ICDL Data Analytics (ICDL) study guide
ICDL Data Analytics · Work through your exam, one topic at a time.
ICDL Data Analytics is a professional-level certification in the ICDL programme, the digital-competence framework run by the ICDL Foundation, which describes itself as "a global social enterprise committed to raising standards of digital competence in the workforce, education and society." ICDL certification is available in more than 100 countries through a network of more than 20,000 testing centres. Data Analytics belongs to the ICDL PROFESSIONAL stream, which ICDL positions as "professional digital skills for occupational effectiveness" - that is, skills you apply on the job rather than general computer literacy. It suits analysts, administrators, finance and operations staff, marketers, researchers and students moving into data-facing roles who want a structured, externally recognised credential for work they may already do informally. The exam is organised around four areas: analytics concepts and fundamentals; data preparation and management; data analysis and interpretation; and data visualisation and reporting. The ICDL Data Analytics study guide has 4 sections and about 1,433 words.
01Data Analytics Concepts and Fundamentals
Data analytics turns raw data into decisions. Distinguish data (raw recorded values), information (data processed into meaning, such as a monthly total) and knowledge (information combined with experience to guide action).
331 words, about 2 min02Data Preparation and Management
Data preparation often consumes more effort than analysis itself. A reliable workflow is: define the question → identify sources → import → profile and assess quality → clean → transform → validate → document.
348 words, about 2 min03Data Analysis and Interpretation
Descriptive statistics condense a column into a few values. Measures of centre : mean (arithmetic average, uses every value), median (middle value when sorted, robust to extremes), mode (most frequent, the only sensible option for nominal data).
365 words, about 2 min04Data Visualisation and Reporting
Chart choice follows the question and the data types. Bar/column : compare values across categories.
389 words, about 2 min