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A Data Model in software engineering is an abstract model that organizes and documents the business data for interaction between team members and is used as a plan for creating applications, how data are accessed and stored. According to Hoberman (2009), "A data model is a wayfinding tool for both IT professionals and business, which needs a set of text and symbols to precisely illustrate a subset of real information to enhance communication within the organization and thereby lead to a more stable and flexible application environment." A data model explicitly calculates the structure of structured data or data. Typical applications of data models add database models, enabling exchange of data, and design of information systems. Generally data models are described in a data modeling language.
This assignment concerns the Research database. The database ER model is shown above, where attributes are omitted for clarity. The relational model for the database is: Departm
Compare the two log-based recovery schemes in terms of ease of implementation and overhead cost. Ans: There are two types of log based recovery techniques: deferred update
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why three level architecture had been developed/
I need some help with my normalization database homework.
Write short notes on Schema diagram. A database schema along with primary key and foreign key dependencies can be depicted pictorially by schema diagram. Every relation appears
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We need help in Booking System for Golf Business Development of a web based booking system which permits clients to book golf lessons with the following features- a) 4 user p
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