{"id":19862,"date":"2020-01-28T14:47:17","date_gmt":"2020-01-28T14:47:17","guid":{"rendered":"https:\/\/www.arimetrics.com\/glosario-digital\/descriptive-analytics"},"modified":"2026-09-15T10:00:47","modified_gmt":"2026-09-15T10:00:47","slug":"descriptive-analytics","status":"publish","type":"encyclopedia","link":"https:\/\/www.arimetrics.com\/en\/digital-glossary\/descriptive-analytics","title":{"rendered":"Descriptive Analytics"},"content":{"rendered":"<p><img decoding=\"async\" class=\"boxpad alignright wp-image-22929 size-full\" src=\"https:\/\/www.arimetrics.com\/wp-content\/uploads\/2021\/11\/descriptive-analytis.jpg\" alt=\"Descriptive Analytics\" width=\"300\" height=\"300\" style=\"margin-top:0;\" srcset=\"https:\/\/www.arimetrics.com\/wp-content\/uploads\/2021\/11\/descriptive-analytis.jpg 300w, https:\/\/www.arimetrics.com\/wp-content\/uploads\/2021\/11\/descriptive-analytis-150x150.jpg 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><strong>Definition:<\/strong><\/p>\n<p><strong>Descriptive analytics<\/strong> is the set of techniques used to summarize and present observed data. It helps answer questions about what happened, how much, when, where, and how often within a defined period and scope.<\/p>\n<p>Its results may be expressed through counts, percentages, averages, distributions, changes, tables, and charts. <strong>It describes the available information, but it does not automatically identify causes or predict what will happen next.<\/strong><\/p>\n<p>It can be applied to historical or recent data. The distinction does not depend on the age of the data, but on the question: showing yesterday&#8217;s sales and summarizing visits from the last five minutes are both descriptive uses when they are limited to representing what was observed.<\/p>\n\n<h2>How Descriptive Analytics Is Performed<\/h2>\n<p>The analysis begins with a specific question and a shared definition of the metrics. <strong>A summary can only be interpreted when its population, period, and calculation rules are known.<\/strong><\/p>\n<p>A common process includes these five stages:<\/p>\n<ol>\n<li><strong>Define the objective:<\/strong> establish which phenomenon is to be described and which decision or monitoring activity the result will support.<\/li>\n<li><strong>Define the data scope:<\/strong> specify sources, population, period, unit of analysis, segments, and inclusion or exclusion criteria.<\/li>\n<li><strong>Check quality:<\/strong> review missing values, duplicates, instrumentation errors, definition changes, and possible coverage biases.<\/li>\n<li><strong>Calculate summaries:<\/strong> obtain counts, proportions, measures of central tendency, dispersion, changes, or distributions suited to the question.<\/li>\n<li><strong>Present and interpret:<\/strong> use tables, charts, or a <a href=\"https:\/\/www.arimetrics.com\/en\/digital-glossary\/dashboard\">dashboard<\/a> and document the context and limitations needed to read them.<\/li>\n<\/ol>\n<p>The mean does not always represent a dataset well. <strong>The median, percentiles, and distribution may be more informative<\/strong> when there are extreme values or groups with different behaviors. Likewise, a percentage change needs its reference value and absolute volume to avoid disproportionate interpretations.<\/p>\n<p>Comparison also requires equivalent bases. Changing the time window, the definition of a user, or the way an event is recorded can produce an apparent difference that does not correspond to a real change in the phenomenon.<\/p>\n<h2>Applications of Descriptive Analytics<\/h2>\n<p>Descriptive analytics is used in operations, finance, marketing, product, and customer service. <strong>Its purpose is to turn scattered observations into an understandable representation of the state and development of an activity.<\/strong><\/p>\n<p>Common applications include:<\/p>\n<ul>\n<li><strong>Activity monitoring:<\/strong> summarize orders, revenue, inventory, incidents, or service usage during a period.<\/li>\n<li><strong>Time comparison:<\/strong> observe daily, monthly, or year-over-year changes using compatible calendars and criteria.<\/li>\n<li><strong>Segment analysis:<\/strong> compare results by product, channel, device, location, or customer type without confusing an observed difference with its cause.