Demo: resolving "real-time stock" vs "keep the ERP as master"
On This Lesson 3 topics
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In this lesson
make a conflict explicit, offer options, and get a decision.
Draft outline details
Step by step
- State both requirements: stores want stock visible in seconds; finance wants the ERP to remain the master for inventory value.
- Surface the underlying needs: avoid overselling; keep an audited ledger.
- Draft options: A near-real-time inventory service fed by store events with nightly ERP reconciliation; B direct ERP calls (limited by ERP API capacity); C full inventory replacement.
- Compare cost, risk, time, and fit to both needs; recommend A with explicit safety stock.
- Planned mistake: the architect picks an option silently and moves on. Fix: record the trade-off and take it to the named decision owner (CIO with finance) for a decision.
- Update the baseline with the decision and affected requirement IDs.
Check your understanding
Why separate the stated demand from the underlying need?
Show answer
Different options can satisfy the need that no single demand allows.
Practice
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