Software Processes: Chapter 2 Lecture 1 Quiz

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Questions and Answers

What is a software process model?

A detailed plan of software development activities

Which activity involves defining what the system should do?

Specification

What does the term 'validation' refer to in the context of software processes?

Checking that it does what the customer wants

What is meant by 'evolution' in software processes?

Changing the system in response to customer needs Signup and view all the answers

What is a common feature of all software processes?

Specification Signup and view all the answers

How are software process models best described?

As abstract representations of a process Signup and view all the answers

What are the outcomes of a process activity as mentioned in the text?

Products Signup and view all the answers

Which model is described as a plan-driven model with separate and distinct phases of specification and development?

The waterfall model Signup and view all the answers

What is the main drawback of the waterfall model, as mentioned in the text?

Difficulty of accommodating change after the process is underway Signup and view all the answers

Which type of processes have planning that is incremental and easier to change to reflect changing customer requirements?

Agile processes Signup and view all the answers

What is the main benefit of incremental development as mentioned in the text?

Reduced cost of accommodating changing customer requirements Signup and view all the answers

What are the separate identified phases in the waterfall model as mentioned in the text?

$\text{Implementation and unit testing, Integration and system testing, Operation and maintenance}$ Signup and view all the answers

$\text{What is true about most practical processes according to the text?}$

$\text{They include elements of both plan-driven and agile approaches}$ Signup and view all the answers

$\text{Why is the waterfall model mostly used for large systems engineering projects according to the text?}$

$\text{It allows for easy coordination between multiple sites}$ Signup and view all the answers

$\text{Which software process model involves assembling the system from existing components?}$

$\text{Reuse-oriented software engineering}$ Signup and view all the answers

$\text{What do roles reflect in a process according to the text?}$

$\text{Responsibilities of people involved in the process}$ Signup and view all the answers

Study Notes

Software Process Models

A software process model is a simplified representation of the software development process.
A software process model defines the activities, actions, and tasks involved in the software development process.

Software Process Activities

Defining what the system should do is known as requirements analysis.
Validation refers to the process of checking that the system does what the customer wants.
Evolution refers to the process of changing the system after its initial deployment.

Common Features of Software Process Models

A common feature of all software processes is that they involve a series of activities, actions, and tasks.

Process Activity Outcomes

The outcomes of a process activity are the products, deliverables, or artifacts produced during the activity.

Software Process Model Types

The waterfall model is a plan-driven model with separate and distinct phases of specification and development.
The main drawback of the waterfall model is that it is inflexible and does not allow for changes to be made once the development process has begun.
Incremental development processes have planning that is incremental and easier to change to reflect changing customer requirements.
The main benefit of incremental development is that it allows for early delivery of a partial system and for customer feedback.

Waterfall Model

The separate identified phases in the waterfall model are requirements analysis, design, implementation, testing, and deployment.

Practical Processes

Most practical processes are a combination of different process models and do not conform to a single process model.

Large Systems Engineering Projects

The waterfall model is mostly used for large systems engineering projects because it is a plan-driven model that allows for a clear understanding of the scope of the project and the tasks involved.