[ PICTOGRAM CASE HISTORY ]
Material Symbols Stop Circle Icon (Outlined). Needs intervention.
Visible referent: stop circle. Intended message: The icon must communicate Stop Circle in a digital interface.. The report separates observed asset evidence, submitted context, and public evidence signals.
0.64
PCS
0.42
CLL
0.51
NTR
[ FEATURED PICTOGRAM ]
pictoclarity / material-symbols-stop-circle-outlined
Output - Material Symbols Stop Circle Icon (Outlined)
Assessing the communicative effectiveness of the Stop Circle icon
This reviewed catalog report estimates clarity for Stop Circle in default interface contexts. Scores are screening estimates and do not replace user testing.
0.64
PCS
PictoClarity Score
0.42
CLL
Convention Learning Load
0.51
NTR
Neurocognitive Transfer Risk
[ HOW THE CASE READS ]
From Input To Public Evidence.
The application stores structured evidence. The public page turns it into a readable pictogram case history.
01
Submitted Context
Framework output for the Material Symbols Stop Circle icon in the outlined style.
02
Primary Finding
Primary referent: stop circle.
03
Metric Reading
Implied function: The icon must communicate Stop Circle in a digital interface..
04
Public Recommendation
Conduct representative user testing across diverse user groups to validate semantic clarity and reduce confusion with neighboring interface actions.
[ EVIDENCE SCREENING ]
What The Estimate Surfaces.
Semantic Transparency Score
Input
Expected
Estimated
0.59
Confusion Risk Index
Input
Possible
Estimated
0.56
Readability Test Score
Input
Visual
Estimated
0.75
PictoClarity Score
Input
Estimated
Estimated
0.64
Needs intervention 0.64
The pictogram carries meaningful clarity risk. The estimate applies to this pictogram, this meaning, and this public context.
Last Reviewed
Jun 24, 2026
[ SCORE SCALE ]
The Public Verdict Has A Range.
The level explains the estimated context. It is not a certification.
0.80-1.00
Strong clarity
The pictogram communicates well in this context.
Use it, then keep testing with real users.
0.65-0.79
Usable with support
The pictogram works with labels or context.
Pair it with text and monitor interpretation.
0.50-0.64
Needs intervention
Current report
The pictogram carries meaningful clarity risk.
Improve the symbol before relying on it.
0.00-0.49
Not reliable
The pictogram does not communicate enough alone.
Replace it or add strong alternative support.
[ CONVERGENCE PROFILE ]
Where Meaning Converges.
The profile compares visual evidence, semantic extraction, cultural recognition, time, and cognitive context. It describes estimated convergence, not universal validity.
Convergent meaning profile
The radar shows where meaning converges. It does not certify universal validity.
Area
0.33
Balance
0.84
Perceptual
0.75
Semantic
0.59
Functional
0.60
Cultural
0.49
Temporal
0.50
Neurocognitive
0.56
Context Independence
0.61
Collective Resonance
0.49
Weakest Axis
Cultural Convergence
How strongly recognition holds across cultural evidence and assumptions.
Strongest Axis
Perceptual Convergence
How strongly visual form survives size, blur, contrast, and detail loss.
| Axis | Score | Description |
|---|---|---|
| Perceptual Convergence | 0.75 | How strongly visual form survives size, blur, contrast, and detail loss. |
| Semantic Convergence | 0.59 | How strongly extracted meaning converges on one interpretation. |
| Functional Convergence | 0.60 | How strongly the symbol maps to the intended function. |
| Cultural Convergence | 0.49 | How strongly recognition holds across cultural evidence and assumptions. |
| Temporal Convergence | 0.50 | How strongly meaning persists over time without semantic decay. |
| Neurocognitive Convergence | 0.56 | How strongly the symbol follows AAC pictogram reading: transparent referent, concrete action, low convention load, and support. |
| Context Independence | 0.61 | How strongly meaning survives without external labels or placement cues. |
| Collective Resonance | 0.49 | How strongly public evidence supports shared recognition and persistence. |
Evidence Notes.
