How does the Database Systems Lifecycle interact with the Software Development Systems Lifecycle
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- A new sales ordering system needs a relational database that contains a customer table, a product inventory table, and an order table. Use a word-processing, graphics, or spread-sheet program to draw an entity-relationship diagram showing the relationships among these entities. Next, design each of these tables showing the keys and attributes to be included in each table. Include five sample records for each table.A new sales ordering system needs a relational database that contains a customer table, a product inventory table, and an order table. Use a word-processing, graphics, or spreadsheet program to draw an entity-relationship diagram showing the relationships among these entities. Next, design each of these tables showing the keys and attributes to be included in each table. Include five sample records for each table.Possible implications for the design of a distributed database may be drawn from the differences between a local area network and a wide area network.
- At least nine separate components of a typical database environment should be mentioned.A transactional database is constantly being updated, whereas a data warehouse updates much less often.Unlike a database, which stores data, an information system makes use of it. Is there any impact on database design as a result of this relationship?
- A database system has replaced the traditional processing of files. As a consequence of this new database strategy, there are several advantages. Despite its many benefits, the database system has several limitations that should be properly examined.At least nine separate parts of a typical database environment should be talked about.A database is to be designed for a college to monitor students’ progress throughout their course of study. The students are studying for a degree (such as BA, M.Sc., etc.) within the framework of the modular system. The college provides a number of modules, each being characterized by its code, title, and credit value, module leader, teaching staff and the department they come from. A module is coordinated by a module leader who shares teaching duties with one or more lecturers. A lecturer may teach (and be a module leader for) more than one module. Students are free to choose any module they wish but the following rules must be observed: some modules require prerequisites modules and some degree programs have compulsory modules. The database is also to contain some information about students including their numbers, names, addresses, degrees they study for, and their past performance (i.e. modules taken and examination results).Draw an ER diagram for this database using as much of the…
- A database is to be designed for a college to monitor students' progress throughout their course of study. The students are studying for a degree (such as BA, M.Sc., etc.) within the framework of the modular system. The college provides a number of modules, each being characterized by its code, title, and credit value, module leader, teaching staff and the department they come from. A module is coordinated by a module leader who shares teaching duties with one or more lecturers. A lecturer may teach (and be a module leader for) more than one module. Students are free to choose any module they wish but the following rules must be observed: some modules require prerequisites modules and some degree programs have compulsory modules. The database is also to contain some information about students including their numbers, names, addresses, degrees they study for, and their past performance (i.e. modules taken and examination results). Draw an ER diagram for this database using as much of…A database is to be designed for a college to monitor students’ progress throughout their course of study. The students are pursuing a degree (such as BA, BA (Hons) MSc, etc.) within the framework of a modular system. The college provides a number of modules, each being characterized by a code, title, and a credit value. A module belongs to one department and is co-ordinated by a module leader who shares teaching duties with one or more lecturers. A lecturer may teach (and be a module leader for) more than one module. Information about a lecturer include his/her IDNO, Name which is comprised of a surname and first name, Address {StrNo, Zip Code, City} and they are required to have at least two phone numbers. Every lecturer belongs to a given department, and a department hosts at least two modules. Each department has a code, name. Student are free to choose any module they wish but can’t do more than five and less than three and; a module can only be taught if it has more than ten…A database system has taken the role of the traditional file processing system. Utilizing this fresh database approach comes with a number of beneficial outcomes. The database technique provides a number of benefits, but it also has a number of restrictions that need to be explained in further detail.