The purpose of requirement analysis is to document what database users need or want to be able to do with the database. Requirement analysis typically involves talking to people currently involved with the data and analyzing usage characteristics such as information flow and type and frequency of transactions. The goal is to convert an informal description of requirements into a formal specification, which will become the basis of the database design.
Conceptual design consists of two separate but parallel activities. Schema design produces a conceptual schema, or organizational framework, for the database, independent of the DBMS to be used. The purpose of conceptual design is to produce a high-level data model that can be understood by everyone, including non-technical users. Transaction design produces high-level specifications for the transactions identified during requirement analysis. The importance and frequency of transactions influences physical database design.
The purpose of choosing a DBMS is to establish which framework is best, technically, economically and organizationally, for implementing the database. A DBMS must support the query languages, user and programmer interfaces and hardware platforms required, while still being economical in terms of hardware, software and staff-training costs.
Logical design, also known as data model mapping, involves converting the conceptual schema into a data model for the chosen DBMS. One DBMS may implement the same data model differently from another, so the end product of logical design is a set of data definition language commands in the language of the chosen DBMS.
Physical design involves choosing the specific storage structure of database files -- flat files, heaps, B+ trees, ISAM -- and the way in which those files are accessed. The emphasis of physical design is typically on database performance, such that data items referenced by frequently used transactions are retrieved from the database as quickly as possible.
The purpose of implementation is to physically create and populate the database so that it can be used. The implementation phase involves compiling and executing data definition language commands to create the database, automatically or manually populating the database -- data may need to be converted from a existing format -- and implementing applications programs, so that users can access and manipulate the data in a controlled way.
There are actually seven stages for designing a relational database. They are:
1) Formulate an idea for a solution
2) Gather information and clarify needs
3) Develop a list of all useful fields
4) Organize the fields into logical tables
5) Determine and define table relationships
6) Test, refine and improve
7) Develop queries, forms, and reports
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To identify the use of the finished database.
The first and most important step in designing a database is creating a schema. After creating schema tables are created and data is entered in to the tables.
The following are the basic steps of creating databaseFigure out why you need database-:This is the first step in creating database which decide reason for creating database example creating database for store dataSelect type of software which used for creating database example Microsoft access ,database oracle MySQL database.determine your field in data base this include column and low of the databasecreate a table for each portion of databasegroup your field into tableenter the data into your database.
1. Requirement Analysis2. Conceptual List_six_major_steps_that_you_would_take_in_setting_up_a_database_for_a_particularBase Design3. Logical Data Base Design4. Schema Refinement5. Physical Data Base Design6. Security Design
To use the module, we need to create a connection object that represents the database, it needs to have a username, password, and host. Here are the steps to create a database: open Microsoft access, create a new database, save the file, and browse the new database menu.
Steps involve in creating report. 1. Open the database window (F11) and click on the Report tab. * 2. Click New. A dialog box appears. * 3. Choose between Columnar and Tabular. * 4. Select the table or query that you want to use for your report. * 5. Click OK. * ** 6. Repeat the first two steps above. ** 7. When the dialog box appears, click Design View. ** 8. Select the table or query that you intend to use. ** 9. Click OK. *
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there are 3 steps
creating a new patient file which steps would you follow
major steps in planning
There are five steps to planning database files. These steps are collecting information, determining objects, modeling said objects, determining every object's information, and determining the relationships the objects have with one another.
Four half steps, or two whole steps.
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