Wageindicator Foundation: a Case Study
Huub Bouma
October 10, 2007

Introduction
• What is WageIndicator
• Organisation
• Questionnaire technique
• Web portals
• System architecture

What is WageIndicator
• Websites containing information about work and income
• Per country and per target
• Income questionnaire
• Salarycheck

Organisation
• WageIndicator Foundation
• goal: labor market transparency
mission statement:
”Share and compare wage information. Contribute to a
transparent labor market. Provide free, accurate wage data
through salary checks on national websites. Collect wage data
through web surveys.”

People involved
• scientific research
• datamanagement
• content
• management
• marketing
• technique

Techniques overview
• Salary Survey
• Questionnaire Management System (QMS) for constructing
the survey
• WageIndicator web sites

Survey technique
• engine (socrates) built with java
• GPL license
• modelled after the w3c XForms standard
• engine reads XML models

Questionnaire Management System
• surveys are constructed with the QMS web application
• only available for the survey designers
• plone application
• Custom i18n layer

Web sites
• Simple Archetypes based product
• Very simple, but flexible enough
• skinning for partners

Architecture
• HA architecture (2 production environments)
• Websites behind Apache and Squid
• Remote deployment (scp + quickinstaller)
• Content only managed on acceptance environment
• Synchronizing (from ACC to PRD)
• future: real Plone HA clustering, and load balancing

Statistics
• 37 plone portals
• 20 countries
• 10 servers: India(2), USA(4) en the Netherlands(4)
number of unique visitors for loonwijzer.nl
• last month: 404,772
• day peak: 100,000