DATA MANAGEMENT AND DATABASES

Data Management Data management is the process of controlling the information generated during a research project or transaction

data management principles Data Accuracy Data without errors, accurate data or information can lead to take correct decisions Data Security Protection of data so it is not misused or lost Data Maintenance Procedures used keep file data current Data Sharing - explains why sharing research data is important

What is a data base A database is a collection of information that is organized so that it can easily be accessed, managed, and updated. Databases are designed to offer an organized mechanism for storing, managing and retrieving information. They do so through the use of tables. Databases tables

THE HIERARCHY OF DATA

DATA FILE MAINTENANCE Adding Records: records are added to a file when you need to add additional information. Follow the example in section 10.5 of the prescribed textbook. Changing Records: you may change you records for the following two reasons: To correct inaccurate data To update older data Deleting records: when you no longer require a record in a file you remove it by deleting.

DATABASE MODELS 4,7