Podcast
Questions and Answers
What characterizes the 'Initial' capability maturity level?
What characterizes the 'Initial' capability maturity level?
- Essentially uncontrolled processes (correct)
- Defined procedures for process management
- Product management procedures are established
- Quality management strategies in place
What is the primary focus of requirements engineering?
What is the primary focus of requirements engineering?
- Creating executable software systems
- Implementing process improvement strategies
- Validating that a system meets user needs
- Developing a software specification (correct)
Which of the following is NOT a key point regarding software processes?
Which of the following is NOT a key point regarding software processes?
- Iterative development allows for manageable changes
- Software evolution is unnecessary for system utility (correct)
- Software validation ensures the system meets its specification
- Design processes transform specifications into systems
What is meant by 'Managed' capability maturity level?
What is meant by 'Managed' capability maturity level?
Which process aims to verify that a system meets user needs and specifications?
Which process aims to verify that a system meets user needs and specifications?
Which general process model is NOT mentioned as an example in the content?
Which general process model is NOT mentioned as an example in the content?
What are agile approaches primarily aimed at improving?
What are agile approaches primarily aimed at improving?
Which maturity level corresponds to having defined and used process management procedures?
Which maturity level corresponds to having defined and used process management procedures?
What is the primary purpose of verification and validation (V & V) in software processes?
What is the primary purpose of verification and validation (V & V) in software processes?
Which testing stage is specifically focused on the entire system?
Which testing stage is specifically focused on the entire system?
What does component testing address?
What does component testing address?
What is implied by the statement that software is inherently flexible?
What is implied by the statement that software is inherently flexible?
What is a significant challenge when dealing with changes in large software projects?
What is a significant challenge when dealing with changes in large software projects?
Customer testing focuses on verifying system performance using what kind of data?
Customer testing focuses on verifying system performance using what kind of data?
Which phase in the software development process signifies the transition from development to the maintenance of software?
Which phase in the software development process signifies the transition from development to the maintenance of software?
Why is effective testing critical in software development?
Why is effective testing critical in software development?
What is a key advantage of incremental delivery in software development?
What is a key advantage of incremental delivery in software development?
What problem is commonly associated with incremental delivery?
What problem is commonly associated with incremental delivery?
How does process improvement benefit software companies?
How does process improvement benefit software companies?
What does the process maturity approach focus on?
What does the process maturity approach focus on?
What is a primary characteristic of agile approaches in software development?
What is a primary characteristic of agile approaches in software development?
What is a negative aspect of the iterative process in software development?
What is a negative aspect of the iterative process in software development?
Which statement is true regarding the priority of system services in incremental delivery?
Which statement is true regarding the priority of system services in incremental delivery?
What is the aim of process improvement in software development?
What is the aim of process improvement in software development?
What is the main purpose of change anticipation in software processes?
What is the main purpose of change anticipation in software processes?
How does incremental development support change tolerance?
How does incremental development support change tolerance?
What is a prototype primarily used for in the software development process?
What is a prototype primarily used for in the software development process?
Which benefit is NOT associated with prototyping?
Which benefit is NOT associated with prototyping?
In incremental delivery, what is the primary role of customer feedback?
In incremental delivery, what is the primary role of customer feedback?
Which of the following situations best illustrates the concept of change tolerance?
Which of the following situations best illustrates the concept of change tolerance?
What is a critical aspect of the system prototyping approach?
What is a critical aspect of the system prototyping approach?
Which advantage of prototyping is primarily related to reducing future development effort?
Which advantage of prototyping is primarily related to reducing future development effort?
What is a key focus area for prototype development?
What is a key focus area for prototype development?
Why are throw-away prototypes not suitable for production systems?
Why are throw-away prototypes not suitable for production systems?
How are increments handled in incremental delivery?
How are increments handled in incremental delivery?
What is a characteristic of incremental development?
What is a characteristic of incremental development?
What happens to the prototype as development progresses using rapid changes?
What happens to the prototype as development progresses using rapid changes?
What is the main challenge of implementing incremental delivery for replacement systems?
What is the main challenge of implementing incremental delivery for replacement systems?
What may be omitted from prototype features during development?
What may be omitted from prototype features during development?
What does incremental delivery emphasize in software development?
What does incremental delivery emphasize in software development?
What is the main drawback of the waterfall model?
What is the main drawback of the waterfall model?
In which scenario is the waterfall model considered most appropriate?
In which scenario is the waterfall model considered most appropriate?
Which phase is NOT part of the waterfall model?
Which phase is NOT part of the waterfall model?
How does incremental development reduce costs related to customer change requests?
How does incremental development reduce costs related to customer change requests?
What is one benefit of incremental development regarding customer feedback?
What is one benefit of incremental development regarding customer feedback?
Which statement is true about the visibility of the process in incremental development?
Which statement is true about the visibility of the process in incremental development?
What advantage does incremental development offer in terms of software delivery?
What advantage does incremental development offer in terms of software delivery?
What characterizes the development process of large systems in the waterfall model?
What characterizes the development process of large systems in the waterfall model?
Flashcards
Integration and configuration
Integration and configuration
Combining existing software components to create a new system. These components can be customized for the specific needs of the project.
