Main Validation Scores¶
Document Main Score¶
The following scores are generated and provided by Veridas' Digital Onboarding service after the document analyses have been successfully performed.
Score-DocumentGlobal: This is the main score for the ID document verification process. It checks the authenticity and validity of the ID document. The value is given in a float number format that has a value from 0 to 1, being 1 the max value of authenticity and validity of the ID document.
Biometric Main Scores¶
The following scores are generated and provided by Veridas' Digital Onboarding service after the selfie photo and video analyses have been successfully performed.
ValidasScoreSelfie: This is the main score for selfie photo vs ID document face image similarity analysis which compares them and offers a score that indicates the probability for both faces of belonging to the same person. The similarity is given in a float number format that has a value from 0 to 1, being 0 the lowest similarity probability and 1 the highest. If the NFC face photo has been uploaded to the backend, the value of ValidasScoreSelfie is equal to the value of ValidasScoreNfcSelfie, if not, it will be the same as ValidasScorePhotoId.
Info
If a face is not present in the ID document image, the selfie comparison will not be possible and the value of the ValidasScoreSelfie will be 0.
ValidasScoreVideo: Indicates the probability for the selfie photo and the face that appears on the selfie video of belonging to the same person.
ValidasScoreLifeProof: Indicates the probability for the person be alive.
ValidasScorePhotoId: Indicates the probability for the selfie photo and the ID document face image of belonging to the same person.
ValidasScoreSelfieAuthenticity: Indicates the probability for the selfie photo image to be authentic and not a spoofed one.
ValidasScoreNfcSelfie: Indicates the probability for the selfie image and the NFC chip face image belonging to the same person.
Integrity scores¶
The following scores are generated and provided by Veridas' Digital Onboarding backend service for each one of the uploaded images once their integrity check has been performed. These scores provide a guarantee that the images captured by the client SDK have been received by the backend application without suffering any modifications along the way. This integrity check feature requires using SDKs release 2020Q4 or newer, otherwise, the integrity scores will not be available.
Please check the SDK documentation for the compatibility for the validation process integrity verification feature
ValidasScoreIntegrity: Indicates if the integrity of the entire validation process has been satisfied or not. Its value depends on the following factors:
- This validation integrity score will be available ONLY if at least one of the images was captured using the SDK supporting this integrity feature.
- This validation integrity score will be 1 if ALL the uploaded images have their integrity score with value.
- This validation integrity score will be 0 if any of the images have an integrity score of 0 or missing (ie: was not captured using the SDK supporting the feature).
Other Integrity Scores¶
ValidasScoreDocObverseIntegrity: Indicates whether the obverse image has not been modified or altered since it was captured by the Veridas SDK. If there is a fulfilment, value "1" is provided, otherwise, value "0" is provided.
ValidasScoreDocReverseIntegrity: Indicates whether the reverse image has not been modified or altered since it was captured by the Veridas SDK. If there is a fulfilment, value "1" is provided, otherwise, value "0" is provided.
ValidasScoreDocSelfieIntegrity: Indicates whether the selfie image has not been modified or altered since it was captured by the Veridas SDK. If there is a fulfilment, value "1" is provided, otherwise, value "0" is provided.
ValidasScoreDocSelfieAliveIntegrity: Indicates whether the selfie alive image has not been modified or altered since it was captured by the Veridas SDK. If there is a fulfilment, value "1" is provided, otherwise, value "0" is provided.
Validation Global Scores¶
Veridas' Digital Onboarding service currently returns a number of global or main scores which summarize the results of each one of the main analyse processes like the document and the proof of life, among others. Based on these main scores, the bakend generates a new score named ValidationGlobalScore to represent the result of the entire validation process.
These main scores have a floating point value between 0 and 1, and roughly, they tell whether a whole process was successful or not. These scores are useful because, if they didn't exist, a client would have to walk over a growing number of scores to tell if the process went well.
These global or main scores are the following.
- Score-DocumentGlobal
- ValidasScoreSelfie
- ValidasScoreVideo
- ValidasScoreLifeProof
- ValidasScoreIntegrity
These score values can be considered as:
- Valid: It means that the value is high enough to take it as good
- Inconclusive: It means that the evidences should be reviewed by a human in order to determine if they are good or not.
- Rejected: It means that the value is low enough to be considered as incorrect, fraud or not good.
The following table shows the ranges a score's value needs to be in for it to be considered valid, inconclusive or rejected.
| Main scores | Valid | Inconclusive | Rejected |
|---|---|---|---|
| Score-DocumentGlobal | > 0.70 | 0.50 <= score <= 0.70 | < 0.50 |
| ValidasScoreSelfie | > 0.70 | 0.50 <= score <= 0.70 | < 0.50 |
| ValidasScoreVideo | > 0.70 | 0.50 <= score <= 0.70 | < 0.50 |
| ValidasScoreLifeProof | > 0.70 | 0.50 <= score <= 0.70 | < 0.50 |
| ValidasScoreIntegrity | 1 | n/a (doesn't appear) | 0 |
The score ValidationGlobalScore will have one of the following three values, depending on which of the following conditions:
| Condition | Value of ValidationGlobalScore |
|---|---|
| The scores ValidasScoreSelfie, ValidasScoreLifeProof, ValidasScoreVideo, ValidasScoreIntegrity and Score-DocumentGlobal are all valid. | 1.0 |
| From the above scores, one and only one is in an inconclusive state. | 0.5 |
Either: - At least one of the above scores is in rejected state, or - More than one of the above scores is in inconclusive state. |
0.0 |