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151EC111 Introduction to Design History is the structuring of data according to a database model is known as database design. The designer decides what data should be saved and how the various data parts should interact. They may start fitting the data to the database model using this information. The data is managed via a database management system. Classifying data and defining interrelationships are two aspects of database architecture. An ontology is a kind of theoretical representation of data. The philosophy that underpins the database's architecture is called ontology.

In the vast majority of circumstances, a person designing a database has competence in database design rather than knowledge in the domain from which the data to be kept is sourced, such as financial data, biological data, and so on. As a result, the data to be saved in the database must be decided in collaboration with someone who is knowledgeable in that area and is aware of the data that must be put in the system.

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Unit details of 151EC111 Introduction to Design History

Unit details of this course include the following:

Unit details: 151EC111

Location: United Kingdom

Study Level: Undergraduate

Brief on 151EC111 Introduction to Design History

This is a technique that is often regarded as part of requirements analysis, and it needs the database designer's competence to extract the required information from persons with domain knowledge. This is due to the fact that persons with the required domain expertise are often unable to describe clearly what their database system needs are because they are not used to thinking in terms of discrete data components that must be kept.

Requirement Specification may determine the data be saved. Once a database designer understands the data that will be kept in the database, they must decide where the data is dependent. When you alter data, it's possible that you're also modifying data that isn't visible. An address is deemed reliant on a name since it is determined by a name.

Once the linkages and dependencies between the different pieces of information have been established, the data may be organized into a logical structure that can then be mapped into the database management system's storage objects. Tables, which hold data in rows and columns, are the storage objects of relational databases. The storage objects in an Object database are identical to the objects used by the Object-oriented programming language to create the applications that will manage and access the data. Relationships may be specified as characteristics of the relevant object classes or as methods that operate on the object classes.

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151EC111 assessment answers are designed advice is that the designer should start with a completely normalized design and then apply selective demoralization for performance reasons. Storage space vs. performance is the trade-off. The less data redundancy there is, yet simple data retrieval patterns may now need complicated joins, merges, and sorts, which takes up more data read and compute cycles. Non-normalized designs, such as the dimensional modeling approach to data warehouse design, are expressly recommended by certain modeling disciplines, such as the dimensional modeling approach to data warehouse design.

Document databases, on the other hand, adopt a different approach. A document maintained in such a database would often include more than one normalized data item, as well as the connections between them. This strategy reduces the number of fetches if all the data units and relationships in question are often retrieved simultaneously. It also makes data replication easier since there is now a clearly defined unit of data with self-contained consistency. Another factor to consider is that with such databases, reading and creating a single document will need a single transaction, which might be a significant concern in a Micro-services design.

For efficiency, elements of the document are often downloaded from other services through an API and saved locally in such cases. If the data units are spread among the services, a read (or write) to serve a service consumer may need numerous service calls, resulting in the administration of many transactions, which may not be desirable.

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Weightage of this 151EC111 Course Code in their Semester

The weightage of this course is said to be 20 percent is for the assignments.

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