7. A non-transitory computer readable medium having stored thereon instructions for determining a dynamic data item to be used in a replayable testing script for iterative use by an automated testing utility, which when executed by a processor cause the processor to perform the method of: recording a plurality of scripts, each script relating to a separate iteration of a transaction between a user and a tested application performed by an operator, each script comprising a request and a response; automatically comparing the recorded scripts to identify a location of a suspected correlation value by identifying a suspected correlation values in a request in a script that corresponds to the response in which that suspected correlation value was found; and determining whether the suspected correlation value is a correlation value to be replaced by a variable parameter, indicative of a dynamic data item.
7. A non-transitory computer readable medium having stored thereon instructions for determining a dynamic data item to be used in a replayable testing script for iterative use by an automated testing utility, which when executed by a processor cause the processor to perform the method of: recording a plurality of scripts, each script relating to a separate iteration of a transaction between a user and a tested application performed by an operator, each script comprising a request and a response; automatically comparing the recorded scripts to identify a location of a suspected correlation value by identifying a suspected correlation values in a request in a script that corresponds to the response in which that suspected correlation value was found; and determining whether the suspected correlation value is a correlation value to be replaced by a variable parameter, indicative of a dynamic data item. 11. The non-transitory computer readable medium of claim 7 , wherein the method further comprises prompting an operator to perform the separate iterations with the tested application.