| 1 | # UI/UX Playbook v1 |
| 2 | |
| 3 | ## Purpose |
| 4 | Practical UI/UX standards for clarity, trust, and task completion. |
| 5 | |
| 6 | ## Core Outcomes |
| 7 | - Users complete key tasks with minimal confusion. |
| 8 | - Interface state and system state stay understandable. |
| 9 | - Product feels responsive, predictable, and recoverable. |
| 10 | |
| 11 | ## Evidence-Based Working Format |
| 12 | - Fact: capture observed user behavior (completion, hesitation, retries, support signals). |
| 13 | - Hypothesis: define what change should improve and why. |
| 14 | - Check: run a focused validation on one flow with measurable outcome. |
| 15 | - Decision criterion: predefine success/failure thresholds before launch. |
| 16 | - Confidence mark: separate certainty level from preference or narrative. |
| 17 | |
| 18 | ## Design Principles |
| 19 | - Clarity before novelty. |
| 20 | - Progressive disclosure for complex workflows. |
| 21 | - Strong defaults with explicit overrides. |
| 22 | - Consistent interaction grammar across screens. |
| 23 | |
| 24 | ## Information Architecture |
| 25 | - One primary action per screen context. |
| 26 | - Stable navigation landmarks and naming. |
| 27 | - Domain terms aligned with user mental model. |
| 28 | - Error-prone actions isolated and signposted. |
| 29 | |
| 30 | ## Interaction and Feedback |
| 31 | - Immediate feedback for every meaningful user action. |
| 32 | - Loading, success, and failure states are explicit. |
| 33 | - Empty states explain what to do next. |
| 34 | - Destructive actions require clear confirmation and recovery path. |
| 35 | |
| 36 | ## Accessibility and Inclusion |
| 37 | - Keyboard navigation for core flows. |
| 38 | - Sufficient contrast and readable typography. |
| 39 | - Status not conveyed by color alone. |
| 40 | - Text labels remain understandable without prior context. |
| 41 | |
| 42 | ## Performance Experience |
| 43 | - Perceived speed matters: avoid silent waits. |
| 44 | - Prioritize first usable content and key interactions. |
| 45 | - Keep state transitions stable under slow network conditions. |
| 46 | |
| 47 | ## UX Validation Loop |
| 48 | - Observe real task completion, not only preference feedback. |
| 49 | - Track where users hesitate, retry, or abandon flows. |
| 50 | - Convert recurring friction into design hypotheses. |
| 51 | - Validate with small iterative changes and measurable outcomes. |
| 52 | |
| 53 | ## Metrics |
| 54 | - Task completion rate. |
| 55 | - Time-to-complete for critical flows. |
| 56 | - Error/retry rate per flow. |
| 57 | - Support requests tied to UI confusion. |
| 58 | - Satisfaction signal for changed flows. |
| 59 | |
| 60 | ## Revisit Triggers |
| 61 | - Growth in abandonment or retry loops. |
| 62 | - Frequent support tickets around the same screens. |
| 63 | - Low confidence in critical action outcomes. |
| 64 | - Feature growth creating navigation or terminology drift. |
| 65 | |
| 66 | |