Chapter 1

Question 1

Roles of the Systems Analyst

- name 3 primary roles

Answer 1

The analyst must be able to work with people of all descriptions and be experienced in working with computers
Three primary roles:
1) consultant
2) supporting expert
3) agent of change

Question 2

Qualities of the Systems Analyst

Answer 2

• Problem solver
• Communicator
• Strong personal and professional ethics
• Self-disciplined and self-motivated

Question 3

What is the Systems Development Life Cycle (SDLC)?

Answer 3

The systems development life cycle is a phased approach to solving business problems
Developed through the use of a specific cycle of analyst and user activities
Each phase has unique user activities

Question 4

Name the 7 phases of SDLC

Answer 4

1. Identifying problems, opportunities, and objectives
2. Determining human information requirements
3. Analysing system needs
4. Designing the recommended system
5. Developing and documenting software
6. Testing and maintaining the system
7. Implementing and evaluating the system

Question 5

Information

Answer 5

• fuels business
• key resources that determines success or failure of business
• must be managed correctly
• must be obtained, entered, stored, secured, processed, retrieved, and made available

Question 6

Need for systems analysis and design

Answer 6

• Installing a system without proper planning can result in user dissatisfaction and disuse
• Lends structure to the analysis and design of information systems
• User involvement is a critical part of successful development of computer
  systems

Question 7

Roles of systems analyst

Answer 7

1. be able to work with people of all descriptions

2. be experienced with computers

Question 8

Three primary roles of systems analyst

Answer 8

1. consultant
2. supporting expert
3. agent of change

Question 9

Consultant

Answer 9

ability and knowledge to guide management and other stakeholders to the correct solution

Question 10

Qualities of systems analyst

Answer 10

• problem solver
• communicator
• strong personal and professional ethics
• self disciplined and self motivated

Question 11

Systems development life cycle

Answer 11

Phased approach to solving business problems

Developed through cycle of analyst and user activities

Question 12

7 phases of Systems Development Life Cycle

Answer 12

1. Identifying problems, opportunities and objectives
2. Determining human information requirements
3. Analysing system needs
4. Designing recommended system
5. Developing and documenting software
6. Testing and maintaining system
7. Implementing and evaluating system

Question 13

Reasons maintenance is performed

Answer 13

• remove software errors

- enhance existing software

Question 14

why is software enhanced?

Answer 14

• includes additional features
• address business changes over time
• address hardware and software changes

Question 15

What are CASE tools?

Answer 15

Computer aided software engineering
Productivity tools for systems analysts that have been created explicitly to
improve their routine work through the use of automated support

Question 16

Why use CASE tools?

Answer 16

• improve analyst-user communication
• help support modelling functional requirements
• assist in drawing project boundaries

Question 17

what is the agile approach?

Answer 17

a software development approach based on

• values
• principles
• core principles

Question 18

4 agile values

Answer 18

1. communication
2. simplicity
3. feedback
4. courage

Question 19

5 states of the agile modelling development process?

Answer 19

1. exploration
2. planning
3. iterations to first release
4. productionising
5. maintenance

Question 20

agile modelling development process: exploration

Answer 20

• assemble team
• assess skills
• examine potential technology
• experiment with writing user stories
• playful and curious attitude

Question 21

agile modelling development process: planning

Answer 21

• Rules that formulate teams relationship with customer

- Maximize value of the system

Question 22

agile modelling development process: iteration to first release

Answer 22

• testing
• feedback
• change

Question 23

agile modelling development process: productionizing

Answer 23

• product released

- may be improved by adding features

Question 24

agile modelling development process: maintenance

Answer 24

• new features may be added
• Riskier customer suggestions may be considered
• Team members can be rotated

Question 25

What is object oriented systems analysis and design?

Answer 25

- Alternate approach to SDLC - Used for systems that must change rapidly due to a dynamic business environment - Use Unified Modeling Language (UML)

Question 26

steps in UML development process

Answer 26

1. draw use case diagrams 2. write use case scenarios 3. derive activity diagrams from use cases 4. develop sequence diagrams 5. create class diagrams 6. draw state chart diagrams 7. modify diagrams and complete specifications 8. develop and document system

Question 27

what is the use case model?

Answer 27

- Identify the actors and the major events carried out by the actors - Diagram with stick figures showing the actors and arrows showing how the actors relate

Question 28

when to use Systems Development Life Cycle?

Answer 28

- Important to document each step of the way - Management feels comfortable using this method - Adequate resources and time to complete full SDLC - Communiation of how new systems work is important

Question 29

when to use Agile Modelling Development?

Answer 29

- Applications need to be developed quickly - Rescue takes place - Customer is satisfied with incremental improvement

Question 30

When to use Object-oriented Systems Analysis and Design?

Answer 30

- Problems modeled lend themselves to classes - Organization supports UML learning - Systems can be added gradually - Possible to reuse old software - Acceptable to tackle difficult problems first