Software Engineering Concepts
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Questions and Answers

Which of the following is NOT a characteristic of software engineering in an industrial setting?

  • Development of small-sized software products (correct)
  • Large teams of developers
  • Software maintenance and modifications over long periods
  • Focus on business applications
  • What is a key difference between software and a physical product like a building?

  • Software can be replicated easily and inexpensively.
  • Software is subject to wear and tear over time. (correct)
  • Software can be easily modified and updated.
  • Software is designed with strict limitations based on physical laws.
  • Why is it difficult to ensure a defect-free software product?

  • Software is subject to limitations of physical materials.
  • Software is inherently simple and easily understood.
  • Software development teams are typically small and lack expertise.
  • Software is constantly evolving and changing, making testing difficult. (correct)
  • What is a common challenge in software development due to interdependencies between components?

    <p>Difficulty in understanding the overall system design. (B)</p> Signup and view all the answers

    What is a key difference between the digital and analog modes of operation?

    <p>A tiny input change in a digital system can drastically alter the output. (D)</p> Signup and view all the answers

    What is a potential drawback of the ease of modification in software?

    <p>It can make it difficult to track changes and maintain code consistency. (C)</p> Signup and view all the answers

    What is the main reason why a software product is often shelved after completion in a non-industrial setting?

    <p>The focus is on learning and experimentation, not on producing marketable products. (A)</p> Signup and view all the answers

    Which of the following is NOT a characteristic of software development in a non-industrial setting?

    <p>Software is typically developed for real-world customer needs. (C)</p> Signup and view all the answers

    Which type of maintenance involves modifying software to handle changes in its environment, such as a new database system or web browser?

    <p>Adaptive maintenance (A)</p> Signup and view all the answers

    What is the primary goal of refactoring?

    <p>To make the code more understandable and easier to modify in the future. (A)</p> Signup and view all the answers

    Which maintenance type is concerned with changes intended to address potential issues before they become problems?

    <p>Preventive maintenance (D)</p> Signup and view all the answers

    Which of the following best describes the purpose of restructuring in software maintenance?

    <p>Changing the software's architecture and high-level interfaces. (D)</p> Signup and view all the answers

    What is a typical negative consequence of long-term software maintenance?

    <p>Degradation of code structure and understandability (B)</p> Signup and view all the answers

    What is the primary goal of software testing?

    <p>To detect bugs, errors, and failures. (B)</p> Signup and view all the answers

    Which of the following is NOT typically considered a part of the coding phase?

    <p>Deployment planning. (D)</p> Signup and view all the answers

    What is the 'Pesticide Paradox' in software testing?

    <p>The concept that repeatedly running the same tests will eventually stop finding new bugs. (A)</p> Signup and view all the answers

    In software development, what distinguishes a 'failure' from an 'error'?

    <p>A failure is noticeable to users, while an error might not be. (C)</p> Signup and view all the answers

    What does the term 'go-live' refer to?

    <p>The point at which the system starts being used by the customer. (A)</p> Signup and view all the answers

    Which of the following best describes 'customization' during IT system deployment?

    <p>Tailoring the software to the customer's specific needs. (D)</p> Signup and view all the answers

    What is the primary purpose of 'regression testing'?

    <p>To ensure that new changes or fixes don't introduce other defects. (B)</p> Signup and view all the answers

    Priorities in software development, such as performance vs portability, are typically derived from:

    <p>The stakeholders requirements. (A)</p> Signup and view all the answers

    Which aspect is NOT considered when determining user specifics for a system?

    <p>Type of operating system used (B)</p> Signup and view all the answers

    What is the primary purpose of business analysis in the context of an IT system?

    <p>To provide an understanding of the business problem and identify IT system requirements (B)</p> Signup and view all the answers

    What is considered a quality (non-functional) requirement of a system?

    <p>The expected number of concurrent users (C)</p> Signup and view all the answers

    Which of the following is NOT included in a vision document's structure?

    <p>Marketing strategies (B)</p> Signup and view all the answers

    Which of the following is a constraint imposed on the supplier of an IT system?

