Podcast
Questions and Answers
Which of the following best describes a software process model?
Which of the following best describes a software process model?
- A detailed listing of all possible software defects.
- A comprehensive guide to writing software code.
- A simplified representation of software process activities and their order. (correct)
- A specific type of software application for process automation.
In the context of software processes, what is the primary purpose of defining roles?
In the context of software processes, what is the primary purpose of defining roles?
- To assign blame when an activity fails.
- To clarify who is accountable for each process activity. (correct)
- To ensure every team member has the same level of access.
- To promote competition among team members.
What constitutes a 'product' within a software process?
What constitutes a 'product' within a software process?
- A software application ready for deployment.
- The outcome of a software process activity. (correct)
- The budget allocated for a software project.
- The documentation outlining the project scope.
Which of the following activities would be considered a sub-activity within a software process?
Which of the following activities would be considered a sub-activity within a software process?
How do software process models primarily assist in software development?
How do software process models primarily assist in software development?
What is the significance of understanding software process activities?
What is the significance of understanding software process activities?
What is the distinction between a software process and a software process model?
What is the distinction between a software process and a software process model?
Suppose a project is behind schedule, and the team decides to skip user interface testing to catch up. Which element of the software process is being compromised?
Suppose a project is behind schedule, and the team decides to skip user interface testing to catch up. Which element of the software process is being compromised?
Which of the following best describes the purpose of pre- and post-conditions in a software process?
Which of the following best describes the purpose of pre- and post-conditions in a software process?
In the context of software development, which of the following is considered a 'Product'?
In the context of software development, which of the following is considered a 'Product'?
What is the primary role of a 'Developer' in a software development activity?
What is the primary role of a 'Developer' in a software development activity?
Which of the following is an example of a pre-condition for a software development activity?
Which of the following is an example of a pre-condition for a software development activity?
What is the benefit of defining post-conditions for a 'S/W development' activity?
What is the benefit of defining post-conditions for a 'S/W development' activity?
Why is there no 'one-size-fits-all' software development process?
Why is there no 'one-size-fits-all' software development process?
For a project with rapidly changing requirements, what type of software process is likely to be MOST effective?
For a project with rapidly changing requirements, what type of software process is likely to be MOST effective?
Why would a critical system such as aircraft control software likely require a plan-driven approach?
Why would a critical system such as aircraft control software likely require a plan-driven approach?
Which characteristic distinguishes plan-driven processes from agile processes?
Which characteristic distinguishes plan-driven processes from agile processes?
In which scenario would the waterfall model be MOST appropriate?
In which scenario would the waterfall model be MOST appropriate?
What is a primary limitation of the waterfall model regarding changes during the development process?
What is a primary limitation of the waterfall model regarding changes during the development process?
Incremental development is described as a fundamental part of agile approaches. Which of the following statements describes incremental development?
Incremental development is described as a fundamental part of agile approaches. Which of the following statements describes incremental development?
How does reuse-oriented software engineering differ from the waterfall model and incremental development?
How does reuse-oriented software engineering differ from the waterfall model and incremental development?
Which of the following is a primary benefit of using an incremental development model?
Which of the following is a primary benefit of using an incremental development model?
What is a key factor to consider when deciding between using a plan-driven approach and an agile approach?
What is a key factor to consider when deciding between using a plan-driven approach and an agile approach?
A project team is developing a safety-critical system with strict regulatory requirements. Which approach is MOST suitable?
A project team is developing a safety-critical system with strict regulatory requirements. Which approach is MOST suitable?
What is a significant challenge associated with incremental development regarding system architecture?
What is a significant challenge associated with incremental development regarding system architecture?
In practice, most large software systems are developed using a process that:
In practice, most large software systems are developed using a process that:
Why might managers find incremental development challenging to oversee?
Why might managers find incremental development challenging to oversee?
How does the handling of system specifications typically differ in incremental development compared to traditional methods?
How does the handling of system specifications typically differ in incremental development compared to traditional methods?
What is the primary focus of reuse-oriented software engineering?
What is the primary focus of reuse-oriented software engineering?
In reuse-oriented software engineering, which stage involves assessing the suitability of existing software components for the project?
In reuse-oriented software engineering, which stage involves assessing the suitability of existing software components for the project?
What is a potential drawback of reuse-oriented software engineering related to requirements?
What is a potential drawback of reuse-oriented software engineering related to requirements?
What is a risk associated with using reused system elements in software engineering?
What is a risk associated with using reused system elements in software engineering?
Flashcards
Pre-conditions
Pre-conditions
Statements that must be true BEFORE a software process activity begins.
Post-conditions
Post-conditions
Statements that must be true AFTER a software process activity is complete.
