Free/Libre and Open Source Software Rishab Aiyer Ghosh Ruediger Glott Bernhard Krieger Gregorio Robles - Developer Survey - International Institute of.

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Free/Libre and Open Source Software Rishab Aiyer Ghosh Ruediger Glott Bernhard Krieger Gregorio Robles - Developer Survey - International Institute of Infonomics, Maastricht

Findings: Developer Survey Global (random sample, web-based) 2700 responses, verified against software source code authorship Detailed questionnaire: 42 questions on demography, motivation, earning/ employment

Current Age and Starting Age of F/LOSS Developers

Years of Experience in F/LOSS

Professional Background

Gross Income of Developers

Hours per Week Spent on Development

Total Number of F/LOSS Projects

Leadership Experience

Contacts to other Developers

Main Income from Software?

Rewards from F/LOSS Activity

Reasons to Join and to Stay

Open Source or Free Software?

Degrees of Activity in F/LOSS

Activity and Age Structure

Experience and Activity

Activity and Professional Background

Activity and Reasons to Start F/LOSS

Degree of Activity and Reasons to Continue with F/LOSS

Reasons to Start and to Continue with F/LOSS – Low and High Activity Level

Activity in F/LOSS and Development of Proprietary Software

Activity in F/LOSS and Time Investment

Activity and Gross Income

Software as Source of Main Income and Degree of Activity

Degree of Activity in F/LOSS and Monetary Rewards

Activity in F/LOSS and Self-Assignment to OSS- or FS-Community

Reliability and Validity of Data Random Sample Self-Posting of Questionnaire Identification of Subsample Multi-perspective targeting of research questions Fake Answers

Limitation of the Results One-channeled communication stream Problem of Content Definition Missing Answering Context Limited Variety of Answers  Qualitative Research Methodology

References FLOSS report: FLOSS workshop, Brussels, Oct 14: