Utilizing the ER product for more substantial facts produces many complexity although building a database design, So so as to lower the complexity Generalization, Specialization and Aggregation had been introduced during the ER product. These had been used for information abstraction. In which an abstraction mechanism is utilized to h https://archermgtuz.bloguetechno.com/how-hbr-case-solution-can-save-you-time-stress-and-money-71923189