• Verification is an objective, ISO Standards-based evaluation of a barcode’s print quality. It’s like penmanship or legibility. If you can’t read it, it doesn’t matter if it’s brilliant.
• Validation checks the data content for correct prefixing and data-type. Some data fields have a fixed length, some allow encoding alphanumeric characters, and of course, the data must be correct. If it doesn’t make sense, being able to read it doesn’t matter.
  

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To properly evaluate a barcode, both of these factors must be tested. A poorly printed barcode with perfect data fails; a well printed barcode with incorrectly parsed data fails. Compliance requires both to pass.

This is particularly important in highly regulated industries such as healthcare. But it is also important in less critical applications, like consumer goods. Even a lowly UPC has validation requirements for the encoded data. For example, if the barcode for vanilla-flavored yogurt is printed on a container of unflavored yogurt, the item sold and the re-inventory order are inaccurate.  Disrupting but not life-threatening.

Validation errors in healthcare and pharma are much more serious.

Proper barcode testing must include verification and validation.

Most (but not all) barcode verifiers also validate the data structure of a barcode.  Knowing the difference is the first and most important step in getting and staying compliant on your primary and secondary packaging.

Contact us here.

The post Verification vs. Validation: What’s the Difference and Why It Matters first appeared on Barcode Test LLC.

The post Verification vs. Validation: What’s the Difference and Why It Matters appeared first on Barcode Test LLC.

A plain-language guide to the grading system behind 2D barcode quality

Most people who deal with barcodes professionally have heard the term “ISO grade” — a letter or number that tells you whether a symbol passed or failed a quality test. What almost nobody outside the verification industry can explain is what that grade is actually built from, or what physical printing problem each component is designed to detect.

That matters now more than ever. As companies transition to 2D symbols — Data Matrix codes for medical devices and pharmaceuticals, QR codes for retail and GS1 Digital Link compliance — they are running into quality failures they didn’t anticipate. The symbols look fine. They scan on the test scanner at the print station. And then they fail at the point of care, at the automated warehouse conveyor, or at the retail point of sale. The grade would have told them why. But only if they understood what the grade was measuring.

ISO/IEC 15415 is the international standard that defines how 2D barcode symbols — primarily Data Matrix and QR Code — are graded. It specifies seven parameters, each of which isolates a different dimension of print quality. The overall grade is the lowest grade among all seven. Think of it as the weakest link: a symbol that scores A on six parameters but D on one still receives a D.

Here is what each parameter measures, why it exists, and what print defect it is designed to catch.

Parameter 1: Decode

What it measures: Can the symbol be decoded at all?

This is the most fundamental test, and the only one that is strictly pass/fail. The verifier attempts to decode the symbol using a reference decode algorithm — a standardized software decoder designed to be consistent across measurements, not optimized for real-world tolerance. If the symbol decodes, this parameter passes with a grade of 4 (equivalent to A). If it does not decode, the entire symbol receives a failing grade regardless of how well it scores on every other parameter.

Why it exists: A symbol that cannot be decoded by the reference algorithm has failed at the most basic level. No amount of good contrast or clean geometry can compensate for a symbol that simply cannot be read. Decode failure typically indicates severe module damage, catastrophic ink spread, or fundamental printing errors such as a skipped print head element that leaves an entire column of modules missing.

The practical catch: Decode failure is usually obvious. The more insidious quality problems are the ones that pass decode but degrade the other six parameters — producing a symbol that can be read under ideal conditions but fails under the real-world scanning environments your supply chain actually contains.

Parameter 2: Symbol Contrast

What it measures: The difference between the lightest and darkest areas in the symbol, expressed as a percentage of the total reflectance range the verifier can measure.

Symbol Contrast is calculated as R-max minus R-min — the reflectance of the lightest element minus the reflectance of the darkest element. A symbol printed in dense black ink on bright white label stock will show a large contrast value. A symbol printed on a colored substrate, a glossy surface, or with faded ink will show a much smaller one.

