Software Engineering Profession

Question 1

Software Engineering based on Wang & King

Answer 1

Software engineering is a discipline that adopts engineering approaches, such as established methologies, processes, measurement, tools, standards, in the development of large-scale software seeking to result in high-productivity, low cost, and measurable development schedule.

Question 2

Software Engineering by John A McDermid?

Answer 2

Software engineering is the science and art of specifying, designing, implementing and evolving - with economy, timeliness and elegance - programs, documentation and operating procedures whereby computers can be made useful to man.

Question 3

Ian Somerville definition of Software Engineering?

Answer 3

Software Engineering is an engineering discipline that is concerned with all aspects of software production from initial conception to operation and maintenance.

Question 4

Wang and King?

Answer 4

An engineering discipline.

Large scale software

Question 5

Characteristics of Software Engineering?

Answer 5

• Inherent complexity and diversity
• Difficulty of establishing and stabilizing requirements
• Changeability or malleability of software
• Abstraction and intangibility of software
• Requirement of various problem-domain knowledge

Question 6

Engineering Dimensions?

Answer 6

Size
Cost
Quality
Lifetime
Measurability
Repeatability
Reusability

Question 7

What is Size dimension?

Answer 7

Size of problem and its solution

• More than 5000 LOC
• Size of team, more than one person often tens or hundreds of people

Question 8

What is Cost dimension?

Answer 8

Cost of the problem

- Minimal cost, high productivity

Question 9

What is Quality dimension?

Answer 9

Quality of the solution

- Suitability, Maintainability, Extensibility, Reliability, Dependability, Efficiency

Question 10

What is Lifetime dimension?

Answer 10

Lifetime of the system

- A system that endures and exceeds the lifetime of involvement of original developers

Question 11

What is Measurability dimension?

Answer 11

Measurability

- Based on the evidence provided by concrete metrics

Question 12

What is Repeatability dimension?

Answer 12

Capable of achieving the same result with the same constraints and process

Question 13

What is Reusability dimension?

Answer 13

Capable of reusing and building on existing artefacts to solve similar problems

Question 14

Software Trade-Off Triangle?

Answer 14

Schedule
Cost
Product

Question 15

What do Software Engineers do?

Answer 15

1. Engineers carry out a task by making series of decisions.
2. Engineers measure things, they use approximations based on experience and empirical data.
3. Engineers emphasize the use of a disciplined process when creating a design and can operate effectively as part of team in doing so.
4. Engineers can have multiple roles: research, development, design, production, testing, construction.

Question 16

Why is Software Engineering difficult?

Answer 16

Cognitive Constraints
Organizational Constraints
Resource Constraints

Question 17

Cognitive Constraints?

Answer 17

Intangibility
Complexity
Indeterminacy
Diversity
Polymorphism
Inexpressiveness
Inexplicit Embodiment
Unquantifiable Quality

Question 18

Organizational Constraints?

Answer 18

Time Dependency
Conservative Productivity
Labour-Time Interlock

Question 19

Resource Constraints?

Answer 19

Cost
Human Dependency
Hardware Dependency

Question 20

What is good software?

Answer 20

8 -ilities

1. Functional Suitability
2. Usability
3. Maintainability
4. Reliability
5. Security
6. Performance Efficiency
7. Compatibility
8. Portability

Question 21

Functional Suitability?

Answer 21

Completeness, correctness, appropriateness.

Question 22

Usability?

Answer 22

Appropriateness recognizability, learnability, operability, user error protection, user interface aesthetics, accessibility.

Question 23

Maintainability?

Answer 23

Modularity, reusability, analysability, modifiability, testability

Question 24

Reliability?

Answer 24

Maturity, availability, fault-tolerance, recoverability

Question 25

Security?

Answer 25

Confidentiality, integrity, non-repudiation, accountability

Question 26

Performance Efficiency?

Answer 26

Time behaviour, resource utilization, capacity

Question 27

Compatibility?

Answer 27

Co-existence, interoperability

Question 28

Portability?

Answer 28

Adaptability, installability, replaceability

Question 29

Software Engineering Activities?

Answer 29

``` Requirements Analysis and Definition Software Design Programming and Dev Testing QC and QA Project Management ```

Question 30

Requirements activities produce?

Answer 30

The use-case model artifact

Question 31

Design activities produce?

Answer 31

The design model artifact

Question 32

Implementation activities produce?

Answer 32

Code, test-cases, documentation

Question 33

Methodology is?

Answer 33

the recipe, the steps to be followed in order to produce the artifacts of the given activity

Question 34

Project Management Methodologies?

Answer 34

Iterative, spiral, waterfall, SCRUM

Question 35

Requirement Methodologies?

Answer 35

Use-cases, functional specification, DFDs

Question 36

Design Methodologies?

Answer 36

Object-Oriented Analysis and Design, Structured Design, Component-Oriented Design, Service-Oriented Design

Question 37

Implementation Methodologies?

Answer 37

Object-Oriented Programming, Structured Programming, Functional Programming, Test-Driven Development

Question 38

Foundations of Software Engineering?

Answer 38

Theoretical and Organizational

Question 39

Theoretical Foundations?

Answer 39

``` Philosophical Computing Mathematical Linguistic Information ```

Question 40

Organizational Foundations?

Answer 40

``` Engineering Cognitive Informatics System Science Management Science Economics Sociology ```

Question 41

Diversity of Software Systems?

Answer 41

``` Stand-Alone Interactive, transaction based Embedded control systems Batch processing systems Entertainment Systems ```

Question 42

Software Engineering Ethics?

Answer 42

``` Public Client and Employer Product Judgement Management Profession Colleagues Self ```