# Software/Tools/Files
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In this section, designers can include any software used as part of the method. This can include presentation tools, sampling, coding, and other analytic tools.
#### **Structure Files**
We suggest two types of files that can be used for most survey instruments:
* Scale (Subscale) Definition Matrix - defines any scales and subscales in the survey
* Item-Scale (Subscale) Matrix - designed to support any analytic steps by mapping survey items to particular scales and subscales
#### **Software**
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