<\/li>\n<li><strong>Pattern and exception detection:<\/strong> locate concentrations, seasonality, outliers, or deviations that require further investigation.<\/li>\n<li><strong>Communication of results:<\/strong> present <a href=\"https:\/\/www.arimetrics.com\/en\/digital-glossary\/kpi\">KPIs<\/a> and metrics with definitions, sources, and references that support interpretation.<\/li>\n<\/ul>\n<p>In <a href=\"https:\/\/www.arimetrics.com\/en\/digital-analytics-agency-spain\">web analytics<\/a>, for example, it can describe users, sessions, page views, events, traffic sources, and conversions. <strong>A decrease or increase shows what changed in the recorded data<\/strong>, but it does not by itself demonstrate whether the cause was a campaign, a technical incident, seasonality, or a measurement change.<\/p>\n<p>Descriptive reports can guide new questions and help prioritize reviews. They do not automatically determine which action should be taken or guarantee that the observed pattern will continue.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-19864 size-full\" src=\"https:\/\/www.arimetrics.com\/wp-content\/uploads\/2020\/01\/analitica_descriptiva-1.jpg\" alt=\"Graphical example of descriptive analytics\" width=\"742\" height=\"500\" srcset=\"https:\/\/www.arimetrics.com\/wp-content\/uploads\/2020\/01\/analitica_descriptiva-1.jpg 742w, https:\/\/www.arimetrics.com\/wp-content\/uploads\/2020\/01\/analitica_descriptiva-1-300x202.jpg 300w\" sizes=\"(max-width: 742px) 100vw, 742px\" \/><\/p>\n<h2>Differences from Other Types of Analytics<\/h2>\n<p>Descriptive analytics is often presented alongside other approaches. <strong>The boundaries are not always rigid<\/strong>, but each primarily answers a different question:<\/p>\n<ul>\n<li><strong>Descriptive:<\/strong> summarizes what happened or the observed state.<\/li>\n<li><strong>Diagnostic:<\/strong> investigates why it may have happened through comparisons, breakdowns, and hypothesis testing.<\/li>\n<li><strong>Predictive:<\/strong> estimates unknown or future outcomes using models and assumptions, as explained by <a href=\"https:\/\/www.arimetrics.com\/en\/digital-glossary\/predictive-analytics\">predictive analytics<\/a>.<\/li>\n<li><strong>Prescriptive:<\/strong> evaluates alternatives and proposes actions according to objectives, constraints, and estimated consequences.<\/li>\n<\/ul>\n<p>The same project may combine these approaches. A report describes a decrease in conversions; diagnostic analysis studies explanations; a model estimates future scenarios; and a prescriptive evaluation compares possible responses. <strong>Moving from one stage to another requires additional data, methods, and validation.<\/strong><\/p>\n<p>An observed correlation between two variables does not prove causation either. Experiments, quasi-experimental designs, or other evidence may be needed to attribute an effect. <strong>The value of descriptive analytics depends on representing the data faithfully and not claiming more than the data can support.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>What descriptive analytics is, how it summarizes observed data, its applications, process, metrics, differences, and limitations.<\/p>\n","protected":false},"author":6,"featured_media":79653,"template":"","encyclopedia-tag":[1302],"class_list":["post-19862","encyclopedia","type-encyclopedia","status-publish","has-post-thumbnail","hentry","encyclopedia-tag-data-science"],"_links":{"self":[{"href":"https:\/\/www.arimetrics.com\/en\/wp-json\/wp\/v2\/encyclopedia\/19862","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.arimetrics.com\/en\/wp-json\/wp\/v2\/encyclopedia"}],"about":[{"href":"https:\/\/www.arimetrics.com\/en\/wp-json\/wp\/v2\/types\/encyclopedia"}],"author":[{"embeddable":true,"href":"https:\/\/www.arimetrics.com\/en\/wp-json\/wp\/v2\/users\/6"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.arimetrics.com\/en\/wp-json\/wp\/v2\/media\/79653"}],"wp:attachment":[{"href":"https:\/\/www.arimetrics.com\/en\/wp-json\/wp\/v2\/media?parent=19862"}],"wp:term":[{"taxonomy":"encyclopedia-tag","embeddable":true,"href":"https:\/\/www.arimetrics.com\/en\/wp-json\/wp\/v2\/encyclopedia-tag?post=19862"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}