Why it exists: Scanners decode barcodes by detecting the transition between light and dark. The larger the contrast difference, the more reliably a scanner can distinguish a dark module from a light one. When contrast is low, the signal the scanner receives is ambiguous — marginal illumination angles, slight surface variations, or minor label damage can push a module’s reflectance to the wrong side of the threshold, causing a misread.

The practical catch: Symbol Contrast catches problems that are invisible at normal inspection distances. A label that looks perfectly printed under the fluorescent light at your receiving dock may have dangerously low contrast under the near-infrared illumination many industrial scanners use. A verifier measures contrast under calibrated, standardized conditions — the human eye cannot replicate this reliably.

Parameter 3: Modulation

What it measures: How consistently each individual module achieves its intended reflectance value, relative to the overall contrast range of the symbol.

Where Symbol Contrast measures the distance between the lightest and darkest elements overall, Modulation looks at whether the individual dark modules are consistently dark and the individual light modules are consistently light. A symbol can have acceptable overall contrast but poor Modulation if some dark modules are printing lighter than others — perhaps because of ink starvation in one region of the label, thermal print head wear, or substrate texture variation.

Why it exists: A decoder determines whether a given module is dark or light by comparing its reflectance to a threshold — typically the midpoint between R-max and R-min. If a dark module’s reflectance is closer to the midpoint than it should be, there is less margin for error. Any real-world degradation — a scratch, a smudge, variable lighting — can push that module past the threshold and cause a misread.

The practical catch: Low Modulation is a leading indicator of print process instability. It often reveals ribbon age, substrate inconsistency, or print head condition problems before they become visible as defects or cause scan failures. Catching low Modulation early is considerably cheaper than a product recall or a compliance rejection.

Parameter 4: Fixed Pattern Damage

What it measures: The integrity of the structural elements the decoder uses to locate, orient, and interpret the symbol — the finder pattern, quiet zone, timing patterns, and alignment patterns.

Every 2D symbology has regions that serve not as data storage but as navigation aids for the decoder. In a Data Matrix symbol, these are the solid “L” shaped border (the finder pattern) and the alternating light-dark border opposite it (the timing pattern). In a QR Code, they are the three large square patterns in three corners, plus the alignment patterns distributed throughout larger symbols. Fixed Pattern Damage measures how intact these structural elements are.

Why it exists: A decoder that cannot locate or orient the symbol cannot read it, regardless of how well the data modules are printed. Fixed Pattern Damage is graded more harshly than damage to data modules because of this asymmetry: the error correction built into 2D symbols can reconstruct damaged data modules, but it cannot compensate for a corrupted finder pattern.

The practical catch: Fixed Pattern Damage is often caused by die-cutting, perforation, or folding lines that happen to intersect the finder pattern. It can also result from label applicators that smear ink across the leading edge of the symbol during application. Because the finder pattern is located at the symbol’s border, it is disproportionately exposed to physical handling damage — exactly the kind that accumulates between print and final scan.

Parameter 5: Axial Non-Uniformity

What it measures: Whether the symbol’s modules are consistently sized and spaced along both the horizontal and vertical axes, or whether the symbol is stretched or compressed in one direction relative to the other.

Axial Non-Uniformity compares the module pitch — the distance from the center of one module to the center of the next — along the X axis versus the Y axis. A well-calibrated printer produces modules that are square and evenly spaced in both directions. A printer with a high speed setting, a worn platen roller, or a label web that stretches during printing will produce modules that are elongated in one direction. The symbol looks like a rectangle when it should look like a square grid.

Why it exists: Decoders are designed to handle some degree of symbol distortion, but Axial Non-Uniformity beyond tolerance forces the decoder to make assumptions about module placement that increase the likelihood of misread. The effect is most damaging in larger symbols with more modules, where the accumulated positional error across the symbol becomes significant.

The practical catch: Axial Non-Uniformity is almost never visible to the naked eye at the distances typical of label inspection. It requires measurement. It is a common failure mode for thermal transfer printers that have not been calibrated recently, and for continuous-feed printing operations where web tension varies across a print run.

