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Top results related to coupling meaning in software engineering terms
Top Answer
Answered May 09, 2017 · 3 votes
This generally means that it is invisible to the user. The user can use the application, and not know that a feature exists.
So, for caching to be "transparent", the application should not know that a caching layer exists. This is most easily exemplified by the opposite, in that a non-transparent caching layer would require the application invoke methods to check/expire caches.
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Top Answer
Answered Feb 19, 2013 · 1 votes
You can rely on a dictionary:
http://dictionary.reference.com/browse/systematic: having, showing, or involving a system, method, or plan
http://dictionary.reference.com/browse/disciplined: having or exhibiting discipline; rigorous
http://dictionary.reference.com/browse/quantifiable: to determine, indicate, or express the quantity of.
So, applying software engineering requires the exact execution of method that is precise with quantified steps and exact procedures regarding development, operation and maintenance of software.
or as it is state at the end:
http://dictionary.reference.com/browse/engineering: the art or science of making practical application of the knowledge of sciences, as computer science, as in the construction of software. (I changed a little bit this definition) =)
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The purpose of the Design phase in the Software Development Life Cycle is to produce a solution to a problem given in the SRS(Software Requirement Specification) document. The output of the design phase is a Software Design Document (SDD).
Coupling and Cohesion are two key concepts in software engineering that are used to measure the quality of a software system’s design.
Table of Content
- What is Coupling and Cohesion?
- Types of Coupling
- Types of Cohesion
- Advantages of low coupling
- Advantages of high cohesion
- Disadvantages of high coupling
- Disadvantages of low cohesion
- Conclusion
What is Coupling and Cohesion?
Coupling refers to the degree of interdependence between software modules. High coupling means that modules are closely connected and changes in one module may affect other modules. Low coupling means that modules are independent, and changes in one module have little impact on other modules.
Coupling
Cohesion refers to the degree to which elements within a module work together to fulfill a...
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Introduction: The purpose of the Design phase in the Software Development Life Cycle is to produce a solution to a problem given in the SRS(Software Requirement Specification) document. The output of the design phase is a Software Design Document (SDD).
Coupling and Cohesion are two key concepts in software engineering that are used to measure the quality of a software system’s design.
Coupling refers to the degree of interdependence between software modules. High coupling means that modules are closely connected and changes in one module may affect other modules. Low coupling means that modules are independent and changes in one module have little impact on other modules.
Cohesion refers to the degree to which elements within a module work together to fulfill a single, well-defined purpose. High cohesion means that elements are closely related and focused on a single purpose, while low cohesion means that elements are loosely related and serve multiple purposes.
Both coupling and cohesion are important factors in determining the maintainability, scalability, and reliability of a software system. High coupling and low cohesion can make a system difficult to change and test, while low...
- Written in simple language i.e. customer understandable language.
- Detailed explanation about system characteristics.
- Describes the functionality of the system.
- It is independent of implementation.
- Linked with requirement document.
- Hardware component and design.
- Functionality and hierarchy of software components.
- Software architecture
- Network architecture
- Data structure and flow of data.
- I/O component of the system.
- Shows interface.
- Easy to understand the system.
- System maintenance is easy.
- A module can be used many times as their requirements. No need to write it again and again.
- Data Coupling: If the dependency between the modules is based on the fact that they communicate by passing only data, then the modules are said to be data coupled. In data coupling, the components are independent of each other and communicate through data. Module communications don’t contain tramp data. Example-customer billing system.
- Stamp Coupling In stamp coupling, the complete data structure is passed from one module to another module. Therefore, it involves tramp data. It may be necessary due to efficiency factors- this choice was made by the insightful designer, not a lazy programmer.
- Control Coupling: If the modules communicate by passing control information, then they are said to be control coupled. It can be bad if parameters indicate completely different behavior and good if parameters allow factoring and reuse of functionality. Example- sort function that takes comparison function as an argument.
- External Coupling: In external coupling, the modules depend on other modules, external to the software being developed or to a particular type of hardware. Ex- protocol, external file, device format, etc.
- Common Coupling: The modules have shared data such as global data structures. The changes in global data mean tracing back to all modules which access that data to evaluate the effect of the change. So it has got disadvantages like difficulty in reusing modules, reduced ability to control data accesses, and reduced maintainability.
- Content Coupling: In a content coupling, one module can modify the data of another module, or control flow is passed from one module to the other module. This is the worst form of coupling and should be avoided.
