abstract:A database model is a type of data model that determines the logical structure of a database and fundamentally determines in which manner data can be stored, organized, and manipulated. The most popular example of a database model is the relational model, which uses a table-based format.
Instead of trying to revamp JIMS with brand-new technology, Harris County has stuck to its grand-design architecture by migrating its legacy database to the more current Model 204 Database Management System, made by Computer Corporation of America, and rewriting Cobol applications in the Model 204 language.
Using his proprietary model and database of historical trading situations, Way calculates probabilities of future price movements for individual securities.