Business Rules And Data Models

Business rule and data modelsJuly 152014There is the problem with the conventional file systems. In early days, the database applications were made on the top of the file system. There are many drawbacks of using file systems:Redundancy in data and inconsistency: it means there are many file formats and duplicate information exists in the different files.The access to data id difficult: for creating the new task, there is the requirement to write the new program.Data isolation: there should be multiple files and the formats. This is difficult to separate the files from one another.Problems in integrity: there is problem to add the new constraint or change the existing constraints in the files.Atomicity: there should be failure due to the electricity problem or any other problem which will lead to inconsistent data.Concurrent access by the multiple users: there is no controlled concurrent access to the files.Security problemsDatabase provides the solution to all others problems that are occurred in the file system. Database provides the consistent data. There no problem of atomicity. The data isolation is easily by