Working Backwards and Customer-Centric Innovation - Why AWS Service Development Is Fundamentally Different
An analysis of Working Backwards, the core of AWS's service development process, explaining how the customer-centric development culture starting from PR/FAQ differs from Azure and GCP's product development approaches.
Service Quality Is Determined by the Development Process
When comparing cloud services, attention tends to focus on feature lists and benchmark results. However, what determines the long-term quality and direction of a service's evolution is the development process and organizational culture behind it. AWS service development is based on a unique process called Working Backwards. This process is rooted in Amazon's overall culture and explains why AWS services tend to converge on "what customers truly need." Azure tends to develop services around integration with Microsoft's existing product lineup, while GCP tends to build services around Google's technical strengths. This difference in starting points shapes the character of each provider's services.
The Working Backwards Process in Detail
Working Backwards is a process that develops products by working backward from the "customer experience." When a new service or feature idea emerges, AWS starts by writing a press release (PR) and FAQ. This press release is an internal document and is not published externally. The press release describes, from the customer's perspective, whose problem the service solves, what the specific benefits are for customers, and how it differs from existing solutions. It defines the value customers will experience first, rather than technical implementation details. The FAQ includes both anticipated customer questions and internal stakeholder questions. By pre-answering questions like "Why are existing services insufficient?" "What will the pricing be?" and "Is there a migration path?", the service design is validated from the customer's perspective. Only after this press release and FAQ are approved by leadership does technical design and implementation begin. In other words, the definition and validation of customer value must be complete before a single line of code is written.
90% Born from Customer Feedback
AWS publicly states that "90% of services are born from customer feedback." This is not merely a marketing message but a consequence of the Working Backwards process. AWS product managers collect customer challenges through diverse channels including direct customer conversations, support ticket analysis, forum feedback, and Q&A sessions after re:Invent presentations. Collected challenges are converted into service proposals through the Working Backwards process. For example, Lambda was born from the customer voice of "I don't want to manage servers." DynamoDB responded to the demand to "reduce the burden of operating a scalable database." Graviton processors are a hardware-level answer to the universal desire to "reduce computing costs." The remaining 10% represents innovations where AWS gets ahead of customers. These are cases where AWS's technical teams anticipate and materialize latent needs that customers haven't yet articulated. The Nitro System and Inferentia belong to this category.
Azure's Approach - Microsoft Ecosystem Integration
Azure's service development uses integration with Microsoft's existing product lineup as a key axis. Integration between Active Directory and Azure AD (now Entra ID), Office 365 and Azure coordination, SQL Server and Azure SQL Database compatibility, .NET and Azure Functions affinity - providing a consistent experience within the Microsoft ecosystem is the core of Azure's differentiation strategy. This approach has clear strengths. For enterprises already using Microsoft products, migrating to Azure is the option with the least friction. Azure Hybrid Benefit, which lets you bring Windows Server licenses to Azure, is also attractive from a cost perspective. However, the flip side of this approach is that Azure's service design tends to remain an extension of Microsoft's existing products. Rather than working backward from customer challenges, the design tends to work forward from alignment with Microsoft's technology stack. The frequent renaming and rebranding of Azure services can also be interpreted as a result of prioritizing alignment with Microsoft's overall brand strategy.
GCP's Approach - Technology-Driven Innovation
GCP's service development tends to start from Google's technical strengths. BigQuery externalized Google's large-scale data processing technology (Dremel), Kubernetes open-sourced Google's internal container orchestration (Borg), and Spanner commercialized Google's internal distributed database. This technology-driven approach produces technically excellent services but can create gaps with customers' actual needs. Google's internal workloads differ in both scale and nature from typical enterprise workloads, so technology optimal for Google isn't necessarily optimal for all customers. Additionally, GCP is influenced by Google's culture of "experiment and sunset." Google actively launches new services but tends to discontinue those that don't gain traction. While consumer service shutdowns like Google Reader, Google+, and Stadia are well known, GCP has also had cases that concern enterprise customers, such as the discontinuation of IoT Core (2023).
How Development Culture Shapes Service Character
The differences in development approaches among the three companies are clearly reflected in service character. AWS services focus on "solving customer problems," with a tendency to prioritize practicality and operational ease over technical sophistication. Comprehensive documentation and careful handling of edge cases are also manifestations of the customer-centric development culture. Azure services have "Microsoft ecosystem integration" as their strength, featuring ease of migration for existing Microsoft users and a unified management experience. However, for users outside the Microsoft ecosystem, the benefits of that integration diminish. GCP services are characterized by "technical advancement," with BigQuery's performance and Kubernetes' completeness being industry-leading. However, concerns about service continuity and the maturity of enterprise support remain challenges. When selecting a cloud platform for the long term, it's important to understand not just current service features but the development culture and direction of evolution behind them. AWS's development culture based on Working Backwards is the most reliable approach in terms of continuously meeting customer needs. To learn about product development methodologies, related books (Amazon) are also helpful.
Summary
AWS's Working Backwards process institutionalizes customer-centric service development starting from press releases and FAQs. This culture ensures AWS services are designed around actual customer challenges, supporting the track record of 90% being born from customer feedback. Azure uses Microsoft ecosystem integration and GCP uses technical advancement as their respective axes, but AWS surpasses both in the thoroughness of its customer-centric development culture. When selecting a cloud platform, understanding not just current feature comparisons but the culture and philosophy behind service development is what determines long-term satisfaction.