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Discussion



               4.1.1 Data Processing

                  After  collecting  data,  raw data  is converted  into  meaningful
               statements  through the data  processing, data  analysis and data
               interpretation  and presentation.   Data reduction  or processing
               mainly involves various manipulations  necessary for preparing
               the data for analysis.  The process (of manipulation)  could be            ◆ Data reduction
               manual or electronic. It involves editing, categorising the open-
               ended  questions,  coding,  computerisation  and  preparation  of
               tables and diagrams. Data processing is concerned with editing,
               coding,  classifying,  tabulating  and  diagramming  research  data.
               The essence of data processing in research is data reduction which
               is explained in detail in this unit.
                  Data  processing  implies  editing,  coding,  classification  and
               tabulation of collected data so that they are amenable to analysis.
               Data processing occurs when data is collected and translated into
               usable information.  Usually performed  by data scientists,  it is          ◆ Data into
               important for data processing to be done correctly so as not to           information
               negatively affect the end product or data output. Data processing
               starts with data in its raw form and converts it into a more readable
               format (graphs, documents, etc.) giving it the form and context
               necessary to be interpreted by computers and utilised by employees
               throughout an organization.
               4.1.1.1 Six Stages of Data Processing
                  a. Data collection

                  Collecting data is the first step in data processing. Data is pulled
               from available sources, including data lakes and data warehouses.          ◆ Acquisition of data
               It is important that the data sources available are trustworthy and
               well-built so the data collected (and later used as information) is
               of the highest possible quality.
                  b. Data preparation

                  Once the data is collected, it then enters the data preparation
               stage. Data preparation, often referred to as “pre-processing” is
               the stage at which raw data is cleaned up and organised for the
               following stage of data processing. During preparation, raw data           ◆ Pre-processing stage
               is diligently checked for any errors. The purpose of this step is
               to eliminate mistakes in data (redundant, incomplete, or incorrect
               data) and begin to create high quality data for the best business
               intelligence








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