Products of 'S/W development' activity
Products of 'S/W development' activity
A software design and a computer program.
Role of Developer
Role of Developer
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Pre-conditions for 'S/W development'
Pre-conditions for 'S/W development'
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Post-conditions for 'S/W development'
Post-conditions for 'S/W development'
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Products of Calculator App 'S/W development'
Products of Calculator App 'S/W development'
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Software process choice factors
Software process choice factors
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Software Process
Software Process
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Software Process Activities
Software Process Activities
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Software Process Model
Software Process Model
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Products
Products
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Roles
Roles
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Software sub-activities
Software sub-activities
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Examples of Software Process Models
Examples of Software Process Models
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Product Example
Product Example
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Plan-driven process
Plan-driven process
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Agile process
Agile process
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Waterfall model
Waterfall model
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Incremental development
Incremental development
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Reuse-oriented software engineering
Reuse-oriented software engineering
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Waterfall model use case
Waterfall model use case
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Waterfall model limitation
Waterfall model limitation
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Waterfall model requirement stability
Waterfall model requirement stability
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Benefit of incremental development
Benefit of incremental development
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Problem of incremental development
Problem of incremental development
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System structure degradation
System structure degradation
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Requirements Specification
Requirements Specification
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Software Discovery and Evaluation
Software Discovery and Evaluation
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Advantage of Reuse-Oriented Engineering
Advantage of Reuse-Oriented Engineering
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Study Notes
- Software Processes are a set of activities required to develop a software system
- When software processes are described and discussed, it usually is about software process activities and models
Software Process Activities
- Software specification involves customers and engineers defining the software to be produced, along with constraints on its operation
- Software development involves designing and programming the software
- Software validation ensures the software meets customer requirements
- Software evolution involves modifying the software to reflect changing customer and market requirements
- Activities such as specifying a data model and designing a user interface are considered sub-activities
Software Process Model
- It is a simplified representation of software process activities and their ordering
- Example models are Waterfall, Incremental Development, and Reuse-oriented software engineering
Software process descriptions include
- Products, which are the outcomes of a software process activity
- Roles, who are responsible for a software process activity
- Pre- and post-conditions, which are statements that are true before and after a software process activity
Software process activity for "S/W development"
- Outcome is a software design and computer program
- Responsibility belongs to the developer, who designs and writes code
Pre-conditions include
- Defined software requirements
- A set up development environment
- Available developers
Post-conditions include
- The software is functional and meets requirements
Software process activity for "S/W development" for Calculator Application
- Outcome is an application design and functional calculator application
- Responsibility belongs to the developer, who designs and writes code
Pre-conditions include
- Defined requirements for the calculator application
- A set up development environment
- An available developer
Post-conditions include
- The calculator application is functional and meets requirements
- There is no ideal software process and organizations develop unique processes based on people involved and the software being developed
- Plan-driven approaches are required for critical systems like aircraft, while agile processes are better suited for software with changing requirements
Plan-driven vs. Agile
- Plan-driven processes involve planning all activities in advance, with progress measured accordingly
- Agile processes involve incremental planning, making it easier to adapt to changing customer requirements
- Practical processes often combine elements of both approaches
- There are no right or wrong software processes, ultimately
Software Process Models
- Include the waterfall model, incremental development, and reuse-oriented software engineering
- Larger systems use processes integrating elements from all of those models
Waterfall Model
- A plan-driven process with separate specification and development phases
Incremental Development
- A fundamental aspect of agile approaches where specification, developing and validation are interleaved and may be plan-driven or agile
Reuse-oriented Software Engineering
- Assembles the system from existing components and may be plan-driven or agile
Waterfall Model Limitations
- It is mainly used for large systems engineering projects where the system is developed at several sites
- The plan-driven nature helps coordinate work
- It can be difficult when needing to respond to changing customer requirements
Incremental Development Benefits
- Reduced costs of accommodating changing customer requirements
- Easier to obtain customer feedback
- Rapid delivery and deployment of useful software is possible
Incremental Development Problems
- The process is not visible
- System structure degrades as new increments are added
- Software specification is part of the system development contract
Reuse-Oriented Software Engineering
- Based on systematic reuse, integrating systems from existing components or COTS
- Key process stages include requirements specification, software discovery and evaluation, requirements refinement, application system configuration, and component adaptation and integration
Advantages and disadvantages include
- Reduced costs and risks as less new software is developed
- Faster system delivery and deployment
- It can cause requirements compromises, so the system may not meet real user needs
- Loss of control over the evolution of reused system elements
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Description
Overview of software processes, including activities like specification, development, validation, and evolution. Explanation of software process models such as Waterfall and Incremental Development. Focus on products, roles, and pre/post conditions.
