Database development and database design is central to our custom application development projects. After all, regardless of the whether you are planning desktop or web deployment, your application will rely on information that must be effectively and efficiently stored.
Good database design requires an understanding of relational database concepts. Relational database management systems require the proper organizing of data to minimize redundancy insure data integrity. Proper database design is required if you want the database to be easily expandable as needs grow. The process by which database design is improved is called normalization. Normalization usually involves dividing large tables into smaller (and less redundant) tables and defining relationships between them. The objective is to isolate data so that additions, deletions, and modifications of a field can be made in just one table. Then, reports and views of the data reflect the change everywhere due to properly defined data relationships. Good design also ensures that the database responds more efficiently.
Database design is the most critical, yet sometimes overlooked, part of the application development lifecycle. The process of creating a proper data model helps the project team uncover the right questions to ask managers and end users. Effective database design gives application developers the ability to program systems that perform properly from the beginning. This reduces the overall time it takes to complete the project, which in turn reduces project development costs.