- Temporal Coupling: Temporal coupling occurs when two modules depend on the timing or order of events, such as one module needing to execute before another. This type of coupling can result in design issues and difficulties in testing and maintenance.
- Sequential Coupling: Sequential coupling occurs when the output of one module is used as the input of another module, creating a chain or sequence of dependencies. This type of coupling can be difficult to maintain and modify.
- Communicational Coupling: Communicational coupling occurs when two or more modules share a common communication mechanism, such as a shared message queue or database. This type of coupling can lead to performance issues and difficulty in debugging.
- Functional Coupling: Functional coupling occurs when two modules depend on each other’s functionality, such as one module calling a function from another module. This type of coupling can result in tightly-coupled code that is difficult to modify and maintain.
- Data-Structured Coupling: Data-structured coupling occurs when two or more modules share a common data structure, such as a database table or data file. This type of coupling can lead to difficulty in maintaining the integrity of the data structure and can result in performance issues.
- Interaction Coupling: Interaction coupling occurs due to the methods of a class invoking methods of other classes. Like with functions, the worst form of coupling here is if methods directly access internal parts of other methods. Coupling is lowest if methods communicate directly through parameters.
- Component Coupling: Component coupling refers to the interaction between two classes where a class has variables of the other class. Three clear situations exist as to how this can happen. A class C can be component coupled with another class C1, if C has an instance variable of type C1, or C has a method whose parameter is of type C1,or if C has a method which has a local variable of type C1. It should be clear that whenever there is component coupling, there is likely to be interaction coupling.
- Functional Cohesion: Every essential element for a single computation is contained in the component. A functional cohesion performs the task and functions. It is an ideal situation.
- Sequential Cohesion: An element outputs some data that becomes the input for other element, i.e., data flow between the parts. It occurs naturally in functional programming languages.
- Communicational Cohesion: Two elements operate on the same input data or contribute towards the same output data. Example- update record in the database and send it to the printer.
- Procedural Cohesion: Elements of procedural cohesion ensure the order of execution. Actions are still weakly connected and unlikely to be reusable. Ex- calculate student GPA, print student record, calculate cumulative GPA, print cumulative GPA.
- Temporal Cohesion: The elements are related by their timing involved. A module connected with temporal cohesion all the tasks must be executed in the same time span. This cohesion contains the code for initializing all the parts of the system. Lots of different activities occur, all at unit time.
- Logical Cohesion: The elements are logically related and not functionally. Ex- A component reads inputs from tape, disk, and network. All the code for these functions is in the same component. Operations are related, but the functions are significantly different.
- Coincidental Cohesion: The elements are not related(unrelated). The elements have no conceptual relationship other than location in source code. It is accidental and the worst form of cohesion. Ex- print next line and reverse the characters of a string in a single component.
- Procedural Cohesion: This type of cohesion occurs when elements or tasks are grouped together in a module based on their sequence of execution, such as a module that performs a set of related procedures in a specific order. Procedural cohesion can be found in structured programming languages.
- Communicational Cohesion: Communicational cohesion occurs when elements or tasks are grouped together in a module based on their interactions with each other, such as a module that handles all interactions with a specific external system or module. This type of cohesion can be found in object-oriented programming languages.
- Temporal Cohesion: Temporal cohesion occurs when elements or tasks are grouped together in a module based on their timing or frequency of execution, such as a module that handles all periodic or scheduled tasks in a system. Temporal cohesion is commonly used in real-time and embedded systems.
- Informational Cohesion: Informational cohesion occurs when elements or tasks are grouped together in a module based on their relationship to a specific data structure or object, such as a module that operates on a specific data type or object. Informational cohesion is commonly used in object-oriented programming.
- Functional Cohesion: This type of cohesion occurs when all elements or tasks in a module contribute to a single well-defined function or purpose, and there is little or no coupling between the elements. Functional cohesion is considered the most desirable type of cohesion as it leads to more maintainable and reusable code.
- Layer Cohesion: Layer cohesion occurs when elements or tasks in a module are grouped together based on their level of abstraction or responsibility, such as a module that handles only low-level hardware interactions or a module that handles only high-level business logic. Layer cohesion is commonly used in large-scale software systems to organize code into manageable layers.
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The purpose of the Design phase in the Software Development Life Cycle is to produce a solution to a problem given in the SRS(Software Requirement Specification) document. The output of the design phase is a Software Design Document (SDD).
Coupling and Cohesion are two key concepts in software engineering that are used to measure the quality of a software system’s design.
Table of Content
- What is Coupling and Cohesion?
