---
title: "Data Understanding: Introduction"
description: "## Goal Initial collection of, and familiarization with, the data required to build the selected model The phase overlaps with the Business Understanding and Data Preparation phases. ## Tasks - Collect initial data and build experimental datasets - Identify data…"
url: "https://sdscope.com/doc/data-understanding-introduction/"
updated: "2022-07-06"
category: 5. Data Understanding
---

# Data Understanding: Introduction

## Goal

Initial collection of, and familiarization with, the data required to build the selected model

The phase overlaps with the Business Understanding and Data Preparation phases.

## Tasks

- Collect initial data and build experimental datasets
- Identify data quality issues, e.g., missing values, garbage records, duplicates, etc
- Determine suitability of data for project in terms of number of records, distribution of features, quality of labels, etc
- Discover first insights into the data
- Find interesting subsets to form hypotheses regarding hidden information
- Generate ideas about data preparation (the next phase of the project lifecycle)

These tasks require a good understanding of data and techniques in exploratory data analysis (EDA); these are discussed in the remainder of this section.

## Roles

- Project Sponsor
- Domain Expert
- Business User
- Data Engineer
- Database Administrator
- Data Scientist/Machine Learning Engineer
- Data Developer/Software Engineer

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