    <p>The budget for the project (B)</p> Signup and view all the answers

    Which stakeholder group is primarily focused on the end-user experience of an IT system?

    <p>Future users (D)</p> Signup and view all the answers

    Which of these is an example of a quality requirement focused on system reliability?

    <p>Failure-free operation for a specified period (D)</p> Signup and view all the answers

    What is the primary focus of business analysis within software engineering?

    <p>Comprehending and identifying business problems and goals (B)</p> Signup and view all the answers

    What type of information is crucial to include in the description of the customer organization?

    <p>Quantitative data such as number of employees and main business processes (C)</p> Signup and view all the answers

    What does security in the context of system requirements encompass?

    <p>Protecting the system from unauthorized access (A)</p> Signup and view all the answers

    Which is an essential factor when determining the training needs for users?

    <p>The existing skills of the users (B)</p> Signup and view all the answers

    What is a common expectation from bank customers regarding the new IT system?

    <p>Direct fund transfers via Internet banking (D)</p> Signup and view all the answers

    Which of the following best describes requirements engineering?

    <p>The core process of capturing and managing system requirements (D)</p> Signup and view all the answers

    What does portability in system requirements refer to?

    <p>The ability to function on multiple devices and platforms (D)</p> Signup and view all the answers

    What is a critical element in ensuring that software meets quality standards?

    <p>Expressing requirements in a verifiable and measurable way (D)</p> Signup and view all the answers

    In the context of stakeholders, which group is focused on maintaining compliance with regulations?

    <p>Laws and regulations (D)</p> Signup and view all the answers

    Which statement about flexibility in a system is true?

    <p>The system should allow easy expansion of functionality. (A)</p> Signup and view all the answers

    What does the logical architecture of a system describe?

    <p>The decomposition of the system into layers and subsystems (A)</p> Signup and view all the answers

    What is typically NOT a factor to consider when identifying problems for an organization in need of an IT system?

    <p>Potential market trends (D)</p> Signup and view all the answers

    Which of the following is NOT an activity of requirements engineering?

    <p>User interface testing (B)</p> Signup and view all the answers

    Which aspect is essential to the organizational structure in understanding the customer organization?

    <p>Division of responsibilities within the organization (B)</p> Signup and view all the answers

    Which principle emphasizes that classes should have one reason to change?

    <p>Single Responsibility Principle (C)</p> Signup and view all the answers

    What is the aim of system analysis within the context of software engineering?

    <p>To capture and manage system requirements (B)</p> Signup and view all the answers

    Which of the following constraints might be imposed on the design of a software product?

    <p>Adherence to the customer's technology policy for the data layer (B)</p> Signup and view all the answers

    What is the main purpose of identifying stakeholders in the development of an IT system?

    <p>To understand potential sources of requirements for the system. (B)</p> Signup and view all the answers

    Which of the following best describes the primary goal of a vision document in IT system development?

    <p>To outline a preliminary understanding of the business problem and the system's scope. (B)</p> Signup and view all the answers

    A user who is highly concerned with preventing unauthorized access to financial data is most directly expressing a viewpoint related to which aspect of system context?

    <p>Domain knowledge and regulations (A)</p> Signup and view all the answers

    When assessing user specifics for a new system, what indicates the nature of training needed?

    <p>The user's prior experience with similar IT systems (C)</p> Signup and view all the answers

    According to the provided text, which of these is NOT a typical area of focus when describing a customer organization?

    <p>Current market trends in the organization's industry. (C)</p> Signup and view all the answers

    Which of the following best describes 'scope of cooperation' when considering external cooperating systems?

    <p>The degree of interaction and shared functions between systems (A)</p> Signup and view all the answers

    Which of the following is the most accurate description of a 'stakeholder' in the context of IT system development?

    <p>A party interested in the system with a justifiable right to influence it. (C)</p> Signup and view all the answers

    A system's requirement to handle a large number of concurrent users simultaneously is best categorized as a:

    <p>Performance requirement (A)</p> Signup and view all the answers

    What is the primary reason for a bank customer to expect an improvement in the transaction process after the introduction of an IT system?

