Context

An enterprise ERP system is rolled out to employees across finance, procurement, and HR departments. Users have domain expertise (e.g., accountants understand invoices) but receive no system-specific training before their first session. The organisation cannot afford extended training programmes; the software must be self-explanatory to domain-knowledgeable users.

Trigger

A new user with relevant domain knowledge (e.g., certified accountant, experienced buyer) logs into the ERP for the first time, with no prior demo, tutorial, or instructor-led training.

Acceptance Criteria

• In a moderated usability test with ≥ 12 first-time users, ≥ 80% complete all 5 predefined core tasks (create purchase order, approve invoice, submit expense claim, generate monthly cost-centre report, update supplier record) within 30 minutes total, using only in-application guidance
• The task success rate (fully correct completion without facilitator intervention) is ≥ 75% per individual task across test participants
• No core task requires more than 7 sequential screen interactions (clicks, form fields, confirmations) to complete on the happy path
• When a user makes an input error, the system surfaces a contextual, actionable error message within 1 second; no error message references internal system codes or technical jargon
• After the test session, ≥ 70% of participants rate the system with a System Usability Scale (SUS) score of ≥ 68 (the industry-accepted “above average” threshold)
• The in-application help system answers the top-20 most common first-day questions (as determined by support-ticket analysis of comparable ERP deployments) without requiring external documentation or internet access