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The “external survey start” of EFS allows to send survey participants from one project to a second project and to redirect them upon completion. This can be necessary in the following situations, for example:
You want your panelists to take part in a project that was created by somebody else on another EFSinstallation or using external software. However, for the incentive management in your panel you would like to record which panelists have completed the survey.
You want to conduct a conjoint survey using external survey software, the frame survey is to be created with EFS, though.
Topics
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Technical Background
The external survey start is based on the use of GET parameters. GET parameters are variable values that are transferred to a page via the URL. This is a well-established standard web technology. It has already been used in EFS for a long time, e.g. for the transfer of external data to a survey via URL parameters.
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syid: Project ID
sid: Sample ID of the appropriate sample in the secondary project. You can find this ID by scrolling over the title in the overview of samples with the mouse pointer while observing the link in the status bar of your browser. It looks like this:
http://www.your-domain.com/ front.php?module=panel_sampling&act=view_sample&pid=610&sid=611
pcode: Panelist code.
pses: Session ID of the panelists. If you can trust that the panelists have cookies activated, you can drop the session ID. But if you want to allow the jump with cookies switched off, the session ID must be transferred.
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syid: Project ID
sid: Sample ID of the “internal” sample of the secondary project.
pcode: Panelist code.
pses: Session ID of the panelists. If you can trust that the panelists have cookies activated, you can drop the session ID. But if you want to allow the jump with cookies switched off, the session ID must be transferred.
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