Name | Description | Type |
User | the person or organization that is involved in a crowdsourcing activity | concept |
Requester | the initiator of a crowdsourcing project (any individual, company, or public organization) | concept |
Participant | the person that submits a contribution | concept |
Project | a carefully planned crowdsourcing activity that includes one or more tasks | concept |
Task | the smallest indivisible unit of work that is clearly described by a single instruction | concept |
Target Audience | an initial general restriction of the size of the crowd (internal, external, both) | concept |
Action Type | the type of action that is required to solve a crowdsourcing task | concept |
Aggregation Type | the mechanism of how the contributions of the crowd are combined | concept |
Latency Type | the time when the solution of a crowdsourcing task can be expected (immediate, untimed) | concept |
External Resource | all additional inputs that are required to accomplish a crowdsourcing task (e.g., applications, documents, or datasets) | concept |
Contribution | all data records, content items, documents, or code fragments that are part of the solution of a crowdsourcing task | concept |
Requirement | any human or technical aspect that is required to solve a crowdsourcing task | concept |
Human Requirement | any aspect that supports the composition of the crowd (demographic characteristics, qualification, etc.) | concept |
Technical Requirement | any aspect that specifies the required system of a crowd member | concept |
Reward Mechanism | the configuration of a certain type of a reward mechanism | concept |
Reward Nature | the definition of how a worker’s contribution is rewarded (fixed, performance-based, proportional, voluntary) | concept |
Reward Type | the specification of what kind of reward is offered (coupon, discount, good, lottery, money, no reward, resource access, virtual points) | concept |
Payout Method | the specification of which participants are rewarded (all, the winner only, or the top ten participants) | concept |
Evaluation Mechanism | the configuration that contains aspects of how a crowdsourcing user or contribution is evaluated | concept |
Evaluation Time | the point of time when the participants or the contributions are evaluated (after, before, simultaneously) | concept |
Evaluation Source | the agent that is engaged in the evaluation process (requester, participant, third party organization, algorithm) | concept |
Evaluation Method | the method that is used for the evaluation (majority decision, control group) | concept |
Evaluation Specificity | the specificity of the evaluation (an acceptance or rejection, a rating, an assessment form, or a free text response) | concept |
Evaluation Subject | the subject of the evaluation (contribution, participant) | concept |
title | a short phrase to describe the instance | attribute |
description | one or more sentences to describe the instance | attribute |
goal | the desired result of a crowdsourcing activity | attribute |
category | the class of a crowdsourcing activity (e.g., idea generation, problem-solving, or content creation) | attribute |
instruction | a direction that lead the crowd towards a common goal | attribute |
submission time | the time when the task is accessible for the crowd | attribute |
closure time | the time when the task expires | attribute |
confidentiality level | a value that limits the access to certain types of information | attribute |
complexity level | the amount of skills, experiences, and knowledge that is required to solve a crowdsourcing task | attribute |
priority level | the importance of a crowdsourcing task compared to other concurrent tasks | |
visibility mode | a specification of whether the workers can or can not see each other’s contributions | attribute |
interaction mode | the configuration that enables or disables peer-to-peer collaboration | attribute |
estimated duration | the estimated time required to complete a crowdsourcing task | attribute |
number of assignments | the number of participants who will be assigned to one crowdsourcing task | attribute |
amount | the number of points or the monetary value of the reward | attribute |
currency | the currency of the monetary reward | attribute |
gender | the gender that a participant should have | attribute |
minimum age (minAge) | the minimum age that a participant should have | attribute |
maximum age (maxAge) | the maximum age that a participant should have | attribute |
language | the language that a participant should speak | attribute |
country | the country in which a participant should live | attribute |
job title | the job title that a participant should have | attribute |
qualification type | the academic degree, certificate, or skill that is required to solve a crowdsourcing task | attribute |
qualification level | the proficiency level that is required for a certain qualification | attribute |
approval rate | the ratio of properly solved tasks to the number of submitted tasks | attribute |
number of approved tasks | the number of properly solved tasks | attribute |
hardware device | any hardware device (e.g., personal computer, mobile phone, smartphone, tablet computer) | attribute |
hardware feature | any build-in feature of the hardware device (e.g., processor, memory, GPS, camera, accelerometer, gyrometer) | attribute |
operating system | any operating system for personal computers or mobile devices (e.g., Microsoft Windows, OS X, Linux, Android, Windows Phone, iOS) | attribute |
software platform | any operating system independent platform (e.g., Java, Firefox) | attribute |
issues (requester, project) | the project that a requester issues | relation |
submits (participant, contribution) | the contribution that a participant submits | relation |
includes (project, task) | the crowdsourcing tasks that are included in a project | relation |
has next (task, task) | the subsequent crowdsourcing task | relation |
has previous (task, task) | the preliminary crowdsourcing task | relation |
owns (task, contribution) | the contributions that belong to a crowdsourcing task | relation |
belongs to (contribution, task) | the task that is associated to a contribution | relation |