Waterfall model
Waterfall model
A linear software development process where each phase is completed sequentially, starting with requirements analysis and ending with operation and maintenance. Changes are difficult to implement once a phase is completed.
Requirements analysis and definition
Requirements analysis and definition
The initial phase of the waterfall model, focusing on understanding the needs of the user and documenting them precisely. It's about defining the scope of the project.
System and software design
System and software design
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Implementation and unit testing
Implementation and unit testing
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Integration and system testing
Integration and system testing
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Operation and maintenance
Operation and maintenance
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Incremental development
Incremental development
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What is V&V?
What is V&V?
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Why is testing important in V&V?
Why is testing important in V&V?
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What are the different stages of software testing?
What are the different stages of software testing?
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What are the testing phases in a plan-driven software process?
What are the testing phases in a plan-driven software process?
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Why is software evolution necessary?
Why is software evolution necessary?
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What does system evolution mean?
What does system evolution mean?
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Why is change management important?
Why is change management important?
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What are the costs associated with change in software projects?
What are the costs associated with change in software projects?
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Change anticipation
Change anticipation
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Prototype
Prototype
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Change tolerance
Change tolerance
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System prototyping
System prototyping
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Incremental delivery
Incremental delivery
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Benefits of prototyping
Benefits of prototyping
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How does prototyping support change anticipation?
How does prototyping support change anticipation?
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Prototype development
Prototype development
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Throw-away prototype
Throw-away prototype
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Why prototypes are discarded?
Why prototypes are discarded?
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Benefits of Incremental development
Benefits of Incremental development
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Incremental delivery vs. Incremental development
Incremental delivery vs. Incremental development
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Incremental Delivery Advantages
Incremental Delivery Advantages
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Incremental Delivery Problems
Incremental Delivery Problems
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Process Improvement
Process Improvement
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Process Maturity Approach
Process Maturity Approach
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Agile Approach
Agile Approach
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What makes agile methods effective?
What makes agile methods effective?
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How does process maturity reflect organizational software development?
How does process maturity reflect organizational software development?
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What are software processes?
What are software processes?
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What are software process models?
What are software process models?
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What is requirements engineering?
What is requirements engineering?
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What is software validation?
What is software validation?
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What is software evolution?
What is software evolution?
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What is the SEI capability maturity model?
What is the SEI capability maturity model?
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What are the key points of the SEI model?
What are the key points of the SEI model?
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What are the principal approaches to process improvement?
What are the principal approaches to process improvement?
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Study Notes
Software Processes
- Software processes are the activities involved in creating software systems
- Software process models are abstract representations of these activities
- General process models outline the structure of software development
- Examples include the waterfall, incremental, and reuse-oriented models
General Process Models
- Waterfall model: Sequential phases with strict dependencies. Requirements, design, implementation, testing, and maintenance occur sequentially. Difficult to accommodate change.
- Incremental development: Development and validation are interleaved, delivering parts of the system. Easier to incorporate changes and get feedback.
- Reuse-oriented development: Assembles systems from pre-existing components or commercial-off-the-shelf systems (COTS). Reduces development time but may compromise requirements. Examples include stand-alone applications, objects integrated via frameworks (like .NET or J2EE), and Web services. Reuse has significant benefits for building business systems.
Key Process Stages
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Requirements Specification: Defining the services and constraints for the system's operation and development.
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Requirements Engineering: Process of eliciting, analyzing, specifying, validating requirements
- Stakeholders' desired system features
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Software Design and Implementation: Converting the system specification into an executable system
- Software design: creating the software structure to match the specification
- Implementation: translating the design into working code
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Software Validation: Ensuring the system conforms to its specification and meets user needs.
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System and Component Testing: Testing individual parts, then testing the entire system
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Customer Testing: Evaluating usability and satisfaction with user-provided data/scenarios.
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Software Evolution: Adapting the software to changing requirements
- System evolution: iterative process involving assessing the current system, proposing and implementing changes.
Coping with Change
- Change is unavoidable in software projects because of:
- Changes in business needs, technological advancements, or platform modifications.
- Methods to aid in adapting to change include:
- Change anticipation and tolerance: Building flexibility into the process to facilitate easier changes.
Prototype Development
- A prototype is an initial version of a system, used to:
- Demonstrate concepts and try out design options.
- Help with requirements elicitation and validation.
- Support exploration of design options and UI design in the design process.
- Support back-to-back testing in the testing process.
- Benefits include:
- Improved system usability
- Closer alignment to real user needs
- Improved design and maintainability
- Reduced development time
- Types of prototypes include throw-away prototypes.
Incremental Delivery
- Systems are developed in increments from smaller parts to larger, more complete systems
- User requirements are prioritized, with highest priorities included first.
- Requirements are typically frozen once a component is started allowing further evolution for subsequent features.
Process Improvement
- Improving processes for quality, reduce costs, or speed up development time
- Approaches to process improvement include:
- Process maturity approach: Improving process management techniques and software engineering principles
- Agile approach: Facilitating rapid, iterative development in response to changing needs.
Process Metrics
- Metrics for assessing process performance, often quantitative (e.g., time taken for activities, resources used, number of errors)
- Capability Maturity Model (CMM): A framework for evaluating and improving software development processes. The CMM has different levels from "Initial" to "Optimizing," signifying the level of process maturity within an organization.
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