[ PICTOGRAM CASE HISTORY ]

Material Symbols Attach File Add Icon (Outlined). Usable with support.

Visible referent: attach file add. Intended message: The icon must communicate Attach File Add in a digital interface.. The report separates observed asset evidence, submitted context, and public evidence signals.

0.66

PCS

0.40

CLL

0.48

NTR

[ FEATURED PICTOGRAM ]

Pictogram contrast preview
Paper
Ink

pictoclarity / material-symbols-attach-file-add-outlined

Output - Material Symbols Attach File Add Icon (Outlined)

Assessing the communicative effectiveness of the Attach File Add icon

This reviewed catalog report estimates clarity for Attach File Add in default interface contexts. Scores are screening estimates and do not replace user testing.

Mobile appWeb appDesktop app

0.66

PCS

PictoClarity Score

0.40

CLL

Convention Learning Load

0.48

NTR

Neurocognitive Transfer Risk

Read Evidence

[ 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 Attach File Add icon in the outlined style.

02

Primary Finding

Primary referent: attach file add.

03

Metric Reading

Implied function: The icon must communicate Attach File Add in a digital interface..

04

Public Recommendation

Conduct representative user testing across diverse user groups to validate semantic transparency and reduce confusion risks.

[ EVIDENCE SCREENING ]

What The Estimate Surfaces.

Semantic Transparency Score

Input

Expected

Estimated

0.61

Confusion Risk Index

Input

Possible

Estimated

0.50

Readability Test Score

Input

Visual

Estimated

0.75

PictoClarity Score

Input

Estimated

Estimated

0.66

Usable with support 0.66

The pictogram works, but labels or testing remain important. 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

Current report

The pictogram works with labels or context.

Pair it with text and monitor interpretation.

0.50-0.64

Needs intervention

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

0.37

Balance

0.87

Perceptual

0.75

Semantic

0.61

Functional

0.62

Cultural

0.54

Temporal

0.54

Neurocognitive

0.59

Context Independence

0.64

Collective Resonance

0.55

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.

Convergent meaning profile
AxisScoreDescription
Perceptual Convergence0.75How strongly visual form survives size, blur, contrast, and detail loss.
Semantic Convergence0.61How strongly extracted meaning converges on one interpretation.
Functional Convergence0.62How strongly the symbol maps to the intended function.
Cultural Convergence0.54How strongly recognition holds across cultural evidence and assumptions.
Temporal Convergence0.54How strongly meaning persists over time without semantic decay.
Neurocognitive Convergence0.59How strongly the symbol follows AAC pictogram reading: transparent referent, concrete action, low convention load, and support.
Context Independence0.64How strongly meaning survives without external labels or placement cues.
Collective Resonance0.55How strongly public evidence supports shared recognition and persistence.

Evidence Notes.

8 Findings Published

Evidence

Primary referent: attach file add.

Evidence

Implied function: The icon must communicate Attach File Add in a digital interface..

Evidence

Metaphor type: functional.

Evidence

The icon effectively represents the concept 'Attach File Add' with a clear paperclip and plus sign metaphor, aligning with its intended functional meaning in digital interfaces.

Evidence

Visual metrics indicate strong perceptual clarity and robustness, with a perceptual convergence score of 0.75, showing good resilience to size, blur, and contrast variations.

Evidence

Semantic and functional convergence scores are moderate (0.61 and 0.62 respectively), suggesting the icon generally conveys its intended meaning but may require contextual support for full clarity.

Evidence

Cultural convergence is the weakest axis at 0.54, indicating limited universal recognition and some risk of confusion across different user groups and cultural contexts.

Evidence

Cultural metrics reveal moderate referent recognition (0.58) and functional association (0.67), but a notable semantic obsolescence score (0.33), implying some aspects of the symbol may be less familiar or relevant to newer users.

