Ch 1: SW Engineering Introduction

Question 1

What cost dominates computer system costs?

Answer 1

Software costs

Question 2

Which costs more?
Maintaining software or developing software

Answer 2

Maintaining software

Question 3

What might happen as we increase the complexity of the system?

Answer 3

Demands change
Systems have the be built and delivered faster

Question 4

What might happen if software is developed without using softwware engineering methods?

Answer 4

Software often is more expensive and less reliable

Question 5

What is software

Answer 5

Computer programs and documentation

Question 6

What are the attributes of good software?

Answer 6

Delivers the required functionality and performance to the user

Should be maintainable, dependable and useable

Question 7

What is software engineering?

Answer 7

Concerned with all aspects of software production

Question 8

What are the fundamental software engineering activities/software process activities?

Answer 8

1. Software specification
2. Software development
3. Software validation
4. Software evolution

Question 9

What is the difference between software engineering and computer science

Answer 9

Compsci: Theory and fundamentals
Software: Developing and delivering useful software

Question 10

What is the difference between software engineering and system engineering?

Answer 10

Software: Concerned with all aspects of computer based systems development

Engineering: More general process

Question 11

What are the costs of software engineering?

Answer 11

60% software & development
30% testing

Question 12

What are the best software engineering techniques and methods?

Answer 12

Games developed using a series of prototypes

Safety Critical Control Systems require complete and analyzable specification to be developed

Question 13

What differences has the web made to software engineering?

Answer 13

Important advances in programming languages and software reuse

Question 14

What are generic products?

Answer 14

Stand alone product developed for everyone

Question 15

What are customized products?

Answer 15

Software commissioned by a specific custom to meet their own need

Question 16

What are the essential attributes of good software

Answer 16

• Maintainability
• Dependability and security
• Efficiency
• Acceptability

Question 17

What is the engineering disicpline?

Answer 17

Use appropriate theories and methods to solve problems bearing in mind organizational and financial constraints

Question 18

What are the application types?

Answer 18

• Stand alone apps
• Interactive/transaction apps
• Embedded control systems
• Batch processing systems
• Entertainment systems
• Modeling and Simulation Systems
• Data collection systems
• Systems of systems

Question 19

What are stand alone apps

Answer 19

Run on a local computer

Question 20

What are transaction based apps?

Answer 20

Run on a remote computer
Accessed by users on their own PCs

Question 21

What are Embedded control systems?

Answer 21

Control and manage hardware devices

Question 22

What are batch processing systems?

Answer 22

Designed to process data in large batches

Question 23

What are entertainment systems?

Answer 23

For personal use, intended to entertain the user

Question 24

System for modeling and simulation

Answer 24

Model physical processes or situations

Question 25

What are Data collection systems

Answer 25

Collect data from their environment using a set of sensors

Sends data to other systems for processing

Question 26

What are systems of systems?

Answer 26

Systems composed of a number of other software systems

Question 27

What are the issues of professional responsibility?

Answer 27

• Confidentiality
• Competence
• Intellectual property rights
• Computer misuse

Question 28

What is the ACM/IEEE Code of Ethics?

Answer 28

A code of ethical practice containing 8 principles related to the behavior of and decisions made by professional software engineers

Question 29

What are the 8 principles of ACM/IEEE Code of Ethics?

Answer 29

1. Public
2. Client & employer
3. Product
4. Judgement
5. Management
6. Profession
7. Colleagues
8. Self