    <p>Because the system should reduce time spent at the counters and allow standard operations via internet. (A)</p> Signup and view all the answers

    Which of the following represents a system's reliability requirement?

    <p>The system should operate without failure for 99.99% of the time (D)</p> Signup and view all the answers

    What is the primary purpose of describing a system's context in the vision document?

    <p>To identify the future users and collaborating systems. (A)</p> Signup and view all the answers

    Which of the following is NOT a type of stakeholder, according to the text?

    <p>The system's developers. (A)</p> Signup and view all the answers

    What does the security requirement for a system primarily address?

    <p>The system’s protection against malicious attacks (D)</p> Signup and view all the answers

    What is the key purpose of a 'business analysis' in the context of IT system development?

    <p>To identify and describe the requirements for the planned IT system. (D)</p> Signup and view all the answers

    If a system is expected to operate effectively on mobile devices, different operating systems, and browsers, this requirement relates to:

    <p>Portability (B)</p> Signup and view all the answers

    A requirement that the system should be easy to expand by adding new features is best described by what quality?

    <p>Flexibility (B)</p> Signup and view all the answers

    Which type of software maintenance involves modifying the system to function correctly after a newly discovered bug is found?

    <p>Corrective maintenance (B)</p> Signup and view all the answers

    What distinguishes refactoring from restructuring in software maintenance?

    <p>Refactoring modifies the internal code structure without changing behavior, while restructuring involves higher-level architectural changes. (B)</p> Signup and view all the answers

    Which activity is primarily concerned with improving the understandability and modifiability of code without altering its external behavior?

    <p>Refactoring (C)</p> Signup and view all the answers

    What is the potential long-term negative consequence of performing software maintenance?

    <p>Increased code complexity (A)</p> Signup and view all the answers

    Which of the following best describes the goal of 'preventive maintenance'?

    <p>To address potential problems before they actually appear. (D)</p> Signup and view all the answers

    What is a key difference between software development in an academic setting compared to industrial practice?

    <p>Academic projects are usually individual focused on technologies, while industrial projects focus on business applications with real customers. (C)</p> Signup and view all the answers

    Which characteristic of software makes it different from a physical product?

    <p>Software is considered an immaterial product and does not wear out over time rather its vulnerabilities come from design faults or environment issues, physical products erode. (B)</p> Signup and view all the answers

    What is a primary challenge software developers face due to it's 'digital not analog' nature?

    <p>A minor input change can sometimes lead to very unpredictable and large shifts in output, unlike analog systems. (C)</p> Signup and view all the answers

    According to the content, what is a major reason software development is complex, setting it apart from building construction?

    <p>Software projects face challenges due to a digital base and the many interdependencies not easy to see, unlike in construction where the physical materials are much more obvious. (A)</p> Signup and view all the answers

    What potential negative consequence is associated with the ease of modifying software?

    <p>It can lead to unwanted changes, errors, or a decrease in the software's final quality. (D)</p> Signup and view all the answers

    Why is it hard for software developers to guarantee a defect-free product?

    <p>Because software has many possible execution paths making it difficult to test each one thoroughly, especially when handling complex interdependencies. (A)</p> Signup and view all the answers

    What is a key reason why software products are often shelved once completed in a non-industrial setting?

    <p>Because the main focus is on academic questions and once these are solved, there is no further requirements for the software. (B)</p> Signup and view all the answers

    What characteristic of software development could lead to maintenance problems over the time?

    <p>The complex interdependencies could lead to defects and issues that emerge after the initial development. (D)</p> Signup and view all the answers

    Which of the following best describes the concept of 'high cohesion'?

    <p>A module where all elements are related to the same task. (C)</p> Signup and view all the answers

    In the context of software defects, what distinguishes a 'failure'?

    <p>The program's inability to perform a function as users expect. (B)</p> Signup and view all the answers

    Which activity is primarily aimed at tailoring a generic software product to a specific customer's needs?

