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This section describes the basic building blocks that are used in a project.

The terminology used will also be described.  See also the Reference manual section windows terminology.

Each project should be stored in its own folder.  This folder will contain the master files that contain the project information and any output files that are produced.

Master files for projects:

•Project File (qdf)

•Data file (usually CSV or ASC)

•Input file (qpsmrinp)

•Reflect file (qrfx or qrf)

Entry types in a project:

•Questions

•Filters

•Variables

•Program entries

Question types:

•Single-coded

•Multi-coded

•Integer

•Float

•Character

•Verbatim

•Date

•Time

•None

See also ZZZ question types.

Variable types:

•Single-coded

•Multi-coded

•Integer

•Float

Logic definitions are used in:

•Filters

•Single-coded and multi-coded variable responses

Arithmetic definitions are used in:

•Integer and float variables

Serial numbers are used in every project to identify individual respondents or questionnaires.