Parameter 6: Grid Non-Uniformity

What it measures: How accurately the center of each individual module falls on the ideal reference grid that the decoder expects.

Where Axial Non-Uniformity measures systematic distortion across the whole symbol, Grid Non-Uniformity measures local, random variation in module placement. Even if the overall symbol dimensions are correct, individual modules can be shifted from their ideal positions by substrate texture, print head element variation, vibration in the print mechanism, or thermal expansion during printing. Grid Non-Uniformity captures this noise.

Why it exists: A decoder reconstructs the symbol by projecting a reference grid onto the image and sampling the reflectance at each expected module location. If a module’s center has shifted, the sampling point falls on the wrong location — possibly on the border between a dark and a light module — and the decoder misclassifies it. High Grid Non-Uniformity means the decoder is operating with less geometric certainty at every module in the symbol.

The practical catch: Grid Non-Uniformity failures often indicate substrate problems: embossed or textured label materials that physically deflect the print head during printing, or substrates with inconsistent surface absorption that cause ink to spread unevenly. It is also a common symptom of printing on curved or irregular surfaces — which is precisely where direct part marking (DPM) on medical devices or industrial components tends to occur.

Parameter 7: Unused Error Correction

What it measures: How much of the symbol’s built-in error correction capacity remains available after accounting for any damage or degradation the symbol has already sustained.

2D matrix symbologies encode data redundantly. A Data Matrix or QR Code can still be decoded even if a portion of its modules are unreadable, because the error correction algorithm can reconstruct the missing data from the surviving modules. Unused Error Correction measures what percentage of that correction capacity is still intact. A symbol with no damage has 100% of its error correction available. A symbol with some print defects has consumed some of that capacity to compensate for those defects — leaving less margin to absorb future damage during handling and distribution.

Why it exists: A symbol that arrives at its destination with 100% of its error correction intact is not the same as a symbol that barely survived the trip. Both may scan successfully today, but the latter has no remaining tolerance for a scratch, a moisture mark, or a partial obstruction. Unused Error Correction answers the question: how much more damage can this symbol absorb and still be readable?

The practical catch: This parameter directly translates to supply chain resilience. A pharmaceutical label that leaves the printer with a C-grade Unused Error Correction score may scan at the dispensing cabinet — until a drop of water, a handling smear, or a storage crease consumes the remaining capacity. The consequence in a clinical setting is not a failed checkout transaction. It is a scanning failure at the point of medication administration.

How the Parameters Combine Into a Grade

Each parameter is scored on a scale of 0 to 4, where 4 corresponds to a letter grade of A and 0 corresponds to F. The overall symbol grade is the lowest score among all seven parameters — not an average.

This is intentional and significant. A symbol cannot compensate for a critical weakness in one dimension by excelling in others. A symbol with perfect contrast, geometry, and error correction capacity but a damaged finder pattern still fails. This mirrors the real world: a scanner attempting to read that symbol will be stopped by the one thing it cannot work around, regardless of everything else the symbol has going for it.

The grade thresholds are:

Many retailers, healthcare, and pharmaceutical compliance programs specify a minimum grade of 1.5 (between C and D) or higher. GS1 recommends a minimum grade of 1.5 for retail applications; healthcare applications under FDA UDI requirements and pharmaceutical serialization under DSCSA typically require higher minimums and may be specified by the trading partner or regulatory body.

What This Means in Practice

The value of understanding these seven parameters is not academic. Each one points to a specific, addressable root cause in the print process. A Symbol Contrast failure points to ink density or substrate selection. An Axial Non-Uniformity failure points to printer calibration. A Fixed Pattern Damage failure points to die-cutting registration or applicator alignment. Grid Non-Uniformity failures point to substrate or print head condition. Unused Error Correction failures tell you that the symbol is absorbing damage somewhere in the process between print and scan.