    <p>Customization (A)</p> Signup and view all the answers

    What does 'low coupling' primarily indicate in software design?

    <p>Modules independent of each other and able to be reused. (B)</p> Signup and view all the answers

    What is the purpose of the 'regression tests'?

    <p>To ensure that previously fixed bugs do not reappear after changes. (C)</p> Signup and view all the answers

    Which of the following best describes an 'error' in the context of defects?

    <p>A program state or behavior that deviates from the expected, but may not be immediately visible. (D)</p> Signup and view all the answers

    In the deployment process, what does 'data migration' primarily involve?

    <p>Transferring existing data into the new system (C)</p> Signup and view all the answers

    What is the primary focus of 'unit testing' during the coding phase?

    <p>To test particular classes, methods or functions. (C)</p> Signup and view all the answers

    Which of the following best describes the primary goal of system analysis?

    <p>To capture, represent, and manage system requirements. (D)</p> Signup and view all the answers

    What is the main difference between system design and class design?

    <p>System design describes the system's modules and their interactions, while class design details module operations. (D)</p> Signup and view all the answers

    Which of the following best exemplifies a constraint 'with respect to the product'?

    <p>The software must be compatible with a specific operating system. (A)</p> Signup and view all the answers

    What is the purpose of defining both logical and physical architecture in system design?

    <p>To separate the system's functions from their implementation on hardware. (C)</p> Signup and view all the answers

    What is the primary focus of 'requirements elicitation' in requirements engineering?

    <p>Discovering and understanding the needs and constraints from stakeholders. (B)</p> Signup and view all the answers

    Which of the following is an example of a functional requirement?

    <p>The user must be able to export data to a csv file. (C)</p> Signup and view all the answers

    What characterizes a quality requirement, as mentioned in the text?

    <p>It is verifiable, measurable, and doesn't dictate a specific design. (D)</p> Signup and view all the answers

    What is the main difference between business analysis (BA) and system analysis (SA) according to the text?

    <p>BA focuses on high-level business needs, while SA centers on system requirements. (B)</p> Signup and view all the answers

    Flashcards

    Engineering

    The process of using knowledge and principles to design, build, and analyze objects.

    Immaterial Software Product

    Software is a product that exists only in the digital world. It's not physical, so you can't touch it. To see it, you need to have at least part of it implemented.

    Software Focus on Design, Not Production

    The creation of multiple copies of software is easy and doesn't take much effort. Every software product is unique and different.

    Software Doesn't Wear Out

    Software, unlike physical objects, doesn't wear out physically. But it can have errors or bugs due to design flaws or incompatibility with the environment it runs in.

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    Large Software Complexity

    Software can be very complex, far more than a building. It's challenging to test every single path and ensure it's completely bug-free.

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    Software Structural Limitations

    Software design isn't limited by physical laws. Designers have freedom to structure the system, but bad structure can make future changes difficult.

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    Software Interdependencies

    Different parts of software often depend on each other, even in hidden ways. This can lead to problems during development, errors, and maintenance difficulties.

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    Software Digital Mode

    Software responds to input in a digital way. A tiny change in input can lead to a very different output, unlike analog systems where changes are gradual.

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    Business Analysis

    A process that analyzes a business problem, including the customer organization, their processes, goals, and strategies to identify requirements for a new IT system.

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    Vision Document

    A document defining the business problem and scope of an IT system, laying out the initial vision for the project.

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    Stakeholders

    A party interested in the IT system development, having a justifiable right to influence it. They act as a potential source of system requirements.

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    Customer Organization Description

    The description of a customer's organization in a vision document includes precise data, business profile, key processes, relationships with other organizations, organizational structure, and responsibilities.

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    Stakeholder Viewpoint example

    A stakeholder viewpoint describes their expectations and the role they envision the IT system playing in fulfilling those expectations.

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    Functional Requirements

    Requirements that specify how the IT system should operate, outlining the system's functions and capabilities.

