What Is a Product Design Specification: Why Is It Important & How to Create It?

The product design specification (PDS) is an essential element in any software development process, allowing professionals to avoid extra work and allocate resources wisely at the same time. It is 101% impossible to create a successful product without a clear outline on the table.

With the final goal in mind, which is customer satisfaction, creating an effective PDS is critical. It implies careful planning, coherent teamwork, and attention to detail. In this article, you will learn more information about the nature of this product roadmap, its must-have elements, and how to elaborate on a workable PDS.

What Is Product Design Specification (PDS)?

Any good product design specification is centered around the product that maximally meets the user needs. This concept implies detailing the software's design, functionality, and entire performance by all parties involved.

However, developing any software also requires the avoidance of product overload with features and functions that bring no value. On the other hand, it is crucial to make the product easy to use, but overall functional, at the same time. In this case, the PDS develops a strategic vision of the product along with technical and design implications, helping to bring a workable and balanced product concept into life.

Key Components of a Product Design Specification

As noted before, the PDS (product design specification) is a comprehensive document, helping balance the product's essentials, which are:

• Problem solving. The PDS outlines the problem a future software product will solve as well as specific ways for doing so.
• Customer overview. Who are the end customers who will interact with the product? What are their age, average incomes, preferences, etc? It is essential to approach software development with a clear overview of who the end users of the product are.
• Product path. The PDS is more than an outline of functions and user preferences. It is a roadmap of how the end users will deal with the product.
• Functional requirements. This side of the PDS emphasizes the functions and features of the future software.
• Design and its possible constraints. Among others, the PDS also outlines how the end users will interact with the future software, including its mockups and wireframes. Aside from that, the PDS also covers any possible hardware limitations or regulatory requirements that may be in place.
• Non-functional requirements. On top of the above, it is also essential to explain the software's overall performance, usability, security, and other advanced features, if any.
• Technologies applied. The PDS will list and explain the technologies that will be used for product development and how they will be applied.
• Data models and flow diagrams. In addition, the PDS also explains the data and workflows within the end product, helping to define and arrange complex data flow processes more effectively.
• Success criteria. The key measure of success is the product's popularity among the end users. The PDS outlines this feedback by explaining key metrics for its assessment, such as the number of registrations, the level of engagement and retention, product performance, etc.

Importance of Product Design Specification

Developing a comprehensive and detailed product design specification (PDS) is not a matter of convenience alone. It ensures numerous benefits, facilitating the overall work on the software:

• Eliminating any communication gaps. Teams consisting of different professionals with varying attitudes towards the same features may experience communication gaps sometimes. The PDS is an action plan for all professionals to stay in touch with each other and ensure proper communication to make the product evolve.
• Preventing the scope of work from bloating. A clear and balanced scope of work is critical for both professionals working on the project and end users. Excessive functions and overloading an app are the major threats to the final results. The PDS provides a clear and detailed outline of works, no more, no less than needed.
• Ensuring consistency and coherence. Development is never limited to writing a checklist of functions and tasks only. It provides a common understanding of the app's functionality and design features. The PDS helps to reduce user confusion and cognitive load, making the entire interaction between different teams easier. The PDS helps to keep everyone involved on the same page.
• Optimization. This implies balancing and optimizing the scope of functions, tasks, as well as costs. On top of that, you can also balance the ideas appearing in the course of development and design. This effort will prevent overloading your product with excessive features.
• Measuring results and success of the end product. Result tracking and consideration, especially during testing, are critical for the overall project's success. The PDS acts as a tool helping to compare what you planned to make and what kind of product you have actually done.
• Joining all interested parties on one site. The PDS (product design specification) is the right one for this purpose. It joins developers, designers, customers, as well as end users involved in testing. This document helps the overall work stay well-organized.

To have or not to have – that is unquestionable. The PDS will bring clarity, consistency, and optimization to your teamwork.

