.

After launch, the work doesn’t stop. Ongoing feedback and continuous improvements are crucial to maintaining the design’s relevance and effectiveness.

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Benefits of Double Diamond Process for Teams and Modern Innovation

The Double Diamond design process is an incredibly effective framework for enhancing collaboration and problem-solving. By promoting a shared understanding of the problem and solution spaces, it encourages multidisciplinary collaboration, continuous improvement, and innovation at every stage. Here are its key advantages:

  • Enhanced Problem-Solving

    The core of the Double Diamond model is its emphasis on truly understanding the problem before jumping into solution mode. By focusing on empathy and users’ needs, the team ensures that any solution developed will be grounded, increasing its chances of success.
    This rigorous understanding of the problem leads to more effective, user-centered solutions that align with real-world needs. This feature is evident in eCommerce website design processes in which the Discover phase could involve understanding user purchasing habits, while the Define phase narrows this research into specific design goals.
  • Process Clarification

    One of the most powerful aspects of the Double Diamond is how it clarifies and organizes the design process. The Double Diamond model divides this process into manageable, actionable stages, each with a clear goal and purpose. This provides teams with a structured framework to follow and offers a clear path forward. At the same time, it doesn’t restrict creativity; instead, it creates space for flexibility and adaptation based on the project’s unique needs.
  • Improved Collaboration and Fostering Team Synergy

    The Double Diamond excels at promoting collaboration among multidisciplinary teams. It breaks down silos by encouraging cross-departmental cooperation. Designers, engineers, product managers, marketers, and other stakeholders work together in a shared space where their diverse expertise can contribute to problem-solving. Not only does it improve the efficiency of the design process, but it also brings a wealth of perspectives to bear on the problem at hand.
  • Continuous Improvement

    An important feature of the Double Diamond design process is its iterative nature. The framework provides multiple opportunities for reflection, testing, and refinement. As teams go through this process, they continuously assess their work, seeking out feedback and incorporating lessons learned. This cyclical process helps identify potential flaws early and enables teams to adapt their designs based on real-world feedback. This continuous improvement is crucial for evolving designs, ensuring each decision is informed.
  • Focus on Innovation

    The Double Diamond encourages innovation by balancing structure with creativity. This balance helps designers think outside the box while providing a systematic approach to evaluating and refining ideas.
    With this process, teams are encouraged to brainstorm and experiment with multiple solutions yet ensure that every idea is grounded in the findings from the earlier phases. This structured yet flexible environment fosters innovative thinking while preventing teams from losing sight of the problem they are solving.
  • Universal Applicability

    Although initially conceived for design, the Double Diamond process is relevant across a wide range of industries beyond traditional design fields. From software development to service design, healthcare, and even education, the principles of problem discovery, definition, development, and delivery can be applied in various contexts. The framework’s versatility suits any industry where problem-solving and user-centered innovation are essential.

Drawbacks of the Double Diamond Design Process

While the Double Diamond design process offers numerous benefits for organizing and enhancing collaboration, there are also several challenges and limitations to consider. Understanding these drawbacks can help teams decide when and how to implement the framework effectively, and whether adjustments are needed for their unique project context.

  • Resource-Intensive

    Here’s one of the primary drawbacks of the Double Diamond framework: it demands significant time, effort, and often financial investment, especially during the Discover and Define phases. This slow pace can hinder the ability to adapt quickly to market changes or shifting priorities, reducing the framework's applicability for rapid prototyping or fast-turnaround projects.
  • Linear Structure and Limited Flexibility

    While structured for clarity, the Double Diamond can feel overly linear and rigid in real-world applications. The model assumes that projects start at the Discover phase and move through each distinct stage in a predetermined order. However, many projects begin mid-process, with stakeholders or designers already having a defined problem or solution in mind.
    Additionally, unexpected challenges or discoveries often require designers to loop back to previous phases, which the rigid structure doesn’t easily facilitate. This can hinder the process, especially when continual refinement and problem reassessment are critical to successful outcomes. In short, while the Double Diamond encourages exploration, it doesn’t always allow for the adaptive iteration that many projects demand.
  • Overemphasis on Discovery and Definition