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    Quality Requirements

    Requirements that specify the non-functional aspects of the IT system, such as performance, usability, security, and reliability.

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    Constraints

    Limitations or constraints that affect the development of the IT system, such as budget, time, and legal regulations.

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    System Functionality

    The range of tasks the system is designed to perform. This includes the services it provides to users.

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    System Quality Requirements

    The expected quality of the services the system offers. This includes aspects like performance, reliability, and security.

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    System Constraints

    Limitations imposed on the system's development. These can include deadlines, budget constraints, required technologies, and documentation requirements.

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    Performance Requirements

    The number of users the system can handle simultaneously, the amount of data it processes, and how quickly it responds to user requests. It also considers how these factors might change over time.

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    Reliability Requirement

    The assurance that the system will operate error-free for a specified period or number of uses. It defines the system's expected level of reliability.

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    Availability Requirement

    The availability of the system to users. This includes the desired uptime (how long it's operational) and acceptable downtime (how long it can be inactive). It also considers specific hours or days when uptime is more critical.

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    Security Requirement

    The protection of the system from unauthorized access or data breaches. The level of security needed depends on the sensitivity of the system's data.

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    Safety Requirement

    The degree to which the system is secure from causing harm to people or property. It evaluates potential risks associated with the system's operation.

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    Corrective Maintenance

    Changes made to fix defects in an existing software system.

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    Perfective Maintenance

    Modifications that add new features, improve functionality, or optimize performance.

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    Adaptive Maintenance

    Changes made to adapt software to new environments or technologies.

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    Preventive Maintenance

    Changes made to prevent potential problems from occurring in software.

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    Refactoring

    A process of restructuring or reorganizing existing code without changing its behavior, making it easier to understand and maintain.

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    System Design

    Describes the system in terms of its building modules (layers, subsystems) and their terms of cooperation.

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    Class Design

    Describes the internal operations and dependencies within particular modules.

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    Logical Architecture

    The separation of the system into layers and subsystems based on their function.

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    Physical Architecture

    Assigns logical modules to specific physical computers or devices.

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    Communication Interfaces

    How different parts of the system communicate with each other.

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    Design Patterns

    Reusable solutions to common design problems.

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    Good Practices

    Principles and practices that promote good design and code.

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    Design Metrics

    Metrics used to evaluate the quality and effectiveness of design.

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    High Cohesion

    A measure of how well different parts of a software system work together.

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    Low Coupling

    A measure of how independent different parts of a software system are.

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    Defect

    A bug or flaw in a program that prevents it from working correctly.

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    Failure

    The inability of a program to execute a function as expected, making it noticeable to users.

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    Error

    An error or deviation in program behavior that might not be immediately visible to users.

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    Deployment

    The process of delivering a completed IT system to the customer and making it available for use.

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    Maintenance

    The ongoing process of making changes to a deployed IT system after it's delivered.

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    Customization

    The process of customizing a generic software product to meet the specific needs of a customer.

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    What makes software an immaterial product?

    Software is an intangible product that can only be understood through its implementation. Before complete implementation, it exists only in representations like specifications, designs, and algorithms, each offering limited insight.

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    Why is software design more important than production?

    Software production is about creating a unique and different product, not simply manufacturing copies. Creating another copy is easy and doesn't require much effort.

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    Does software wear out?

    Unlike physical objects, software doesn't wear out due to physical factors like corrosion. However, it can fail due to design flaws or conflicts with the environment it runs in.

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    Why is software exceptionally complex?

    Software's complexity can be vast, often surpassing that of a physical building. Thoroughly testing all possible paths and eliminating all defects is a major challenge.

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    What is the impact of software's lack of structural limitations?

    Software design is not restricted by physical laws. Designers have the freedom to structure the system, but poor design choices can hinder future modifications.

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    What are the consequences of interdependencies in software?

    Software components often rely on each other, even in ways that aren't immediately obvious. These interdependencies can lead to development issues, defects, and maintenance problems.

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    How does software respond to input changes?