A scan test tells you only whether a particular scanner, under particular conditions, could decode the symbol at the moment you tested it. An ISO grade tells you why the symbol performs the way it does, and what margin remains between current performance and failure.

As 2D barcodes become mandatory across retail, healthcare, pharmaceutical, and food supply chains, the difference between those two kinds of information is the difference between reactive troubleshooting and systematic quality control.

Contact us here for information about ISO-compliant barcode testing and verification equipment.

The post What ISO 15415 Actually Measures — And Why Each Parameter Exists first appeared on Barcode Test LLC.

The post What ISO 15415 Actually Measures — And Why Each Parameter Exists appeared first on Barcode Test LLC.

Most people assume that a barcode that scans at the dock is a barcode that passes compliance. This is a wrong and potentially very costly assumption. From a quality and compliance standpoint, a scanner that decodes a barcode only tells you that the barcode could decode by that scanner under those conditions. On the other hand, an ISO compliant barcode verifier measures the barcode the way that a worse-case scanner in the supply chain would.

Here is another way of expressing this, and we’ll use a linear barcode as an example–let’s say a big GTIN14 on a corrugated carton. And that barcode is so badly printed, there is only one small sweep through the barcode where it will decode. Every scan above and below that thin line will fail.

Although it might take several tries, a scanner will find that one place where it can decode the barcode. That’s what a scanner does. Conversely, a verifier will take the ISO-required ten scans across the barcode, and 9 of them will fail. It will probably find the one area where the barcode passes well enough to decode, but the symbol will get a failing final grade.

This is the difference between decode-only evaluation and graded ISO standards-based verification. A scanner is only looking for a decode. A verifier is looking for problems. This is not pessimism—it’s reality. Other scanners will not perform like yours, and their scanning environment may differ from yours.

Remember the disastrous bridge collapse in Minnesota? That’s another analogy. Visual inspections of that bridge failed to detect a problem. A structural engineering load analysis would have found a problem and prevented the disaster. Inconvenient? Yes. A good idea? Absolutely.

Although it isn’t an exaggeration to say that a bad barcode can cause death, like a bridge collapse, it has happened. More frequently, bad barcodes cause expensive but non-fatal damage to supply chain operations, leading to delays, anxiety, sleepless nights, disappointment, and mistrust between trading partners. The damage is usually, but not always, recoverable.

Although every company with potential barcode risk should buy a verifier, a viable and less expensive alternative is to use a barcode testing service. You get substantial barcode expertise and a verification report for a fraction of the cost of a verifier. And we know of one that responds very quickly.

Contact us here.

The post Your Barcode Looks Good but Fails first appeared on Barcode Test LLC.

The post Your Barcode Looks Good but Fails appeared first on Barcode Test LLC.

This sets the stage for near-term developments for virtually everything marked with the GS1 Digital Link barcode. Food items will now have nutritional, expiration, recipe and allergy information all readily available to the consumer. But the implications go much farther.

Data-limited UPC’s forced retailers to assign conservative use-by dates to time-sensitive products such as meat and cheese. Item-level inventory management was virtually impossible, resulting in unnecessary food waste and lost revenues for the retailer. GS1 Digital Link supports automated markdown pricing for products with near-term expiration. It can also alert store personnel to rotate discounted inventory.

This also helps upstream distribution, which has traditionally operated on First In, First Out logistics. Variable expiration dates within the lot or batch were invisible until GS1 Digital Link. Now, warehouses will be able to operate on First Expired First Out. Less spoilage, less waste, less lost revenue. This will be especially effective with produce and perishables. Major grocery chains are already piloting dynamic markdown systems based on GS1 Digital Link. Everybody benefits.

Preventing food waste at the retail consumer level is just one important development. Currently, agriculture accounts for about 20% of global greenhouse gas emissions. Transportation adds another 16%; manufacturing ~21%. GS1 Digital Link will make more agile planning and production possible.

