Guided Sampling for Improved Quality Testing

A method comprising:

• receiving, by a hardware processor communicatively coupled to a memory and from a user, a first plurality of variables and a first plurality of weights assigned to the plurality of variables;
• determining, by the hardware processor and from a log of historic errors, a second plurality of variables;
• determining, by the hardware processor and from a matrix corresponding to the second plurality of variables, a second plurality of weights for the second plurality of variables;
• implementing, by the hardware processor, changes to the first plurality of variables and the first plurality of weights such that the first plurality of variables matches the second plurality of variables and the first plurality of weights matches the second plurality of weights;
• retrieving, by the hardware processor, a plurality of historic transactions using a query that applies the second plurality of variables ordered according to the second plurality of weights;
• comparing, by the hardware processor, a first historic transaction of the plurality of historic transactions with a first baseline image to determine that the first historic transaction is consistent with the first baseline image;
• comparing, by the hardware processor, a second historic transaction of the plurality of historic transactions with a second baseline image to determine that the second historic transaction is inconsistent with the second baseline image;
• and
• in response to determining that the second historic transaction is inconsistent with the second baseline image, flagging, by the hardware processor, the second historic transaction as erroneous.

A system comprising:

• a database;
• and
• a guided sampling tool comprising a memory and a hardware processor communicatively coupled to the memory, the hardware processor configured to:
• receive, from a user, a first plurality of variables and a first plurality of weights assigned to the plurality of variables;
• determine, from a log of historic errors, a second plurality of variables;
• determine, from a matrix corresponding to the second plurality of variables, a second plurality of weights for the second plurality of variables;
• implement changes to the first plurality of variables and the first plurality of weights such that the first plurality of variables matches the second plurality of variables and the first plurality of weights matches the second plurality of weights;
• retrieve, from the database, a plurality of historic transactions using a query that applies the second plurality of variables ordered according to the second plurality of weights;
• compare a first historic transaction of the plurality of historic transactions with a first baseline image to determine that the first historic transaction is consistent with the first baseline image;
• compare a second historic transaction of the plurality of historic transactions with a second baseline image to determine that the second historic transaction is inconsistent with the second baseline image;
• and
• in response to determining that the second historic transaction is inconsistent with the second baseline image, flag the second historic transaction as erroneous.