Data Modeling

Table of ContentsChapter 1Introduction???????????????????...3Chapter 2 entropy Mining Overview...??????????????4-9Chapter 3 mapping of Data Mining??.???????????.10-11Chapter 4Conclusion??????????????????..12-13Bibliography????????????????????????14Chapter 1IntroductionData mold is an important skill for IT professionals including: informationbase administrators, discriminating information lay outers, military control analysts and software developers. It is an crucial agent of nearly all IT projects. Without a selective information role influence thither is no blueprint for the design of the selective informationbase. Data form is the process of creating and extending data models which are visual representations of data and its organization. there are two major methodologies used to create a data model: the Entity-Relationship (ER) approach and the Object Model. The ERD Diagram or is the most popular type of data model. Data models kick the bucket at multiple levels i ncluding:?The Conceptual Data Model describes data from a high level. It defines the problem rather than the result from the blood line point of view. It entangles entities and their relationships. typically the conceptual data model is essential first. ?The Logical Data Model describes a logical etymon to a data project. It provides more inside information than the conceptual data model and is nearly ready for the creation of a database. These details include attributes, the individual pieces of information that will be included. Typically the logical data model is positive second. ?The sensual Data Model describes the implementation of data in a natural database. It is the blueprint for the database. Typically the physical data model is developed thirdChapter 2Data Modeling OverviewA data model is an abstract recital of the data structures that are needed by a database. The data structures include the data objects, the associations between data objects, and the rules wh ich govern trading operations on the object! s. The data model focuses on what data is required and how it should be organized rather than what operations will be performed on the data. A data model is... If you want to get a full essay, order it on our website: OrderEssay.net

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