How to Write a Product Design Specification

If you want to create a workable product design specification, here is a step-by-step guide:

1. Clearly define the problem. You need to be clear about the problem your users face and how you plan to fix it. It is a determinant of your project's future success or failure. So, make sure you address real user needs and problems.
2. Know your customers. Understand clearly their preferences and expectations, as well as what plans they pursue. On top of that, it is essential to center your operation around the user pain points. Never limit your effort to describing the age, geography, average income, and similar general stuff. It is never enough in the modern competitive market.
3. Elaborate on and evaluate customer routes. Reflect visually the customer route to ascertain how customers will use the product. This effort will not only prevent any haphazard work on one of the critical aspects but also help to detect possible problematic points. They may reduce the level of customer engagement if they are not fixed.
4. Detail the product's functions. It is crucial to list and describe in detail both functional and non-functional characteristics of your product. At this point, it is essential to range each group, defying the compulsory and desired options.
5. Create a visual and interactive design. It is vital to find a workable format. Among others, discuss and find out the most appropriate wireframes, prototypes, layouts, etc.
6. Clarify technical aspects. Engage developers at this point in the process maximally. Emphasize APIs and platforms you plan to use. The attention to these aspects will help to fully realize the technical functionality of the project, which is crucial for its success. It is also vital when it touches the functions and speed of performance.
7. Determine KPIs. Clarify the metrics for measuring the success of the end product. These may be such measurable results as a number of registrations, reduction of time for completing tasks, level of customer retention and satisfaction, etc.

Effective Tools for Developing PDS

The product design specification (PDS) document should never be developed manually. This endeavor has to be accomplished by using effective tools. Our agency recommends using these apps to organize your entire work and ideas, as well as interaction between different teams:

• Notion. This tool is perfect for arranging coherent work and ensuring effective project management across various teams. It allows setting different organizational tasks and note-taking.
• Confluence. This is another helpful app that allows developers and designers to produce effective documentation. It suits well to create product requirements and user stories.
• Figma. It is an excellent collaborative space for developers and designers to interact in real-time and develop superior products.
• Miro. It is a compelling visual collaboration tool to create and share diagrams, mind maps, and many other types of visuals.
• Milanote. It is a real visual workspace allowing different team members to brainstorm, plan their joint work, and organize ideas. It offers effective features for this purpose, including notes, templates, and images.

Most Common Mistakes when Developing PDS

PDS document seems to be a universal and versatile option in the course of any product design process, and it is so. However, it is better to be mindful and attentive to some common mistakes when developing it:

• Overloading the document. The PDS should bring clarity and make the entire work organized. It will fail to achieve this goal when it is overloaded and poorly organized.
• Ignoring valuable UX considerations. When you are overwhelmed and want to bring your idea into reality, it is important not to lose user needs from your focus, including feedback during testing. Among the primary points to highlight, we should note an intuitive interface, accessibility from different devices and operating systems, including a mobile version, time of response, etc. Ensuring a balanced scope of functions without overloading an app is another must-have in this context.
• Failure to update the PDS as the product evolves. Software development is a dynamic process that needs permanent attention to detail and updates. Both should be accurately added in the PDS as they appear.
• Neglecting to involve interested parties in the process. The PDS is aimed at ensuring a balanced document reflecting the interests of all the parties interested in using the end product. Aside from that, it should also accurately reflect the contributions and feedback from different teams working on the product.

When you are attentive to these common mistakes and avoid them, the product design specification (PDS) reserves its full potential to develop an effective end product.

Best Practices to Develop Workable Product Design Specifications: Experience of Our Agency

If you want to elaborate on a balanced and workable product design specification, our agency advises you to use these approaches:

• Early start of collaboration. Start effective communication and collaboration on joint tasks as early as possible. Forming a clear joint view is a must-have that will greatly ease your further work.
• Use tools for effective work. If you want to make a more organized work, apply effective tools. You may take the basic options listed in this review. They are tested and verified, even TOP.
• Keep the clarity and consistency at a high level. All product design specifications are reference documents that facilitate collaboration and result tracking. That's why these documents should be maximally clear.
• PDS is a "live page" of your project. As the project evolves and some unforeseen challenges appear, the PDS should be updated accordingly. On top of that, don't neglect any extra ideas inspired by the software development and design processes. As our experience shows, they can make the product even better.

Turn Superior Ideas into Superior Products through the Effective PDS from Professionals!

A PDS (product design specification) is more than a plan with a list of features and actions. It is a road map for the team and customers who work jointly to foster tech progress. Haphazard work and miscommunication are major threats in this case, which PDS helps to prevent effectively.

If you have ambitious plans that need dedicated work and non-standard solutions, professionals from our product design agency are ready to help you bring them into reality. We know how to organize even highly complex work and can think outside the box to make the product work. Let's make your product competitive. Request a quote for professional services!