8 Findings Published
Evidence
Primary referent: stop circle.
Evidence
Implied function: The icon must communicate Stop Circle in a digital interface..
Evidence
Metaphor type: functional.
Evidence
The icon clearly represents a stop circle with a square stop symbol inside an outlined circle, aligning well with its intended functional meaning as a stop control in digital interfaces.
Evidence
Visual metrics indicate strong perceptual clarity and robustness, with high scores in visual complexity, cohesion, and resilience to size and blur effects, supporting good recognizability across platforms.
Evidence
Semantic convergence is moderate (0.59), indicating the icon generally conveys the intended stop function but may require some learned convention.
Evidence
Functional convergence (0.6) supports that the icon maps reasonably well to the stop action, though some confusion with similar media control icons (pause, record, power) is possible, especially without contextual cues.
Evidence
Cultural convergence is the weakest axis (0.49), reflecting moderate cultural recognition and some semantic obsolescence, suggesting that the symbol's meaning may not be universally or consistently recognized across all user groups or cultures.
[ TRANSFER / METRIC CHART ]
Public evidence trend
The chart shows public evidence buckets by evidence year. Cohort breakpoints appear only when an aging referent is active.
Public evidence trend
Evidence year: 2026
Evaluation
Reference point.
X axis: Evidence year
| Evidence year | Semantic Transparency | Cultural Evidence |
|---|---|---|
| 1996 | 0.74 | 0.73 |
| 1997 | 0.74 | 0.73 |
| 1998 | 0.74 | 0.74 |
| 1999 | 0.74 | 0.73 |
| 2000 | 0.75 | 0.74 |
| 2001 | 0.75 | 0.73 |
| 2002 | 0.75 | 0.73 |
| 2003 | 0.75 | 0.76 |
| 2004 | 0.75 | 0.74 |
| 2005 | 0.75 | 0.74 |
| 2006 | 0.75 | 0.74 |
| 2007 | 0.76 | 0.73 |
| 2008 | 0.76 | 0.75 |
| 2009 | 0.76 | 0.74 |
| 2010 | 0.77 | 0.74 |
| 2011 | 0.77 | 0.73 |
| 2012 | 0.77 | 0.75 |
| 2013 | 0.77 | 0.75 |
| 2014 | 0.78 | 0.75 |
| 2015 | 0.78 | 0.75 |
| 2016 | 0.77 | 0.75 |
| 2017 | 0.77 | 0.75 |
| 2018 | 0.77 | 0.74 |
| 2019 | 0.78 | 0.75 |
| 2020 | 0.78 | 0.74 |
| 2021 | 0.77 | 0.74 |
| 2022 | 0.77 | 0.74 |
| 2023 | 0.59 | 0.64 |
| 2024 | 0.59 | 0.64 |
| 2025 | 0.58 | 0.63 |
| 2026 | 0.56 | 0.61 |
asset source
Material Symbols stop_circle SVG
Material Symbols by Google
Unofficial clarity analysis. PictoClarity is not affiliated with, endorsed by, or sponsored by Google. Material Symbols are provided by Google under their published license.
Open sourcepublic evidence
Iconicity as a General Property of Language: Evidence from Spoken and Signed Languages
OpenAlex / 2010-2010
Evidence query: stop icon comprehension.
Open sourcepublic evidence
The British Sign Language (BSL) norms for age of acquisition, familiarity, and iconicity
OpenAlex / 2008-2008
Evidence query: stop icon comprehension.
Open sourcepublic evidence
Iconicity in the lab: a review of behavioral, developmental, and neuroimaging research into sound-symbolism
OpenAlex / 2015-2015
Evidence query: stop icon comprehension.
Open sourcepublic evidence
The novel object recognition memory: neurobiology, test procedure, and its modifications
OpenAlex / 2011-2011
Evidence query: stop button recognition.
Open sourcepublic evidence
Impaired Recognition Memory in Rats after Damage to the Hippocampus
OpenAlex / 2000-2000
Evidence query: stop button recognition.
Open sourcepublic evidence
Movement-related potentials in the Go/NoGo task: The P3 reflects both cognitive and motor inhibition
OpenAlex / 2008-2008
Evidence query: stop button recognition.
Open sourcepublic evidence
The Future of the Internet--And How to Stop It
OpenAlex / 2008-2008
Evidence query: media control stop icon meaning.
Open sourcehistorical evidence
Google Books Ngram annual buckets: stop
Google Books Ngram / 1996-2026
Annual extraction returned 16859343 records across 27 active years.
Open sourcehistorical evidence
OpenAlex annual buckets: stop icon comprehension
OpenAlex / 1996-2026
Annual extraction returned 16025 records across 31 active years.
Open sourcehistorical evidence
Google Books Ngram annual buckets: stop circle
Google Books Ngram / 1996-2026
Annual extraction returned 7168175 records across 25 active years.
Open sourcehistorical evidence
OpenAlex annual buckets: stop button recognition
OpenAlex / 1996-2026
Annual extraction returned 46397 records across 31 active years.
Open sourcehistorical evidence
Google Books Ngram annual buckets: symbolic
Google Books Ngram / 1996-2026
Annual extraction returned 20696972 records across 27 active years.
Open sourcehistorical evidence
OpenAlex annual buckets: stop circle
OpenAlex / 1996-2026
Annual extraction returned 593196 records across 31 active years.
Open source[ TECHNICAL SCORECARD ]
The Metrics Behind The Case.
PCS
0.64
PictoClarity Score
STS
0.59
Semantic Transparency Score
CRI
0.56
Confusion Risk Index
VRS
0.72
Visual Readability Score
PCH
1.00
Perceptual Cohesion
RTS
0.75
Readability Test Score
SRS
0.70
Scale Robustness Score
BRS
0.84
Blur Robustness Score
TCS
0.78
Target Contrast Stability
SDS
0.74
Stroke Durability Score
SFS
0.66
Silhouette Fidelity Score
NDS
1.00
Negative Detail Score
BBS
0.02
Bounding Box Balance
CPS
1.00
Compression Preservation
PDS
1.00
Pixel Density Suitability
ORS
0.65
Orientation Robustness
CAS
0.60
Color Accessibility Score
RRS
0.54
Referent Recognition Score
FAS
0.66
Functional Association Score
SOS
0.35
Semantic Obsolescence Score
CSS
0.53
Cultural Saturation Score
ERS
0.42
Evidence Reliability Score
MTS
0.43
Metaphor Transfer Score
TDS
0.54
Temporal Decay Score
GDS
0.26
Generational Divide Score
CLL
0.42
Convention Learning Load
NTR
0.51
Neurocognitive Transfer Risk
SPS
0.45
Symbol Persistence Score
OBS
0.19
Obsolescence Signal
CTS
0.00
Cohort Transfer Slope
[ RECOMMENDED NEXT ACTIONS ]
What Improves This Pictogram.
Action
Conduct representative user testing across diverse user groups to validate semantic clarity and reduce confusion with neighboring interface actions.
Action
Maintain visible text labels or tooltips alongside the icon until semantic transparency and cultural recognition are conclusively demonstrated.
Action
Consider enhancing contextual cues such as placement and labeling to mitigate risks of misinterpretation, especially for users with varying platform conventions and accessibility needs.
Action
Monitor cultural and temporal trends to ensure the icon remains relevant and recognizable, updating design or usage guidelines as needed to address semantic obsolescence.
Action
Leverage the icon's strong perceptual robustness by ensuring it is displayed at or above the minimum recommended size (24x24) to preserve clarity across devices and resolutions.
[ Private testing / Admin invite ]
Request an invite for pictogram clarity screening.
Access stays invite-only during private testing.
Requests feed the admin invite queue.
Useful context helps select early pilots.