Parameterization in Load runner

                  Parameterization in Load runner

A method to replace a static value with other values picked external data source like excel or DB or notepad is known as Parameterization.

Usually, We use parameterization for those value which are user inputs or static value which can change basis of no of users

Load runner also has this option. Load runner provides various types of parameter types to use this feature.

There are various types of Parameters available in load runner:

1.                   File 

2.                  Table 

3.                   XML 

4.                   Random Number 

5.                   Iteration Number 

6.                   Unique Number 

7.                    Load generator Name 

8.                   Date/Time 

9.                  Vuser ID 

10.               User-Defined parameter.

1/2.      File and Table:

When a file type or table type parameter is used, a .dat file is created. By default all the data files are named as <Parameter Name>.dat and are stored in the script’s directory.

3.      XML type parameters:

XML Parameter Types are used for multiple valued data contained in an XML structure. It replaces a complex structure in which an array can be made a part of another array.

The complex structure as required in a web-service call can be replaced with a single XML parameter.

XML parameterization helps to have input of the data, and enables efficient parameterization of Vuser scripts.

XML parameters are widely used with Web Service scripts and with SOA services.

4.     Random Number:

Random Number replaces the parameter with a random number. While creating random type parameter, a minimum and maximum value of the range (the range, out of which the random number is planned to be selected) is required to be set.

5.     Iteration Number:

Iteration number parameter type replaces the parameter name with Vuser’s current iteration number.

6.     Unique Number:

Unique number parameter replaces the parameter with a unique value. This value is taken from the range set by entering the start value and the size of the range.

7.     LoadGenerator Name:

A LoadGenerator is the machine on which Vusers perform the steps as in the scripts. During test execution, Load Generator Name type parameter replaces the parameter

8.     Date/Time parameter type:

A Date/time parameter replaces the parameter with a date and/or time. One can specify one’s own format of date/time representation.

9.     Vuser Id parameter type:

  

A Vuser ID replaces the parameter with the ID number assigned to the Vuser by the Controller during a scenario run. When you run a script from VuGen, the Vuser ID is always 1.

10.   User defined parameter type:

A User defined parameter type is a user-defined function in which call to the function is made and the value returned by the function replaces the parameter name.

Happy Exploration!!!!