By Toby J. Teorey
Database platforms and database layout expertise have gone through major evolution lately. The relational info version and relational database platforms dominate enterprise purposes; in flip, they're prolonged by way of different applied sciences like facts warehousing, OLAP, and knowledge mining. How do you version and layout your database program in attention of recent know-how or new enterprise wishes? within the commonly revised fourth version, you will get transparent reasons, plenty of excellent examples and an illustrative case, and the fairly functional recommendation you may have come to count number on-- with layout ideas which are appropriate to any SQL-based method . yet you are going to additionally get lots that can assist you develop from a brand new database dressmaker to an skilled fashion designer constructing industrial-sized platforms. + a close examine the Unified Modeling Language (UML-2) in addition to the entity-relationship (ER) process for facts necessities specification and conceptual modeling--with examples during the ebook in either methods! + the main points and examples of ways to exploit facts modeling options in logical database layout, and the transformation of the conceptual version to the relational version and to SQL syntax; + the basics of database normalization throughout the 5th common shape; + sensible insurance of the foremost matters in enterprise intelligence--data warehousing, OLAP for selection help structures, and knowledge mining; + examples for the way to take advantage of the most well-liked CASE instruments to address complicated facts modeling difficulties. + workouts that try realizing of all fabric, plus recommendations for lots of routines.
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Extra resources for Database Modeling and Design: Logical Design, 4th Edition
Consistency of GUI style, that is, of rules for the user viewing and manipulating the GUI, is important to users regardless of the GUI’s other style attributes (Dayton, McFarland, and White, 1994; McFarland and Dayton, 1995). Consistency within the single GUI being designed in this Bridge session allows users to do many tasks once they have learned to do any task. Consistency of this GUI with industry-wide style standards allows users to utilize their knowledge of other software products in their use of this product and vice versa.
Wood ISBN: 0849331250 Publication Date: 12/02/97 Search this book: Go! 2. BROAD CONTEXT OF THE BRIDGE The Bridge for fundamental GUI designing is itself one methodology in a complete start-to-finish approach to taking a GUI project from proposal creation through checking the implementation against the user requirements document. The major methodologies in that approach are listed below, with the Bridge methodology italicized. • Proposal Creating • Project Planning • Detailed Customer Requirements Creating • Fundamental GUI Designing — “The Bridge” • Part 1: Expressing User Requirements as Task Flows • Part 2: Mapping Task Flows to Task Objects • Part 3: Mapping Task Objects to GUI Objects • Detailed GUI Designing • Formal User Requirements Document Writing • Conformance Checking of the Implemented GUI Against the User Requirements Document The Bridge does not require use of any of those other methodologies because The Bridge is only one component of any start-to-finish software development process.
LOW-TECH MATERIALS The task flows are documented with index cards for the steps and with removable sticky notes (“stickies”) for the flow arrows. ) Stickies are also used for labeling problems and solutions on the flows. The task objects are documented with index cards and stickies. The GUI design is documented with photocopies of empty windows and menus and with stickies for everything else. ) Low-tech materials have many benefits (Virzi, 1989). They provide an “equal opportunity work surface”, as Muller says, because users who have little experience with computers can express themselves with those materials just as readily as the computer-savvy participants can.