984
edits
Changes
Jump to navigation
Jump to search
Initial page
Some important things to know:
* Quality does not make sense for itself.
* Quality depends on usages.
* No database at all can pretend to zero-default.
* With more than 1 200 000 products, there are quality concerns: our goal is to lower the impacts of the issues.
== Data quality: how to help? ==
=== Nutri-Score quality ===
Some products now have Nutri-Score printed on the front of pack. Some differs from our Nutri-Score calculation. We should take care about that:
* [https://world.openfoodfacts.org/nutrition-grade/e/label/nutriscore-grade-a Nutri-Score printed A but calculated E]
* [https://world.openfoodfacts.org/nutrition-grade/d/label/nutriscore-grade-a Nutri-Score printed A but calculated D]
* [https://world.openfoodfacts.org/nutrition-grade/c/label/nutriscore-grade-a Nutri-Score printed A but calculated C]
* [https://world.openfoodfacts.org/nutrition-grade/a/label/nutriscore-grade-e Nutri-Score printed E but calculated A]
* [https://world.openfoodfacts.org/nutrition-grade/b/label/nutriscore-grade-e Nutri-Score printed E but calculated B]
* [https://world.openfoodfacts.org/nutrition-grade/c/label/nutriscore-grade-e Nutri-Score printed E but calculated C]
* [https://world.openfoodfacts.org/nutrition-grade/a/label/nutriscore-grade-d Nutri-Score printed D but calculated A]
* [https://world.openfoodfacts.org/nutrition-grade/b/label/nutriscore-grade-d Nutri-Score printed D but calculated B]
* [https://world.openfoodfacts.org/nutrition-grade/c/label/nutriscore-grade-d Nutri-Score printed D but calculated C]
* [https://world.openfoodfacts.org/nutrition-grade/e/label/nutriscore-grade-b Nutri-Score printed B but calculated E]
* [https://world.openfoodfacts.org/nutrition-grade/d/label/nutriscore-grade-b Nutri-Score printed B but calculated D]
* [https://world.openfoodfacts.org/nutrition-grade/c/label/nutriscore-grade-b Nutri-Score printed B but calculated C]
There are many reasons why it can differ:
* the label in Open Food Facts does not represent the label printed on the package (easy to solve)
* the label is correct but our calculation doesn't provide the same result:
** check the category,
** then check the nutrition facts: the issue is sometimes the lack of "fibers" information or the lack of "Fruits, vegetables, nuts and rapeseed, walnut and olive oils" percentage.
* it can be a software issue (quite rare but possible)
* Quality does not make sense for itself.
* Quality depends on usages.
* No database at all can pretend to zero-default.
* With more than 1 200 000 products, there are quality concerns: our goal is to lower the impacts of the issues.
== Data quality: how to help? ==
=== Nutri-Score quality ===
Some products now have Nutri-Score printed on the front of pack. Some differs from our Nutri-Score calculation. We should take care about that:
* [https://world.openfoodfacts.org/nutrition-grade/e/label/nutriscore-grade-a Nutri-Score printed A but calculated E]
* [https://world.openfoodfacts.org/nutrition-grade/d/label/nutriscore-grade-a Nutri-Score printed A but calculated D]
* [https://world.openfoodfacts.org/nutrition-grade/c/label/nutriscore-grade-a Nutri-Score printed A but calculated C]
* [https://world.openfoodfacts.org/nutrition-grade/a/label/nutriscore-grade-e Nutri-Score printed E but calculated A]
* [https://world.openfoodfacts.org/nutrition-grade/b/label/nutriscore-grade-e Nutri-Score printed E but calculated B]
* [https://world.openfoodfacts.org/nutrition-grade/c/label/nutriscore-grade-e Nutri-Score printed E but calculated C]
* [https://world.openfoodfacts.org/nutrition-grade/a/label/nutriscore-grade-d Nutri-Score printed D but calculated A]
* [https://world.openfoodfacts.org/nutrition-grade/b/label/nutriscore-grade-d Nutri-Score printed D but calculated B]
* [https://world.openfoodfacts.org/nutrition-grade/c/label/nutriscore-grade-d Nutri-Score printed D but calculated C]
* [https://world.openfoodfacts.org/nutrition-grade/e/label/nutriscore-grade-b Nutri-Score printed B but calculated E]
* [https://world.openfoodfacts.org/nutrition-grade/d/label/nutriscore-grade-b Nutri-Score printed B but calculated D]
* [https://world.openfoodfacts.org/nutrition-grade/c/label/nutriscore-grade-b Nutri-Score printed B but calculated C]
There are many reasons why it can differ:
* the label in Open Food Facts does not represent the label printed on the package (easy to solve)
* the label is correct but our calculation doesn't provide the same result:
** check the category,
** then check the nutrition facts: the issue is sometimes the lack of "fibers" information or the lack of "Fruits, vegetables, nuts and rapeseed, walnut and olive oils" percentage.
* it can be a software issue (quite rare but possible)