    The Double Diamond model strongly emphasizes the Discover and Define phases, which can sometimes lead to overinvestment in research and problem definition. In some cases, teams might spend too much time analyzing and gathering information, leading to delays in developing solutions.
    While a thorough understanding of the problem is critical, excessive research time may create analysis paralysis, which means the team cannot proceed with the design.
  • Not Always Ideal for Rapid Prototyping or MVPs

    The Double Diamond process can feel overly structured for projects focused on rapid prototyping or creating a minimum viable product (MVP). In these cases, a more flexible and fast-paced approach to design is often preferred, with teams working quickly to prototype, test, and iterate based on real-time feedback.

The emphasis on thorough research and problem definition at the start of the Double Diamond framework may be seen as a luxury in these environments, where speed and adaptability are prioritized over comprehensive analysis.

How the Design Process of Double Diamond Shapes UX, Service, and Product Solutions

The Double Diamond design process is highly effective in shaping UX, service, and product solutions because it provides a structured approach that fosters deep understanding and creativity. That, while ensuring solutions are user-centric and well-executed. Here’s how it brings value to these design types:

UX Design

In UX design, the Double Diamond helps designers fully immerse themselves in the user’s needs and behaviors by encouraging thorough research during the Discover phase. This comprehensive understanding allows for creating more intuitive, empathetic designs that truly address user pain points.

The Define phase helps distill this research into clear, actionable problem statements to make the solutions grounded in user needs. Additionally, the Double Diamond allows for ongoing testing and validation throughout the design process, ensuring the user experience remains optimal.

Service Design

Service design benefits from Double Diamond's focus on understanding both the customer and organizational perspectives. The Discover phase uncovers insights into customer interactions, pain points, and desires across various touchpoints.

By aligning these findings with business goals in the Define phase, the framework enables designers to create seamless service experiences that benefit both the user and the organization. The continual nature of the process helps refine these services, leading to sustainable, impactful solutions that evolve as the needs of the user and market change.

Product Design

The Double Diamond process ensures that product design is built on a foundation of solid research and validation. By spending time in the Discover and Define phases to fully grasp market needs, trends, and user feedback, designers can develop products that meet both functional and emotional needs.

The framework's focus on testing and iterating in the Develop and Deliver phases ensures that the final product is innovative and practical, reducing the risk of costly mistakes. This is particularly important for products that need to adapt to changing market conditions or user expectations, as the process encourages flexibility and constant refinement.

Double Diamond Design Process: The Bottom Line

The Double Diamond design process is more than just a framework — it’s a mindset that empowers designers to explore deeply, refine ideas, and create impactful solutions. It blends exploration and focus, guiding teams through complex problems to innovative, user-centered solutions.

The process fosters creativity through divergent thinking while converging on the best possible outcome. It adapts to various design types allowing for constant iteration and improvement. By embracing the Double Diamond, designers can craft experiences that are meaningful, efficient, and aligned with real-world needs, ensuring lasting impact in every project.

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Double Diamond Design Process FAQs

1. How is the Double Diamond design process different from other frameworks?

The Double Diamond design process differs from other frameworks in that it uniquely balances divergent and convergent thinking, ensuring comprehensive problem exploration and focused solution development.

2. What tools or methods pair well with the Double Diamond process?

Tools like design sprints, journey mapping, and user interviews complement the Double Diamond framework by facilitating research, ideation, and testing.

3. How do you handle unexpected challenges during the process?

Revisiting earlier phases and maintaining flexibility are vital in adapting to unforeseen obstacles.

4. How can small teams implement the Double Diamond process with limited resources?

Even small teams can benefit from the Double Diamond design process principles by prioritizing key phases and leveraging lightweight tools like rapid prototyping.

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