Overstated waste is often pointed at the fashion industry, which contributes only about 4% to global greenhouse gas emissions, but the real impact is in microplastic pollution, water contamination and dye pollution.  Fashion is a significant, under-regulated polluter. GS1 Digital Link’s item-level identification can determine what an article is made of and improve recycling accuracy while simultaneously tracking demand and supply, potentially reducing wasteful overproduction.

Real results will begin to emerge at the 2027 adoption date, but the promises and possibilities are real and exciting. This development was unimaginable when the first UPC was scanned in 1974.

It is hard to imagine what could come next once GS1 Digital Link becomes the new normal. Already there are some wild possibilities…

Questions about barcode quality and compliance? Contact us here.

The post GS1 Digital Link: the Next Step first appeared on Barcode Test LLC.

The post GS1 Digital Link: the Next Step appeared first on Barcode Test LLC.

The First Barcode

More commonly, certain barcode types will be replaced by a more effective type of barcode. This happened at the dawn of barcoding technology. The original barcode, patented in 1947, was a bullet-shaped pattern of concentric rings. It was a great idea: it eliminated the need to radially align the scanner, but it was practically impossible to print accurately. The parallel lines configuration of the  UPC replaced it. Now the UPC is the end of its useful life, and GS1 Digital Link QR Code is taking over. The change is driven by the need for greater data capacity.

The same problem was solved years ago in the periodicals and book trade. There was a need to encode not only the ISSN or ISBN numbers, but also the price. The solution was the addendum code, added to the trailing section of a UPC or EAN linear barcode. It has worked successfully for decades, but a symbology with even greater capacity would be a boon.

Adding Linear Capacity

Addendum coding was also deployed in couponing. Buy an item and get money off, money back or a variety of other offers with a specially barcoded coupon. Complicated offers quickly challenged the data capacity of coupon codes, so multi-row linear barcodes evolved.

Soon the barcodes themselves were as complicated as the functions they performed. So far, I have not heard predictions of the Databar’s demise, but it would not be unexpected.

The same can be said for PDF417, a row-upon-row stack of deeply truncated linear barcodes. Many of us have one on the back of our driver’s license.

These solutions evolved because they solved problems: high data capacity and decodable with cheap laser scanners.

The Next Generation

As yet, it is and the unknown whether GS1 Digital Link will take over all of these tasks, but the coding technology is here and the required digital scanners are being installed. The 2D barcodes have much higher data capacity, can encode URLs with literally volumes of data, and are smaller and easier to print. Everybody wins. How often does that happen?

Contact us here, or sign up for a free 15-minute consultation.

The post Barcode Evolution first appeared on Barcode Test LLC.

The post Barcode Evolution appeared first on Barcode Test LLC.

In the first instance, we tested a batch of sheets of 100 barcoded labels for a pharmaceutical customer. They all passed, and we shipped them back. A few weeks later, the customer called to report they were failing. At the on-site meeting after a sleepless night, we discovered that the customer had affixed the labels to a reagent cartridge for their automated lab analyzer, where the barcodes were failing. The customer had forgotten that the label alignment on the cartridge changed when they replaced the analyzer. The barcodes were, in fact, fine. Whew.

Diagnostics, Point-of-Care and Blood

It was an important insight into the important role those barcodes play in diagnostics, identifying not just the patient, but also the reagent type, lot number, expiration date, and other critical data. If the barcode doesn’t scan, the diagnostics fail, and the time-sensitive treatment sequence is halted. Serious stuff.

Recognizing this, the FDA UDI rule requires that diagnostic devices must also carry compliant barcodes—not just the consumables.

Barcodes are everywhere at the point of care:

• Glucose meters
• Rapid strep and COVID tests
• Blood sample tubes
• Urine and other samples

Barcodes are also used on blood bags—these are among the most carefully controlled in healthcare. Blood bag barcodes identify the blood type. A mismatch with the patient can cause death, so the barcode on the patient’s wristband is also extremely important.

