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Quiz

2948 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 areas2948 Architecture Fundamentals91 Distributed Systems101 Data Architecture90 Cloud Architecture87 Networking96 API & Integration Architecture87 Reliability & Resilience99 Observability92 Performance & Capacity Engineering100 Security Architecture105 Cost Architecture & FinOps102 Business Architecture103 Architecture Communication102 Enterprise Architecture100 Legacy Modernization102 AI-Era Architecture106 Software Architecture & Engineering93 Architecture Patterns94 Architecture Decision-Making101 The Architect's Meta-Skills102 Delivery & Release Engineering103 Platform Engineering & Developer Experience102 Testing & Quality Architecture102 Data Platform Architecture98 Streaming & Real-Time Data103 Data Governance & Semantics91 Frontend & Experience Architecture101 Edge, Mobile & IoT98 Regulatory & Data Protection Architecture99 Assurance, Audit & Model Risk98
Difficulty Any beginner intermediate advanced

7 questions in Application Rationalisation.

  1. Application Rationalisation advanced

    A multi-product SaaS company has accumulated overlapping internal systems - three notification services, four job schedulers, two feature-flag systems. How should rationalisation be approached?

    2 min answer freshworksrationalisationportfolioconsolidation
  2. Application Rationalisation advanced

    A rationalisation programme assessed 400 applications and identified £8m of savings. Two years later nothing has been saved. Why?

    2 min answer eaportfolioexecution
  3. Application Rationalisation advanced

    An application marked for retirement is switched off after its users are migrated. Nobody cuts the 14 interfaces that fed it or read from it. What happens over the following year?

    3 min answer rationalisationdecommissioningintegrationzombie
  4. Application Rationalisation advanced Multiple choice

    An enterprise consolidates nine departmental systems that all implement the same capability into one platform. Which risk materialises first and does most damage to the programme?

    2 min answer rationalisationconsolidationmigrationrequirements
  5. Application Rationalisation advanced

    An enterprise consolidates nine systems implementing the same capability into one. What are the risks, and what makes such programmes fail?

    2 min answer rationalisationconsolidationmigrationsecond-system
  6. Application Rationalisation advanced

    An enterprise has 900 applications, many overlapping. How do you decide what to keep, consolidate, replace or decommission — and why do rationalisation programmes usually stall?

    3 min answer portfoliorationalisationdecommissioningsix-rs
  7. Application Rationalisation advanced

    Your company acquires a competitor of about a third its size. Both run their own ERP, CRM, identity provider, data warehouse and payments integration. The board wants "one company" within 18 months and synergy numbers were already published. How do you decide what to consolidate and what to leave alone?

    3 min answer mergersrationalisationidentitycoexistence