Data management is a bit like clean water. Clean drinking water is of vital importance; imagine it was contaminated? ‘Clean’ data is the basis for good reports and analyses and thus for a successful organization.
Many data analysts spend 50-80% of their time on data preparation. This heavily influences the amount of time left to obtain new insights. Organizing responsibilities and processes with regards to data quality and setting up an adequate data warehouse ensures that your data remains accurate and up to date in the long run.