The second instance…

Ten years ago, I had a personal encounter with barcodes in medical diagnostics. It’s fair to say the barcode saved my life. I was experiencing some mysterious weight loss and difficulty eating. A visit to the ER and an emergency endoscopy found Stage 4 esophageal cancer. Radiation dispatched the tumor that was restricting my stomach, but the cancer had metastasized all over my body and into my brain, and I couldn’t tolerate the chemo. I had six months to live.

I stumbled upon a clinical trial for Pembrolizumab—that’s another story in itself. If I had a large enough tissue sample and if we could get it to Scotland in 24 hours, I might get into the last remaining spot in the cohort. The barcode on the tissue sample identified me and diagnostic data about the sample. No doubt there were barcodes on the package in the jet to Glasgow, where I was approved for the clinical trial of what became Keytruda. I went from terminal in six months to cancer-free in six months.

The personal drama aside, laboratory specimen identification is probably the most critical application of barcodes, and perfectly suited to their strengths as a data-rich, non-volatile information carrier.

But the barcode must work right.

Contact us or schedule a fee 15-minute barcode quality consultation here.

The post Barcodes in Medical Diagnostics first appeared on Barcode Test LLC.

The post Barcodes in Medical Diagnostics appeared first on Barcode Test LLC.

Digital Link is no different.  It does more and does it better: more precise product recalls and real-time expiration dates; recipes, nutritional and allergy information on groceries; contraindications, side-effects and dosing information on drugs, user guides and assembly instructions for anything requiring assembly and devices, re-use, recycle, and sustainability data…the list continues to grow as new applications are discovered. And of course, the pain: retailers must upgrade to more expensive 2D scanners.

What’s the Same

Once again, the playing field is almost level. There is excitement about substantial benefits to both sides of the equation—retailers and consumers—but mostly history repeating itself. In 1974, retailers had to install scanners, and all consumer items required UPC symbols.  2027 will be similar. A rising tide lifts all boats. It will touch almost everyone.  In a few years, it will be the new normal. This is not banality, it’s good. Very good. Fifty-two years ago, the adoption of barcoding improved critical processes across manufacturing, distribution, retail sales, and inventory management. Digital Link does more and does it better. And that’s not different! That’s barcodes doing what they have done for over five decades. They evolve. They find new ways to serve. They remain relevant.

What’s Different

What’s different is how the idea of Digital Link came about. The inspiration for the barcode originated in the United States in 1949, the brainchild of Norman Woodland and his colleague, Bernard Silver, who patented the concept in 1952. It was a solution without a way to make it work. The missing piece was the scanner, which took another two decades to develop.

The development of Digital Link was entirely different. The development of the World Wide Web, first proposed at CERN in Switzerland in 1989, provided the essential foundation. Without that, Digital Link would be just an impossible idea. Soon thereafter, a group at the Rutherford Application Lab in the UK proposed the idea of searchable data in web content. Link types were being explored in the development of HTML 3.0 in 1995. Digital Link has global parentage, including the development of an international standard ratified in August 2018 by GS1 Global in Brussels.

The UPC was entirely an American idea, but Digital Link was an international collaboration.

Same Difference

When Global Link is launched in 2027, the difference will be its sameness to legacy barcodes: it absolutely must work right. And that comes down to the same two principles:

• Print quality
• Data structure

Contact us, or schedule a free 15-minute consultation here.

The post Who Wins with Digital Link? first appeared on Barcode Test LLC.

The post Who Wins with Digital Link? appeared first on Barcode Test LLC.

In a modern warehouse, barcodes are nothing less than the lifeblood. Without a barcode marking each item, you don’t know what it is, where it is, or what to do with it next. Nothing moves without scanning a barcode.

The barcode is the eyes

Barcodes mark everything coming into the warehouse—what it is, how many of them arrived, and from whom. That’s just the beginning. Things don’t just get stored in

a warehouse. They move around. A lot. Often, there is a storage location, but that’s a temporary holding place. Variable items on the pallet may go to separate locations. Eventually, items go to a pick station, then on a conveyor to packaging. Every movement is scanned. Real-time scanning at every step is mission-critical. Without that, the warehouse is blind. Barcodes make it possible to track every movement in the warehouse. The barcode is the eyes of the warehouse. If the barcode doesn’t work, the item is invisible. It doesn’t exist.