    Unlike analog systems where small input changes lead to gradual output changes, a small input variation in software can trigger a completely different output. This digital behavior needs to be carefully considered during development.

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    What are the potential downsides of software's flexibility?

    Software's ease of modification is a valuable feature. However, it can also lead to unintended changes, errors, or an overall decrease in product quality.

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    Stakeholder Viewpoint

    A specific expectation or viewpoint expressed by a stakeholder about how the IT system should benefit them.

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    System's Context

    Any party that interacts with the system, including users, other systems, and external regulations.

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    Requirements Engineering

    The process of capturing, analyzing, specifying, validating, and managing requirements for a system.

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    System Design (Architectural Design)

    The design concept describing the system's building blocks (layers, subsystems) and how they interact.

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    Class Design (Detailed Design)

    Describes the internal workings and dependencies within specific modules of the system.

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    Users and their specifics

    The specific individuals who will interact with the system and the characteristics of each individual user.

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    External cooperating systems

    The details of how the system interacts with other existing IT systems, including the extent of the interaction, functions exchanged, data formats, and technical methods employed.

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    Defect (Bug)

    A mistake or error in a program that prevents it from working correctly. It's like a typo in a recipe that ruins a dish

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    Study Notes

    Software Engineering

    • Engineering is the process of using knowledge and principles to design, build, and analyze objects. It is practically oriented.
    • Software engineering involves analyzing and designing software, considering factors like usability, maintainability, portability, testability, and scalability.
    • Software development includes various aspects, such as design patterns, architecture styles, team processes, estimation methods, requirements analysis, quality assurance, and more.
    • Computer science concepts, like computability, formal specification, correctness proofs, network analysis, and others are relevant to software engineering.
    • Related fields such as queueing theory, algorithms, programming languages (syntax/semantics), cryptography , automatic programming, machine learning, compiler design, and more are utilized in software engineering.

    IT Experience During Study

    • Students often have very limited or no real-world industrial experience.
    • Software projects during study are usually small-scale and for academic purposes.
    • The focus might be more on acquiring technology or answering academic questions than on providing value to real customers.
    • Completed projects might not always transition into tangible, deployed products.

    Industrial IT Practice

    • Focuses mainly on professional and profitable software development.
    • Software products range in size, from small (under 10 programmers) to large (over 1000 programmers).
    • Development teams are typically large with many team members and specialists.
    • Customers for products in industrial practice have specific needs and application requirements.
    • Software is often maintained and updated for several years or decades.
    • Industrial products often have substantial focus on business applications.

    Software Specifics

    • Software is immaterial, requiring implementation to be perceived.
    • Projects often focus more on design than on simply copying.
    • Software's complexity often surpasses that of physical objects, presenting challenges in fault detection and removal.
    • Software doesn't wear out from usage but can still have faults due to design or environmental incompatibility; for example, software might have faults related to software or hardware interfaces.

    Software Errors

    • Specifications (39%): The most common location for software errors.
    • Hardware Interface (11%): Errors also occur regarding the hardware interface.
    • Logic Implementation (3%): Logical errors in the software are a relatively small percentage of all defects.
    • Logic Description (5%): The logic design can lead to errors.
    • Software Interface (10%): Faults related to the software's interface.
    • Error Checking (15%): Errors can arise during checking steps.
    • Module Design (15%): Faults or errors linked to module design.
    • Documentation (2%): Documentation errors are relatively infrequent.

    Cost of Error Correction

    • Errors detected and corrected during the development process cost much less than errors found in deployed software.
    • The cost increases exponentially once the software is deployed.

    Value for Customers

    • Customer needs and requirements must be explicitly gathered from the end user and translated to technical requirements.
    • Software products must be well tailored to the customers' unique operational requirements.
    • Software development must consider the practical necessities and expectations of customers.

    Project Success and Failure

    • Important factors for project success include user involvement, executive team support, clear and concise requirements, realistic timelines, and capable staff.

