/**
 * # JSON data format
 *
 * Describes the JSON data of the callback methods
 *
 * ## Users
 *
 * - {@link askiaVista.data.userInfo JSON format of user information}
 *
 * ## Surveys
 *
 * - {@link askiaVista.data.survey JSON format of survey}
 * - {@link askiaVista.data.surveySettings JSON format of survey settings}
 * - {@link askiaVista.data.surveyStatus JSON format of survey status}
 * - {@link askiaVista.data.language JSON format of survey language}
 * 
 * ## Questions
 *
 * - {@link askiaVista.data.question JSON format of question}
 * - {@link askiaVista.data.response JSON format of response}
 * - {@link askiaVista.data.calculatedQuestion JSON format of calculated question}
 * - {@link askiaVista.data.profile JSON format of profile of questions}
 *
 * ## Cross-tab settings and Calculations
 *
 * - {@link askiaVista.data.xTabSettings JSON format of cross-tab settings}
 * - {@link askiaVista.data.calculation JSON format of calculation}
 *
 * ## Common properties
 * 
 * - {@link askiaVista.data.subPopulation JSON format of sub-population}
 * - {@link askiaVista.data.universe JSON format of universe}
 * - {@link askiaVista.data.level JSON format of loop level}
 * - {@link askiaVista.data.weighting JSON format of weighting}
 * - {@link askiaVista.data.wave JSON format of wave}
 *
 * ## Cross-tab
 *
 * ### Definition
 *
 * - {@link askiaVista.data.xTab.definition JSON format of the cross-tab definition}
 *
 * ### Results
 *
 * - {@link askiaVista.data.xTab.page JSON format of result pages}
 * - {@link askiaVista.data.xTab.table JSON format with the table semantic}
 * - {@link askiaVista.data.xTab.chart JSON format with the chart semantic}
 *
 * ## Interviews
 *
 * - {@link askiaVista.data.interviews JSON format of interviews}
 *
 * ## Styling
 *
 * - {@link askiaVista.data.tabStyle JSON format of table style}
 * - {@link askiaVista.data.chartTemplate JSON format of chart template}
 *
 * ## Portfolios
 *
 * - {@link askiaVista.data.portfolio JSON format of portfolio}
 * - {@link askiaVista.data.portfolioItem JSON format of portfolio item}
 *
 * ## Social network
 *
 * - {@link askiaVista.data.sharing JSON format of sharing}
 *
 * ## Activity
 *
 * - {@link askiaVista.data.activity JSON format of the activity}
 * - {@link askiaVista.data.activityStats JSON format of the activity statistics}
 * - {@link askiaVista.data.activityFilters JSON format of the activity filters}
 *
 * @class askiaVista.data
 * @protected
 */
