Chapter 6 CEN 4010 Questions And Answers Rated 100% Correct!!
6 views 0 purchase
Module
CEN 4010
Institution
CEN 4010
Control Coupling - ️️• When one module passes parameters or a return code to
control the behavior of another module
• It is impossible for the controlled module to function without some direction from the
controlling module
Types of Coupling - ️️• Content coupling
• Common coup...
Chapter 6 CEN 4010
Control Coupling - ✔️✔️• When one module passes parameters or a return code to
control the behavior of another module
• It is impossible for the controlled module to function without some direction from the
controlling module
Types of Coupling - ✔️✔️• Content coupling
• Common coupling
• Control coupling
• Stamp coupling
• Data coupling
Design Principles - ✔️✔️are guidelines for decomposing a system's required
functionality and behavior into modules
6 Common Design Principles - ✔️✔️- Modularity
- Interfaces
- Information hiding
- Incremental development
- Abstraction
- Generality
Modularity - Design Principle - ✔️✔️is the principle of keeping separate the various
unrelated
aspects of a system, so that each aspect can be studied in isolation (also called
separation of concerns)
Tightly coupled - ✔️✔️they depend a great deal on each other
Loosely coupled - ✔️✔️modules have some dependence, but their interconnections
are weak
Uncoupled - ✔️✔️modules have no interconnections at all; they are completely
unrelated
Refactoring - ✔️✔️• Design decisions are periodically revisited and revised
• Objective: to simplify complicated solutions or to optimize the design
• Also used to address changing requirements
Ways modules are dependent on each other - ✔️✔️- The references made from one
module to another
- The amount of data passed from one module to another
, - The amount of control that one module has over the other
Content Coupling - ✔️✔️Occurs when one component modifies an internal data item in
another component, or when one component branches into
the middle of another component
Common Coupling - ✔️✔️Making a change to the common data means tracing back to
all components that access those data to evaluate the effect of
the change
Stamp Coupling - ✔️✔️occurs when complex data structures are passed between
modules
- represents a more complex interface between modules, because the modules have to
agree on the data's format and organization
Data Coupling - ✔️✔️If only data values, and not structured data, are passed
- simpler and less likely to be affected by changes in data representation
Cohesion - ✔️✔️refers to the dependence within and among a module's internal
elements (e.g., data, functions, internal modules)
Coincidental Cohesion - ✔️✔️(worst degree)
- Parts are unrelated to one another
Logical Cohesion - ✔️✔️Parts are related only by the logic structure of code
Temporal Cohesion - ✔️✔️Module's data and functions related because they are used
at the same time in an execution
Procedural Cohesion - ✔️✔️Similar to temporal, and functions pertain to some related
action or purpose
Communication Cohesion - ✔️✔️Operates on the same data set
Function Cohesion - ✔️✔️(ideal degree)
- All elements essential to a single function are contained in one module, and all of the
elements are essential to the performance of the function
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller ACADEMICMATERIALS. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £6.69. You're not tied to anything after your purchase.
