ADVANCED SOFTWARE ENGINEERING
ADVANCED SOFTWARE ENGINEERING

Unified Modeling Language (UML)

Unified Modeling Language (UML) is a general-purpose modelling language. A major goal of UML is to define a standard way to visualize how systems are designed. It is very similar to drawings used in other areas of technology.

UML is more of a visual language than a programming language. UML diagrams are used to show the behavior and structure of the system. UML supports software engineers, business people, and system architects in modeling, design, and analysis. The Object Management Group (OMG) adopted the Unified Modeling Language as a standard in 1997. Since then, it has been operated by OMG. The International Organization for Standardization (ISO) published UML as an approved standard in 2005. UML has been revised over the years and is periodically revised.

Structures

  1. Modular design.
  2. Object-oriented programming (OOP).
  3. Design patterns.
  4. Data structures.
  5. Algorithms.
  6. Testing frameworks.
  7. Version control systems.

Modeling Classes

modeling classes is an important aspect of the design process. Modeling classes involves creating a blueprint of the various classes that will be used in the software system, along with their attributes, methods, and relationships with other classes. This is typically done using Unified Modeling Language (UML), a graphical language used for visualizing, specifying, constructing, and documenting the artifacts of software systems.

There are several approaches to modeling classes in advanced software engineering. One popular approach is to use a domain-driven design (DDD) approach, which involves modeling classes based on the domain or problem space of the software system. This approach involves identifying domain objects and their properties, as well as their relationships and behaviors, and then mapping these to classes in the software system.

Common Modeling Techniques

Advanced software engineering involves a wide range of modeling techniques that can be used to develop and design software systems. Here are some of the most common modeling techniques used in advanced software engineering:

  1. UML (Unified Modeling Language).
  2. BPMN (Business Process Model and Notation).
  3. ERD (Entity Relationship Diagram).
  4. DFD (Data Flow Diagram).
  5. Statechart Diagram.
  6. Activity Diagram.
  7. Use Case Diagram.

Relationships

relationships play an important role in designing and implementing software systems. There are several types of relationships that are commonly used in software engineering:

  1. Inheritance.
  2. Composition.
  3. Aggregation.
  4. Association.
  5. Dependency.

Common Mechanism

There are several common mechanisms in advanced software engineering that are used to improve the quality, reliability, and maintainability of software systems. Here are some most important mechanisms:

  1. Object-oriented programming.
  2. Design patterns.
  3. Agile methodologies.
  4. Continuous integration and deployment.
  5. Version control.
  6. Testing frameworks.
  7. Continuous monitoring.

Class Diagrams

Class diagrams are a crucial aspect of advanced software engineering as they help developers to design and document the structure of software systems. Class diagrams provide a visual representation of the classes, interfaces, and relationships between them, enabling developers to model the system’s structure and behavior.

Class diagrams are particularly useful in advanced software engineering when dealing with complex systems, as they provide a clear overview of the system’s structure, helping developers to identify potential issues and design solutions. They are also used to help manage the development process by providing a common language for developers, testers, and stakeholders to communicate about the system’s design and functionality.

ASM

Advanced structured modeling (ASM) is a software engineering methodology that involves the use of formal modeling techniques to create software systems. It is a rigorous and disciplined approach to software development that helps to ensure that software systems are correct, reliable, and maintainable. ASM is based on the idea that software systems can be modeled using mathematical techniques, and that these models can be used to verify that the software meets its specifications.

Advanced Classes and Relationships

  1. Abstract classes.
  2. Interface classes.
  3. Singleton classes.
  4. Factory classes.
  5. Dependency Injection.
  6. Inheritance.
  7. Composition.
  8. Association.
  9. Aggregation.
  10. Dependency.

Interfaces

In advanced software engineering, interfaces play a crucial role in designing and developing software systems. An interface can be defined as a contract between two or more components that specifies how they will interact with each other. It provides a well-defined set of methods and properties that can be used by other components to access the functionality provided by the interface.

Types and Roles

Advanced software engineering involves several types and places that contribute to the development of complex software systems. Then are some of the most common types and roles

  1. Software Architect.
  2. Software Developer.
  3. Quality Assurance Engineer.
  4. DevOps Engineer.
  5. Database Administrator.
  6. User Interface Designer.
  7. Technical Writer.

Instances

an case refers to a specific circumstance or circumstance of an object in a particular state. An case is created from a class, which defines the parcels and geste of the object. For illustration, if you have a class called” Person” with parcels similar as name, age, and gender, an case of this class would be a specific person with a specific name, age, and gender.

Object diagram

An object diagram is a graphical representation of a set of cases, showing how they relate to each other. It’s a type of structural illustration that shows the objects in a system and the connections between them. Object plates are frequently used to illustrate the design of a software system or to dissect the structure of an being system.

Behavioral Modeling 

Behavioral modeling in software engineering is the process of representing the behavior of a software system using various modeling techniques. It involves creating models that describe the behavior of a software system in terms of its functionality, interactions, and other relevant aspects.

The main idea behind behavioral modeling is to capture the dynamic behavior of the software system in order to understand its functionality, detect errors, and make necessary changes or improvements. This can be done using various modeling techniques such as use case diagrams, activity diagrams, sequence diagrams, state diagrams, and others.