- Types of Coupling
- Types of Cohesion
- Advantages of low coupling
- Advantages of high cohesion
- Disadvantages of high coupling
- Disadvantages of low cohesion
- Conclusion
What is Coupling and Cohesion?
Coupling refers to the degree of interdependence between software modules. High coupling means that modules are closely connected and changes in one module may affect other modules. Low coupling means that modules are independent, and changes in one module have little impact on other modules.
Coupling
Cohesion refers to the degree to which elements within a module work together to fulfill a...
5/5
www.geeksforgeeks.org › software-engineeringCoupling and Cohesion - Software Engineering - GeeksforGeeks
www.geeksforgeeks.org › software-engineeringMay 3, 2024 · Coupling and Cohesion are two key concepts in software engineering that are used to measure the quality of a software system’s design. Both coupling and cohesion are important factors in determining the maintainability, scalability, and reliability of a software system.
en.wikipedia.org › wiki › Coupling_(computerCoupling (computer programming) - Wikipedia
en.wikipedia.org › wiki › Coupling_(computerIn software engineering, coupling is the degree of interdependence between software modules; a measure of how closely connected two routines or modules are; [1] the strength of the relationships between modules. [2] Coupling isn't binary but it's multi-dimensional.
medium.com › @i › difference-between-cohesionDifference Between Cohesion and Coupling (with Real ... - Medium
medium.com › @i › difference-between-cohesionJun 13, 2024 · Coupling refers to the degree of interdependence between modules. In simpler terms, it reflects how much one module relies on the internal workings of another. Loose Coupling: Modules...
stackoverflow.com › questions › 3085285Difference Between Cohesion and Coupling - Stack Overflow
stackoverflow.com › questions › 3085285Sep 30, 2021 · Cohesion is an indication of how related and focused the responsibilities of an software element are. Coupling refers to how strongly a software element is connected to other elements. The software element could be class, package, component, subsystem or a system.
thevaluable.dev › cohesion-coupling-guide-examplesCohesion and Coupling in Software with Examples
thevaluable.dev › cohesion-coupling-guide-examplesMar 27, 2022 · Cohesion and coupling are indeed two concepts which are essential in software development. They are part of these first principles we should always have in mind when we build our applications. That’s the subject of this article; more specifically, we’ll see: Where these ideas of cohesion and coupling come from.
www.crazyengineers.com › blog › cohesion-couplingWhat is cohesion and coupling in software engineering?
www.crazyengineers.com › blog › cohesion-couplingIn software engineering, cohesion refers to how closely related the functionalities within a single module are, while coupling describes the level of dependency between different modules.
People also ask
What is coupling in software engineering?
- In software engineering, coupling is the degree of interdependence between software modules; a measure of how closely connected two routines or modules are; [ 1] the strength of the relationships between modules. [ 2] Coupling isn't binary but it's multi-dimensional. [ 3] Coupling is usually contrasted with cohesion.
Coupling (computer programming) - Wikipedia
en.wikipedia.org/wiki/Coupling_(computer_programming)What is cohesion & coupling in software engineering?
- Cohesion and coupling are the yin and yang of software engineering; they work together to achieve a balanced, efficient design. Cohesion refers to the degree to which the elements inside a module belong together. In simpler words, it is the measure of how closely related the responsibilities of a single module are.
What is cohesion and coupling in software engineering?
www.crazyengineers.com/blog/cohesion-coupling-software-engineeringWhat does coupling mean?
- Cohesion simply is another name for "single responsibility" or "separation of concerns". The term coupling on the hand is quite intuitive which means when a module doesn't depend on too many other modules and those that it connects with can be easily replaced for example obeying liskov substitution principle .
Difference Between Cohesion and Coupling - Stack Overflow
stackoverflow.com/questions/3085285/difference-between-cohesion-and-couplingWhat does coupling a module mean?
- The term coupling on the hand is quite intuitive which means when a module doesn't depend on too many other modules and those that it connects with can be easily replaced for example obeying liskov substitution principle . Why do people keep using the word module instead of class?
Difference Between Cohesion and Coupling - Stack Overflow
stackoverflow.com/questions/3085285/difference-between-cohesion-and-couplingwww.scaler.com › topics › cohesion-and-coupling-inCoupling and Cohesion in Software Engineering - Scaler
www.scaler.com › topics › cohesion-and-coupling-inIn software engineering, coupling and cohesion shape modularization, the art of creating manageable and efficient software components. Coupling defines the interdependence of modules, while cohesion measures the unity of components.
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