Introduction to Software Engineering Part 1

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What is the primary reason why software engineering is crucial in today's economy?

Because it is a field that requires minimal investment and yields high returns
Because the economies of all developed nations are dependent on software (correct)
Because software development is a solo activity that does not require teamwork
Because it is a rapidly growing field with many job opportunities

According to the Standish Group's 2015 report, what percentage of projects were delivered on time, on budget, with the required features and functions?

51% of all projects
39% of all projects (correct)
61% of all projects
21% of all projects

What is a major problem identified in the Standish Group's reports on software projects?

Poor or lack of user involvement (correct)
Lack of advanced technology
Inadequate team size
Insufficient funding

What fraction of GNP does software expenditure represent in developed countries?

A significant fraction (C) Signup and view all the answers

What is the primary concern of software engineering?

Theories, methods, and tools for professional software development (A) Signup and view all the answers

What percentage of software projects were either cancelled before delivery or delivered but never used, according to the Standish Group's reports?

18% of all projects (C) Signup and view all the answers

What is the primary limitation of the waterfall model in software development?

It does not allow for accommodating changes after the process is underway. (C) Signup and view all the answers

In which type of projects is the waterfall model most commonly used?

Large systems engineering projects developed at multiple sites. (D) Signup and view all the answers

What is the advantage of the waterfall model in terms of coordination?

It facilitates coordination of work in large systems engineering projects. (B) Signup and view all the answers

What is the sequence of phases in the waterfall model?

Requirements Analysis and Definition, System and Software Design, Implementation and Unit Testing, Integration and System Testing, Operation and Maintenance. (A) Signup and view all the answers

What is the main advantage of using the waterfall model in software development?

It is not mentioned in the text. (A) Signup and view all the answers

What is the primary characteristic of the waterfall model in terms of phase completion?

A phase has to be complete before moving onto the next phase. (C) Signup and view all the answers

What is the primary focus of the software design activity?

Defining the overall system structure and component relationships (B) Signup and view all the answers

Which software process activity involves converting the system specification into an executable system?

Software Implementation (B) Signup and view all the answers

What is the primary focus of architectural design?

Identifying the overall system structure and component relationships (B) Signup and view all the answers

Which design activity involves defining the interfaces between system components?

Interface Design (A) Signup and view all the answers

What is the relationship between software design and implementation activities?

They are closely related and may be inter-leaved (A) Signup and view all the answers

What is the primary focus of requirements validation?

Checking the validity of system requirements (C) Signup and view all the answers

What is a major advantage of the Incremental and Iterative Model compared to the waterfall model?

It reduces the cost of accommodating changing customer requirements (C) Signup and view all the answers

What is a challenge of the Incremental and Iterative Model?

The process is not visible, making it hard to measure progress (B) Signup and view all the answers

What is a benefit of the Incremental and Iterative Model in terms of customer feedback?

Customers can comment on demonstrations of the software and see how much has been implemented (A) Signup and view all the answers

What is a consequence of not refactoring the software in the Incremental and Iterative Model?

Regular change tends to corrupt the system structure (A) Signup and view all the answers

What is a benefit of the Incremental and Iterative Model in terms of deployment?

Deployment is more rapid and cost-effective (D) Signup and view all the answers

What is a problem with documentation in the Incremental and Iterative Model?

It is not cost-effective to produce documents that reflect every version of the system (C) Signup and view all the answers

What is the primary focus of system engineering?

All aspects of computer-based systems development (B) Signup and view all the answers

What is a system's boundary?

The conceptual line that divides the system from its environment (C) Signup and view all the answers

What is the consequence of software's malleability?

Software is under constant pressure to be changed rather than replaced (C) Signup and view all the answers

Which of the following is an example of a system's environment?

The external factors that affect the system (D) Signup and view all the answers

What is the result of increasing software complexity?

Increased errors in the software (A) Signup and view all the answers

What is a domain in the context of system engineering?

A particular area of interest (C) Signup and view all the answers