    Business Analysis and System Analysis

    • The analysis aims to provide a thorough understanding of the business problem and processes involved.
    • It clarifies scope and requirements for the IT system.
    • A vision document outlines the intended scope and requirements of the IT system.
    • It focuses on the description of the customer organization, its stakeholders.
    • It should outline context (users, cooperation), functional, quality, and performance needs, and constraints (e.g., budget, resources) .

    System's Context

    • Information about who will use the system, where it will be used (environment), any specific user skills in using particular systems, any training required, and documentation are needed for a complete system context.

    System Requirements

    • These cover functionality (what the system does) and quality attributes (e.g., performance, usability, reliability).
    • Essential for understanding and accurately defining the software system.
    • Must be specific, clear, measurable, attainable, relevant, and time-bound (SMART).

    Expressing Requirements

    • Functional requirements outline system capabilities for users.
    • Quality attributes (e.g., performance, reliability, security) are expressed with measurable and verifiable criteria.
    • Constraints may include deadlines, use of specific technologies, or other limitations.

    Project Success Factors

    • Factors such as user involvement, management support, clear requirements, realistic timelines, capable staff members, and effective communication are essential for successful project completion.

    Software Development Areas and Models

    • Areas like Project Management, Quality Assurance, and Development / Maintenance are crucial parts of software engineering.
    • Models, such as the Waterfall Model, Iterative Models, V-model, Incremental model, and Prototyping, are widely used in software development.

    Class Design

    • Class design defines the internal organization of software modules, including modules and their constituent parts.
    • It considers dependencies amongst modules and their constituents, data structures, and operations.
    • Design patterns provide reusable solutions to common design problems.

    Software Testing

    • Testing is a vital process for detecting bugs and ensuring quality.
    • Bugs in software can lead to unexpected behavior, errors, or faults.
    • Testing aims to confirm adherence to requirements, specifications, and quality attributes.
    • It is challenging to test every aspect of a complex program.

    Deployment

    • Deployment involves delivering the software system to users.
    • Tasks include planning, installation, training users, data migration, go-live support, and system configuration and customization.

    Maintenance

    • Maintenance encompasses fixing defects, improving performance, adding features, and adapting to changing requirements and environments.
    • The cost and effort of maintenance can be substantial, requiring significant resources over the software's useful life.

    Requirements Management

    • Requirements Management involves managing all aspects of requirements throughout the system lifecycle.
    • It ensures consistency and completeness of requirements.
    • Activities include gathering, analyzing, documenting, validating, and managing all changes in requirements.

    Requirements Engineering

    • Gathering requirements involves understanding user needs to design the system accordingly. Methods for eliciting needs include interviews, workshops, questionnaires, observation, and feedback. Use cases and other techniques are also relevant.
    • Techniques ensure specific details are considered during requirements gathering.
    • Techniques (such as use case analysis) are relevant to the analysis of the software system's requirements.

    Software Analysis Techniques

    • Employing appropriate techniques during requirement analysis is crucial to ensure all necessary details are conveyed.
    • Validation methods for ensuring requirement accuracy are included.

    Design Patterns

    • Design patterns are reusable solutions to commonly occurring design problems, enabling consistency and reusability in code implementation.
    • Categories such as creational, structural, and behavioral patterns are significant.
    • Adherence to good design principles and commonly-used patterns is recommended to maintain maintainability and quality.

    Optimization Measures

    • Metrics for analyzing software quality, like cohesion and coupling, aid in assessing software structure.

    Agile Methodologies

    • Agile approaches (including Scrum) are common for software development.
    • Agile is characterized by iterative development, adaptability, and continuous feedback.

    Modelling

    • Modelling involves creating simplified representations of processes and systems.
    • Models facilitate understanding and communication within development teams.
    • Various models are used depending on the scope and level of detail desired (e.g., instance-level and model-level models).
    • Different types of models are relevant for different purposes and levels of abstraction.

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    Software Engineering PDF

    Description

    Test your understanding of key software engineering principles and challenges faced in both industrial and non-industrial settings. This quiz covers characteristics of software products, maintenance types, and the unique attributes of software compared to physical products.

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