Three-schema Architecture - How To Discuss

Three-schema Architecture

A data access control framework that includes three levels or schemas: an external or programming view, a conceptual or data management view, and an internal or database management view. Such ideas were developed in 1971 by the US National Standards Institute/Scalable Processor Architecture Subcommittee, but have not been implemented in practice by database management systems (DBMS) vendors. The principle is that a conceptual schema consists of business rules derived from a semantic data model that ensures independence between programs and data structures. Meanwhile, the focus has shifted to computer-aided software engineering (CASE) tools and repository standards.

Literal Meanings of Three-schema Architecture

Three:

Meanings of Three:

1. Number/number 3.

2. Anything three units long.

3. Three year old boy.

4. Playing cards with three points.

5. Numeric value after two and before four. Indicated by Arabic numerals 3 by the number of points (•••).

6. Describes a collection or group of three elements.

7. A goal or other goal worth three points.

8. A three-point field goal scored from behind the three-point line.

9. A three-point landing is the landing of an aircraft where all three wheels touch the ground at the same time.

10. Deer or other animals that have three teeth on their antlers.

Sentences of Three

1. Place all three in a separate container.

2. The three of them go to Mrs. Smith's class, and I go to fourth and fifth.

Schema:

Meanings of Schema:

1. Scheme or image usually applicable to the general design by which it can be represented in the mind (e.g. a body diagram).

2. Formal description of the database structure: table names, column names of each table, data type and other attributes of each column.

3. (Markup languages) Formal description of data, data types and file data structures, e.g. B. XML schemas for XML files.

4. A formula in the metalanguage of an axiomatic system that contains one or more schema variables that represent a concept or sub-formula of the system that may or may not be necessary to satisfy certain conditions.

5. Monk clothes in the Greek Orthodox Church.

Architecture:

Meanings of Architecture:

1. The art and science of designing and managing the construction of buildings and other structures, especially when they are properly proportioned and decorated.

2. Architect by profession.

3. A special style of building design.

4. Construction, more commonly frame or frame.

5. Connection structure.

6. A specific processor chip or model.

7. The structure and design of a system or product.

Sentences of Architecture

1. Architecture is the visual public expression of a culture's achievements, values ​​and beliefs. ― Max Roscoe, how your city is you with its ugliness.

2. More software has been written for Intel architectures.

3. The architecture of a company's billing system is designed to support its business objectives.