What Are The Three Major Steps Of Database Design?

What are the six phases of database design?

The Database Life Cycle (DBLC) contains six phases, as shown in the following Figure: database initial study, database design, implementation and loading, testing and evaluation, operation, and maintenance and evolution..

What is data life cycle?

The data lifecycle represents all of the stages of data throughout its life from its creation for a study to its distribution and reuse. … After data is collected, it is processed for distribution so that it can be archived and used by other researchers at a later date.

What are the five steps of data modeling?

We’ve broken it down into five steps:Step 1: Understand your application workflow.Step 2: Model the queries required by the application.Step 3: Design the tables.Step 4: Determine primary keys.Step 5: Use the right data types effectively.

What is the structure of database?

Designing your Database Record Structure The database structure is the collection of record type and field type definitions that comprise your database: Record Types. … These are the properties or attributes that describe your record types (e.g. Gender, Age, Height etc.).

What are the steps in database design?

The design process consists of the following steps:Determine the purpose of your database. … Find and organize the information required. … Divide the information into tables. … Turn information items into columns. … Specify primary keys. … Set up the table relationships. … Refine your design. … Apply the normalization rules.

What are the three sources of database design and implementation?

The three sources for which the database design and implementation needed are as follows:Existing data.Projects that are intended for development of new systems.Redesign of existing databases.

What is database design diagram?

Database design illustrates a detailed data model of a database also known as the database schema. … This enables you to visualize the relationships between different entities in the system and plan your database diagram accordingly. Creately supports creating entity relationship diagrams among many other diagram types.

How long does it take to design a database?

The architecture of a system takes anywhere between one to two weeks to develop depending on the size of the system and the complexity. The largest amount of time in software development is spent coding the application.

How do you create a database diagram?

To create a new database diagramIn Object Explorer, right-click the Database Diagrams folder or any diagram in that folder.Choose New Database Diagram on the shortcut menu. The Add Table dialog box appears.Select the required tables in the Tables list and click Add.

How do you start a data model?

Steps to create a Logical Data Model:Get Business requirements.Analyze Business requirements.Create High Level Conceptual Data Model. … Create a new Logical Data Model. … Select target database where data modeling tool creates the scripts for physical schema.More items…•

What factors will influence how you design the database?

Top 10 considerations when choosing a Database Management system1) Usability. Consider how user-friendly the system will be for all those members of staff required to use it. … 2) Visualisation & Reporting. … 3) Security. … 4) Functionality. … 5) Support & Development. … 6) Integration. … 7) Scalability. … 8) Cost and Suitability.More items…•

What are the main phases of database development?

Database design is made up of three main phases, namely conceptual, logical, and physical design. the database,which includes identification of the important entities, relationships, and attributes.

What is the first step in database design?

Data modelling is the first step in the process of database design. This step is sometimes considered to be a high-level and abstract design phase, also referred to as conceptual design. The aim of this phase is to describe: The data contained in the database (e.g., entities: students, lecturers, courses, subjects)

How do you implement a database?

The following are steps in the implementation phase:Install the DBMS.Tune the setup variables according to the hardware, software and usage conditions.Create the database and tables.Load the data.Set up the users and security.Implement the backup regime.

How is data modeling done?

Conclusion. Data modeling is the process of developing data model for the data to be stored in a Database. … The main aim of conceptual model is to establish the entities, their attributes, and their relationships. Logical data model defines the structure of the data elements and set the relationships between them.

What are the 4 types of database?

Four types of database management systemshierarchical database systems.network database systems.object-oriented database systems.

What are the types of database design?

Some of the most common ones include:Hierarchical database model.Relational model.Network model.Object-oriented database model.Entity-relationship model.Document model.Entity-attribute-value model.Star schema.More items…