Projectcreditnet provided the contributor taxonomy below (headed up by Jo Scott, Liz Allen, Amy Brand et al), and the BioMed Central Design team provided the initial badge designs. These are licensed under CC-BY 4.0 for maximum reuse.
T1 - Conceptualization
Ideas; formulation or evolution of overarching research goals and aims.
T2 - Methodology
Development or design of methodology; creation of models.
T3 - Software
Programming, software development; designing computer programs; implementation of the computer code and supporting algorithms; testing of existing code components.
T4 - Validation
Verification, whether as a part of the activity or separate, of the overall replication/reproducibility of results/experiments and other research outputs.
T5 - Formal Analysis
Application of statistical, mathematical, computational, or other formal techniques to analyse or synthesize study data.
T6 - Investigation
Conducting a research and investigation process, specifically performing the experiments, or data/evidence collection.
T7 - Resources
Provision of study materials, reagents, materials, patients, laboratory samples, animals, instrumentation, computing resources, or other analysis tools.
T8 - Data Curation
Management activities to annotate (produce metadata), scrub data and maintain research data (including software code, where it is necessary for interpreting the data itself) for initial use and later re-use.
Preparation, creation and/or presentation of the published work, specifically writing the initial draft (including substantive translation).
Preparation, creation and/or presentation of the published work by those from the original research group, specifically critical review, commentary or revision - including pre- or post-publication stages.
T11 - Visualization
Preparation, creation and/or presentation of the published work, specifically visualization/data presentation.
T12 - Supervision
Oversight and leadership responsibility for the research activity planning and execution, including mentorship external to the core team.
T13 - Project Administration
Management and coordination responsibility for the research activity planning and execution.
T14 - Funding Acquisition
Acquisition of the financial support for the project leading to this publication.
T15 - Dissemination -- If a few of the authors have been blogging, tweeting, talking to the press, writing the press release, etc about the paper, I think this is a worthwhile skill to highlight.