[ 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

Public evidence trend
Evidence yearSemantic TransparencyCultural Evidence
19960.770.74
19970.770.74
19980.770.74
19990.770.74
20000.770.74
20010.770.74
20020.770.75
20030.770.75
20040.770.75
20050.770.75
20060.780.75
20070.780.75
20080.780.75
20090.780.75
20100.780.75
20110.780.75
20120.780.75
20130.780.75
20140.780.75
20150.780.75
20160.780.76
20170.780.76
20180.780.76
20190.780.76
20200.770.75
20210.780.76
20220.780.75
20230.600.65
20240.600.64
20250.600.64
20260.570.62
Cohort transfer is inactive for this published report. The chart above uses evidence-year or metric data instead.

asset source

Material Symbols attach_file_add 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 source

public evidence

Toggles, Dollar Signs, and Triangles: How to (In)Effectively Convey Privacy Choices with Icons and Link Texts

OpenAlex / 2021-2021

Evidence query: attachment icon comprehension.

Open source

public evidence

The English Lexicon Project

OpenAlex / 2007-2007

Evidence query: attachment icon comprehension.

Open source

public evidence

Neural Correlates of the Appraisal of Attachment Scenes in Healthy Controls and Social Cognition—An fMRI Study

OpenAlex / 2016-2016

Evidence query: attachment icon comprehension.

Open source

public evidence

Signaling Recognition Events with Fluorescent Sensors and Switches

OpenAlex / 1997-1997

Evidence query: add icon recognition.

Open source

public evidence

Structure, Recognition, and Processing of Cisplatin−DNA Adducts

OpenAlex / 1999-1999

Evidence query: add icon recognition.

Open source

public evidence

Lectins:  Carbohydrate-Specific Proteins That Mediate Cellular Recognition

OpenAlex / 1998-1998

Evidence query: add icon recognition.

Open source

public evidence

Graphic and cultural aspects of pictograms: an information ergonomics viewpoint

OpenAlex / 2012-2012

Evidence query: attach file pictogram meaning.

Open source

historical evidence

Google Books Ngram annual buckets: attachment

Google Books Ngram / 1996-2026

Annual extraction returned 21871523 records across 27 active years.

Open source

historical evidence

OpenAlex annual buckets: attachment icon comprehension

OpenAlex / 1996-2026

Annual extraction returned 5211 records across 31 active years.

Open source

historical evidence

Google Books Ngram annual buckets: add

Google Books Ngram / 1996-2026

Annual extraction returned 21277851 records across 27 active years.

Open source

historical evidence

OpenAlex annual buckets: add icon recognition

OpenAlex / 1996-2026

Annual extraction returned 105606 records across 31 active years.

Open source

historical evidence

Google Books Ngram annual buckets: attach file add

Google Books Ngram / 1996-2026

Annual extraction returned 0 records across 0 active years.

Open source

historical evidence

OpenAlex annual buckets: attach file add

OpenAlex / 1996-2026

Annual extraction returned 466324 records across 31 active years.

Open source

[ TECHNICAL SCORECARD ]

The Metrics Behind The Case.

PCS

0.66

PictoClarity Score

STS

0.61

Semantic Transparency Score

CRI

0.50

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

0.65

Silhouette Fidelity Score

NDS

1.00

Negative Detail Score

BBS

0.00

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

0.58

Referent Recognition Score

FAS

0.67

Functional Association Score

SOS

0.33

Semantic Obsolescence Score

CSS

0.59

Cultural Saturation Score

ERS

0.53

Evidence Reliability Score

MTS

0.46

Metaphor Transfer Score

TDS

0.52

Temporal Decay Score

GDS

0.25

Generational Divide Score

CLL

0.40

Convention Learning Load

NTR

0.48

Neurocognitive Transfer Risk

SPS

0.49

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 transparency and reduce confusion risks.

Action

Maintain visible text labels or tooltips alongside the icon until user studies confirm reliable comprehension without them.

Action

Consider enhancing cultural recognition by adapting the icon or providing additional contextual cues in interfaces targeting less familiar audiences.

Action

Ensure consistent placement and supportive interface design to minimize misinterpretation with neighboring controls.

Action

Monitor evolving user familiarity and update iconography as needed to address semantic obsolescence and maintain clarity over time.

[ 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.