Oriented Concepts and Principles

Oriented concepts and principles are essential to software engineering because they help developers create software that is easy to understand, maintain, and extend. Some of the most important oriented concepts and principles in software engineering are:

  1. Object-oriented programming (OOP).
  2. Abstraction.
  3. Encapsulation.
  4. Inheritance.
  5. Polymorphism.

Object Model Elements Identified

an object model is a conceptual model that represents the objects, their properties, relationships, and behavior within a system. Here are the elements of an object model that are typically identified in advanced software engineering.

  1. Object.
  2. Class.
  3. Attribute.
  4. Method.
  5. Inheritance.

Object Oriented Analysis and Design

Object Oriented Analysis (OOA). Object-oriented analysis (OOA) is the first technical activity performed as part of object-oriented software development. OOA introduces a new concept for problem study. It is based on several basic principles:

Information areas are modeled.
representative action.
Features are described.
Data, functional and behavioral models are separated to reveal more detailed information.
The initial model captures the essence of the problem and later models provide implementation details.

Object-Oriented Design (OOD): An analysis model created using object-oriented analysis is transformed by object-oriented design into a design model that works as a plan for software creation. OOD results in a design having several different levels of modularity i.e., The major system components are partitioned into subsystems (a system-level “modular”), and data manipulation operations are encapsulated into objects (a modular form that is the building block of an OO system.). In addition, OOD must specify some data organization of attributes and a procedural description of each operation. Shows a design pyramid for object-oriented systems.

Object Oriented System

We know that Object Oriented Modeling (OOM) uses models organized around objects to visualize things in an application. Any approach to software development goes through these steps:

  • analyze, design and avatar.

In object-oriented software development, software developers identify and construct applications in terms of object-oriented concepts before final presentation in a particular programming language or software tool.

The system design process

The system design process in software engineering is an important phase that involves creating a detailed plan or design of how a software system will be erected. The process generally involves the following way:

  1. Requirements gathering.
  2. Architectural design.
  3. Detailed design.
  4. Implementation.
  5. Testing.
  6. Deployment.
  7. Maintenance.

Object-oriented testing

Object-oriented testing is a type of testing that focuses on verifying the correctness and reliability of object-oriented software. Object-oriented testing involves testing the OOA (Object-Oriented Analysis) and OOD (Object-Oriented Design) models used in software engineering.

OOA testing

OOA (Object-Oriented Analysis) is a key aspect of software engineering that involves the identification and modeling of the various objects and processes that exist within a system. Testing OOA is important to ensure that the identified objects and processes are correctly modeled and that the system functions as intended.

OOD Testing

Out-of-distribution (OOD) testing in software engineering refers to the process of testing a software system with data that is outside of the distribution of the data that was used to train or test the system. The goal of OOD testing is to identify and mitigate the risks of the system failing when it encounters new, unseen data in the production environment.

Software Testing Strategies

Software testing is a type of study that identifies bugs or bugs in software so that the number of bugs can be reduced or eliminated in order to improve the quality of the software and ensure that it meets given requirements.

According to Glen Myers, the goals of software testing are:

  • The process of examining and testing a program to see if it has bugs or not and whether it meets the requirements is called testing.
  • A high number of bugs found during testing indicates good testing and is a sign of a good test case.
  • Finding unknown bugs that haven’t been discovered yet is a sign of successful and good testing.

Inter class testing

Inter-class testing is a type of software testing that focuses on testing the interaction between different classes or components of a software system. It is also known as integration testing, as it involves integrating different units or modules of the system and testing them as a whole.

The primary objective of inter-class testing is to ensure that the different modules or classes of the software system work together seamlessly and produce the desired output. This testing approach can help to identify any defects or bugs that may arise due to the interaction between different modules or classes.

Technical metrics for O-O systems

technical metrics that can be used to measure the quality of Object-Oriented (O-O) systems in software engineering. Some of the commonly used metrics are:

  1. Coupling.
  2. Cohesion.
  3. Inheritance depth.
  4. Method complexity.
  5. Class size.
  6. Number of methods.
  7. Method coupling.
  8. Method inheritance.

Class oriented metrics

Class oriented metrics are used to evaluate the quality and complexity of software code at the class or module level. These metrics can be used to measure the size, complexity, cohesion, coupling, and maintainability of individual classes within a software system. Here are some commonly used class oriented metrics in software engineering:

  1. Size Metrics.
  2. Complexity Metrics.
  3. Cohesion Metrics.
  4. Coupling Metrics.
  5. Maintainability Metrics.

Metrics for O-O projects

Object-Oriented (O-O) projects in software engineering require specific metrics to measure their effectiveness, quality, and performance. Some of the common metrics for O-O projects are:

  1. Class Size.
  2. Coupling.
  3. Cohesion.
  4. Inheritance Depth.
  5. Cyclomatic Complexity.
  6. Code Coverage.
  7. Maintainability Index.
  8. Reusability.

Advanced topics in software engineering

  1. DevOps.
  2. Cloud Computing.
  3. Microservices.
  4. Artificial Intelligence and Machine Learning.
  5. Blockchain.
  6. Reactive Programming.
  7. Cybersecurity.
  8. Big Data.
  9. Containers and Virtualization.
  10. Software Testing.

Component Based Software Engineering

Component-Based Software Development (CBSE) is a process focused on the design and development of computer systems using reusable software components.

It not only identifies candidate components, but also validates the interfaces of each component, tunes components to resolve architectural mismatches, assembles components into the selected architectural style, and updates components to meet system change requirements.