Computer Science Engineering (CSE) Exam  >  Computer Science Engineering (CSE) Notes  >  Chapter - Software Design, PPT, BSAD, Semester, Engineering

Chapter - Software Design, PPT, BSAD, Semester, Engineering - Computer Science Engineering (CSE) PDF Download

SOFTWARE DESIGN

Structure Charts:

–Software Structure Specification

Chapter - Software Design, PPT, BSAD, Semester, Engineering - Computer Science Engineering (CSE)

 

 

 

 

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  Program Structure Charts:

Chapter - Software Design, PPT, BSAD, Semester, Engineering - Computer Science Engineering (CSE)

 

 

 

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Control starts at root module and is passed down level by level. Control is always returned to the calling module. At the end of program execution, control returns to root module

 

 

 

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DFD to Structure Chart :

•Transform Analysis

    Identify the central transform in a DFD

      – divide processes into those that perform input  and editing, processing or transformation and those performing output.

•Transaction Analysis

     Identify the Transaction Center

     Group of processes between I/Ps and O/Ps

         With Alternative flows of control depending on   condition / user selection

            – Each DFD process appears as a structure chart module(?)

            – Additional modules provide details of processing

 

 

 

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Transform Analysis  (Example)

Chapter - Software Design, PPT, BSAD, Semester, Engineering - Computer Science Engineering (CSE)

 

 

 

 

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Chapter - Software Design, PPT, BSAD, Semester, Engineering - Computer Science Engineering (CSE)

 

 

 

 

Software Design Concept --------------------------Next Slide --------------------------

 

 

 

 

Chapter - Software Design, PPT, BSAD, Semester, Engineering - Computer Science Engineering (CSE)

 

 

 

 

Software Design Concept --------------------------Next Slide --------------------------

 

 

 

 

Chapter - Software Design, PPT, BSAD, Semester, Engineering - Computer Science Engineering (CSE)

 

 

 

 

Software Design Concept --------------------------Next Slide --------------------------

 

 

 

 

Chapter - Software Design, PPT, BSAD, Semester, Engineering - Computer Science Engineering (CSE)

 

 

 

 

Software Design Concept --------------------------Next Slide --------------------------

 

 

 

 

Transaction Analysis  (Example)

Chapter - Software Design, PPT, BSAD, Semester, Engineering - Computer Science Engineering (CSE)

 

 

 

 

Software Design Concept --------------------------Next Slide --------------------------

 

 

 

 

Chapter - Software Design, PPT, BSAD, Semester, Engineering - Computer Science Engineering (CSE)

 

 

 

 

Software Design Concept --------------------------Next Slide --------------------------

 

 

 

 

Chapter - Software Design, PPT, BSAD, Semester, Engineering - Computer Science Engineering (CSE)

 

 

 

 

Software Design Concept --------------------------Next Slide --------------------------

 

 

 

 

Chapter - Software Design, PPT, BSAD, Semester, Engineering - Computer Science Engineering (CSE)

 

 

 

 

Software Design Concept --------------------------Next Slide --------------------------

 

 

 

 

Chapter - Software Design, PPT, BSAD, Semester, Engineering - Computer Science Engineering (CSE)

 

 

 

 

Software Design Concept --------------------------Next Slide --------------------------

 

 

 

 

Chapter - Software Design, PPT, BSAD, Semester, Engineering - Computer Science Engineering (CSE)

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FAQs on Chapter - Software Design, PPT, BSAD, Semester, Engineering - Computer Science Engineering (CSE)

1. What is software design?
Ans. Software design is the process of creating a plan or blueprint for the construction of a software system. It involves identifying the requirements, defining the architecture, and specifying the components and their interactions to meet those requirements.
2. Why is software design important?
Ans. Software design is important because it helps in creating a reliable and efficient software system. It ensures that the system meets the user's requirements and is scalable, maintainable, and reusable. Good software design reduces the chances of errors and makes the software easier to understand, modify, and test.
3. What are the key principles of software design?
Ans. The key principles of software design include modularity, abstraction, encapsulation, cohesion, and loose coupling. Modularity promotes the separation of concerns and allows for easier maintenance and reusability. Abstraction helps in hiding complex details and provides a simplified view of the system. Encapsulation protects the internal details of a component and exposes only the necessary interfaces. Cohesion ensures that each component has a single, well-defined responsibility. Loose coupling reduces dependencies between components and promotes flexibility and extensibility.
4. What are the different levels of software design?
Ans. Software design can be categorized into three levels: architectural design, high-level design, and detailed design. Architectural design focuses on defining the overall structure of the system, including the major components and their interactions. High-level design elaborates on the architectural design and defines the modules, interfaces, and data structures. Detailed design further specifies the internal structure of each module, including algorithms, data formats, and control flow.
5. What are some popular software design patterns?
Ans. Some popular software design patterns include the Singleton pattern, Factory pattern, Observer pattern, and Model-View-Controller (MVC) pattern. The Singleton pattern ensures that only one instance of a class is created and provides a global point of access to it. The Factory pattern provides an interface for creating objects, allowing the subclasses to decide which class to instantiate. The Observer pattern establishes a one-to-many relationship between objects, where changes in one object are automatically reflected in other dependent objects. The MVC pattern separates the presentation, logic, and data layers of an application, promoting modularity and maintainability.
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