Barcodes do more than just locate an item or track its movement. Barcodes can also direct automated equipment. Think of a cross-dock operation with incoming items on a central conveyor. Barcode scanners trigger diverters, shunting certain items onto branching conveyors to different locations: maybe a storage area, maybe a packing station, maybe a truck dock dedicated to a specific route. A barcode misread is worse than a data error—it’s a misroute.

Optimizing Throughput

Warehouse orchestration elevates warehouse automation to the next level. Orchestration is just what it sounds like—intelligent on-the-fly choreography of robots, conveyors, inventory and people.  Orchestration means continuous, second-by-second decision-making: which robot picks what item and sent to what destination. Sending a human all over a million-plus square foot warehouse to fulfill one order is incredibly inefficient, not to mention exhausting. Orchestration makes intelligent, respectful integration of human labor possible. Orchestration decisions are a micro supply chain. But only if the barcodes work right. A bad scan triggers a downstream catastrophe of misroutes, shipment errors and inventory discrepancies that robots and scanners cannot reconcile.

Barcodes are the lifeblood of warehouse automation and orchestration. Just like blood, barcodes travel through the system, informing it, responding to it and keeping it alive.

Contact us here.

The post Barcodes in Warehouse Automation and Orchestration first appeared on Barcode Test LLC.

The post Barcodes in Warehouse Automation and Orchestration appeared first on Barcode Test LLC.

By comparison, the changes that Digital Link will bring will be barely noticeable to the shopper. But they will be vastly more significant. The Digital Link barcode will do far more than the lowly UPC has ever dreamed of, and that will make quality and compliance more important than ever.

Just a QR Code

A common and dangerous mistake that is already showing up in the test labs is the idea that it’s just a QR Code. Sending the user to a website is nothing new. Digital Link looks like the QR codes we’ve seen for years, but it’s really a very different barcode.

Unlike legacy QR Codes, Digital Link is not a self-contained data carrier like the UPC, which only performs product lookup for pricing and inventory. The difference runs deeper than just data capacity. Much deeper. Digital link is a UPC plus a backend web service called a resolver.

Traffic Control

The resolver is like a traffic controller for the infrastructure contained in the QR Code. For a grocery item, that infrastructure could include:

• Product information for the food and beverage consumer, recipe ideas, storage recommendations, allergen warnings, and recommended use-by date
• Frontline checker notification of expired sell-by date
• Supply chain information for the retail outlet: debiting the inventory, building a replenishment order, and initiating supply chain activity

These are just a few examples of how Digital Link will impact retail and consumer goods transactions. A completely different set of functions will be handled by a Digital Link resolver in healthcare and pharmaceuticals, apparel and footwear, variable weight fresh foods, logistics, and supply chain information for proper handling and storage, dynamic routing, and cloud-based warehouse management.

The resolver parses the relevant information and delivers it where needed—it is not a “data dump” for everyone. Digital Link makes the barcode into a live connection point, not a static identifier. The same barcode can serve a wide variety of purposes and users. Its versatility makes it relevant across a wide range of industries and functionalities simultaneously.

Don’t Trust Your Smartphone

The net effect of all this integration of data into a single, powerful symbology is that quality and compliance are more important than ever. Print quality is of course important, but system-level considerations such as data accuracy, syntax validation, resolver compliance are equally important. Just because your smartphone successfully reads the QR Code means very little.

Need proof? Scan this Digital Link symbol with your smartphone. Scans fine, right? It contains a fatal error your smartphone misses.

Questions? Contact us here.

The post Digital Link: Not your Grandfather’s QR Code first appeared on Barcode Test LLC.

The post Digital Link: Not your Grandfather’s QR Code appeared first on Barcode Test LLC.