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2667 questions of the kind that actually get asked — in interviews, in architecture review boards, and by the person who has to run the thing at 3 AM. Every answer states the trade-off rather than the slogan, and says when the obvious choice is the wrong one.

All areas2667 Architecture Fundamentals81 Distributed Systems101 Data Architecture90 Cloud Architecture87 Networking86 API & Integration Architecture78 Reliability & Resilience88 Observability81 Performance & Capacity Engineering90 Security Architecture95 Cost Architecture & FinOps92 Business Architecture93 Architecture Communication91 Enterprise Architecture91 Legacy Modernization92 AI-Era Architecture86 Software Architecture & Engineering84 Architecture Patterns84 Architecture Decision-Making91 The Architect's Meta-Skills92 Delivery & Release Engineering93 Platform Engineering & Developer Experience92 Testing & Quality Architecture90 Data Platform Architecture88 Streaming & Real-Time Data93 Data Governance & Semantics81 Frontend & Experience Architecture91 Edge, Mobile & IoT88 Regulatory & Data Protection Architecture90 Assurance, Audit & Model Risk88
Difficulty Any beginner intermediate advanced

93 questions in Business Architecture.

  1. Business KPIs intermediate

    A streaming platform's engineering team optimises for latency and availability while the business measures watch time and creator retention. How should these connect?

    2 min answer kpissloalignmentmeasurement
  2. Business KPIs intermediate Multiple choice

    An architecture group wants one metric on the company's executive dashboard, next to revenue and churn. Which one earns its place?

    2 min answer kpisexecutivesunit economicsmeasurement
  3. Business KPIs advanced

    How would you justify a six-week reliability investment to a commercial stakeholder?

    2 min answer business-casekpiscommunicationoutcomes
  4. Business KPIs advanced

    Instacart's 2023 S-1 reported 2022 revenue of $2,551M, split $1,811M transaction and $740M advertising and other. You are the architect for the ad-serving path inside the shopping app. The interviewer asks which business KPI your next six months of work moves, and how you would prove it moved. Talk me through your answer.

    3 min answer instacartkpisattributionadvertising
  5. Business Processes intermediate Multiple choice

    A food-delivery platform handles 220,000 orders a day. About 1.8% of orders raise a refund dispute. Automated rules settle most of them but 22% reach a human agent who spends roughly 9 minutes per case. A fully loaded agent costs about £38,000 a year and delivers about 1,500 productive hours. Roughly what does the manual tail cost per year?

    3 min answer process-automationestimationunit-economicsexception-handling
  6. Business Processes intermediate

    A manual onboarding process handles about 400 cases a month. Automation covers the standard path, and after six months roughly 20% of cases still go to a person because each has some exception. The team proposes automating the remaining exceptions. How should this be sequenced?

    2 min answer process automationexceptionslong tailoperations
  7. Business Processes intermediate

    A process takes eleven days end to end and involves four hours of actual work. What does that tell you and where do you look?

    2 min answer processflowhandoffswait-states
  8. Business Processes advanced Multiple choice

    A travel platform's booking process spans six systems and takes days to change. Where should the process logic live, and what is the trade-off?

    2 min answer business-processorchestrationworkflowcoupling
  9. Capability Mapping advanced Multiple choice

    A capability map published nine months ago is quoted in every strategy deck. Each level-3 capability lists between four and eleven supporting systems and no system supports only one capability. The last two quarters of funding decisions contradict the map's own priorities. The two capabilities the strategy calls differentiating are both rated mature. What is the diagnosis?

    3 min answer capability mappingdiagnosisinvestmentartefacts
  10. Capability Mapping intermediate

    A services marketplace maps its architecture by listing its microservices. Why is that not a capability map, and what does the difference change?

    2 min answer urban-companycapability-mapbusiness-architectureboundaries
  11. Capability Mapping intermediate

    An enterprise builds a capability map and it is never used again. What makes capability mapping produce decisions rather than documentation?

    2 min answer capability-mappingeadecisionsheatmaps
  12. Capability Mapping advanced

    Salesforce's 2009 SIGMOD paper describes serving many tenants from shared tables with a metadata layer, rather than giving each customer their own schema. Which business-model decision forced that, and what did it cost them?

    3 min answer salesforcemulti-tenancymetadatabusiness model