A data model is a collection of conceptual tools for describing A Data and data relationiships B Data semantics and consistency constraints C Data, data relationship, data semantics and consistency constraints D Encryption and decryption

Q: b. Transform the given ternary relationship into relational model. Answer: MEDICINE MedicineName…

A: Relational Model: The model creates databases with related relations to gather and store…

Q: Distinguish between a relationship and anassociative entity, and use associative entitiesin a data…

A: M: N relationships may have associative entities OR single associative attributes that characterize…

Q: Explain the distinction between disjoint and overlapping constraints.

A: In the disjoint, the user can only put the constraint in only one class. In the overlapping, the…

Q: Discuss the transition of Unnormalizated data to FNF.

A: *As per guidelines, only 1st question is answered. For other questions, please post separate…

Q: Explain the purpose of a Logical Data Model.

A: The problem is based on the models of database management system.

Q: Contrast the terms data dependence; data independence

A: Data dependence; data independence.

Q: uct a context and data flow diagram level-0 supporting the logical design/implementation of the…

A: Lets see the solution.

Q: Describe a scenario in which a static data structure might be beneficial. A dynamic data structure…

A: Introduction Static data: Static data structures (SDS) are different from dynamic data structures…

Q: The following are the advantages of data modeling:

A: Given To know about the advantages of data modeling.

Q: is a data model building block that defines how data are kept correct and consistent. Structures…

A: The schema always say the conceptual level, which deal with the correct and consistent data. So the…

Q: Data description language is a notation for specifying the shape and organisation of data

A: Answer:

Q: What the major differences are between object oriented programming and object oriented data model.

A: Differences: 1) Object oriented programming (OOP) is a computer programming model that organized…

Q: Example of requirement for Traceability Matrix?

A: First of let's talk about the Traceability Matrix: A Traceability Matrix is a document that…

Q: How the levels of abstractions apply their impact in defining the structure/schema of data,…

A: Case Study: Complex data structures are present in database systems. Developers utilize the Data…

Q: l contrasts between the conceptual and lo

A: Fundamental contrasts between the conceptual and logical data models.

Q: The following are the objectives for the design of the logical schema:

A: Intro According to the question, a Logical schema is developed using diagrams that define the…

Q: What is the connection between the autorelationship and the rest of all types of relationships in…

A: the answer is given below:-

Q: The application of database management system in air flight seat booking in a way that one seat is…

A: Please find the answer to the above question below:

Q: Describe the special features of a data modeling project when using a packaged data model

A: It is predefined data models. It could be universal or industry-specific. It is Universal data model…

Q: It is often argued that weak consistency models

A: Given :- In the above given question, a statement is mention in the above given question    Need to…

Q: Describe the most common way in which relationships in an E-R diagram are expresses in a…

A: ER  diagram ER  diagram is defined as the interconnection of entities and attributes how they are…

Q: Under what conditions does a data object not exist in a data model?

A: the answer is given below:-

Q: Discuss each of the following concepts in the context of the relational data model: (a) relation (b)…

A: Relational Data Model The logical data structures—the data tables, views, and indexes—are different…

Q: The model for a _____ resembles the hierarchical model in many respects. a. Network database b.…

A: Required: The model for a _____ resembles the hierarchical model in many respects. a. Network…

Q: a ->f ab -> cd C->e de -> b bf -> ae a) Identify the weakest normal form that each of these…

A: A)  Primary key is ab.  The functional dependency a->f is a partial functional dependency. It…

Q: The form of data model which focuses the concepts in the same way as the data stored in computer…

A: Data Models are fundamental entities to introduce abstraction in a DBMS. Data models define how data…

Q: Logical data modeling depicts the organization of data and its interrelationships without concern…

A: Data models are those models that form the foundation for an organization's project planning. Data…

Q: What what is an ADT, and how does it perform its functions? Are there any potential drawbacks…

A: Abstract Data Type: The abstract data type (ADT) is a mathematical construct that may be used to…

Q: State six general guidelines for naming data objects in a data model.

A: General guidelines for data name in data modellingData modelling:Data modelling is the process to…

Q: Do structural database testing and other testing methods vary in terms of what they are used for?

A: These are the often posed questions: During database testing interviews. The database's structure,…

Q: A data-structure is defined as the logical organisation of data. What kind of data structures are…

A: Answer: There are two types of data structure. Linear Data Structure Non-Linear Data Structure…

Q: The term-- describes a whole-part relationship in which the components can exist separately. Select…

A: Note: This is a multiple-question-based problem. As per company guidelines, only the first question…

Q: Why is it not advisable to add a data object to a data model if doing so is not something that…

A: Given: An abstract model known as a data model (or datamodel) combines informational components and…

Q: Does structural independence differ from data independence?

A: Yes, there exist a difference between both the terms , let's discuss what are they.

Q: What what is an ADT, and how does it perform its functions? Are there any potential drawbacks…

A: In computer science, an abstract data type (ADT) is a mathematical model for data types. An abstract…

Q: Discuss the classification of traceability relations; elicit a brief example that describes the…

A: Introduction: Traceability relations are defined as the degree to which a relationship can be…

Q: In a three-schema design, the exterior, internal, and conceptual levels are all strictly segregated,…

A: The external level or programming level, the internal level or database administration level, and…

Q: What distinguishes structural from data independence

A: Introduction When alterations to the database structure have no impact on DBMS's capacity to access…

Q: 1. Elaborate on FIVE (5) primary goals of data modelling in software design.

A: As per Bartleby guidelines “Since you have asked multiple questions, we will solve the first…

Q: The three main constructs of the entity-relationship modeling notation include each of the following…

A: The three main construct of ER modeling are attributes,entity and relationship..with all the three…

Q: Why normalized relations may not be a hindrance to an effective physical implementation structure in…

A: The relations may not be a hindrance to an effective physical implementation structure in computer…

Q: Distinguish between deadlock and data coherence problem.

A: Deadlock occurs when each process holds a resource and wait for other resource held by any other…

Q: How does the Structural independence differ from the Data independence?

A: To discuss about the difference between structural and data independence.

Q: If the different versions of the same data appear in many places, then this may cause Structural…

A: This question is a MCQ type question, in which a statement is given and we have to choose the…

Enhanced ER Model

The enhanced ER model is an abbreviation for Enhanced Entity-Relationship (EER) model. As you know, the entity-relationship (ER) model is a pictorial illustration of the relationship between various entities of a domain. In the case of a large amount of data with multiple interrelated entities, the ER diagrams become complex and tough to interpret. For such cases, the need for enhancement in the ER model was observed, and thus, the EER model was designed.