Chp 2 - Structured Methodologies

Question 1

How is development organized in structured methodologies?

Answer 1

Organized into phases with deliverables and milestones

Question 2

When were structured methodologies developed?

Answer 2

1970s

Question 3

What is another name for structured methodologies?

Answer 3

Traditional methodologies

Question 4

What are requirements like in structured methodologies?

Answer 4

Clear and fixed

Question 5

What do structured methodologies focus on?

Answer 5

Error free product

Question 6

What kind of rules do structured methodologies enforce?

Answer 6

Rigid and strict rules

Question 7

What do structured methodologies emphasize?

Answer 7

Full documentation

Question 8

List out 3 example of traditional/structured methodologies

Answer 8

1. Waterfall Model
2. Structured Systems Analysis and Design Methodology ( SSADM )
3. V-Model

Question 9

Who introduced the Waterfall methodology?

Answer 9

Dr. Winston W. Royce

Question 10

When was the Waterfall methodology introduced?

Answer 10

1970s

Question 11

What characterizes the Waterfall development process?

Answer 11

Highly structured and rigid sequential development

Question 12

What does Waterfall promote?

Answer 12

Quality control of process and product

Question 13

What does Waterfall emphasize?

Answer 13

Good documentation

Question 14

When can one move to the next phase in Waterfall?

Answer 14

Only after completing and perfecting the preceding phase

Question 15

What are the phases of the Waterfall methodology? ( 6 )

Answer 15

1. Requirements
2. Design
3. Implementation
4. Testing
5. Deployment
6. Maintenance

Question 16

What document captures all system requirements?

Answer 16

System Requirement Specification (SRS) Phases inside Requirement Gathering and Analysis

Question 17

What document is required in System Design?

Answer 17

System Requirement Specification (SRS)

Question 18

What does System Design helps?

Answer 18

Specifying hardware and system requirements and helps in defining overall system architecture

Question 19

What is the system being developed in Implementation?

Answer 19

Units

Which are integrated at the next phase ( Integration and Testing )

Question 20

What is Unit Testing?

Answer 20

Small Units tested for its functionality

Question 21

What document captures all possible requirements of the system to be developed?

Integration and Testing in Waterfall Model

Answer 21

System Requirement Specification (SRS)

Question 22

What is done in Integration and Testing?

Answer 22

Integrate small units and perform testing

Question 23

When was SSADM popular?

Answer 23

Late 1980s ( Popular at UK )

Question 24

What approach does SSADM use?

Answer 24

Rigid and document-led approach to system design

Question 25

Up to which stage does SSADM ends?

Answer 25

Design stage ## Footnote Outsource to other developers

Question 26

What strategies that SSADM provides?

Answer 26

Has strategies to align business needs with system development

Question 27

What projects suit SSADM?

Answer 27

Complex database design

Question 28

What are the SSADM phases? ( 5 )

Answer 28

1. Feasibility Study 2. Requirements Analysis 3. Requirements Specification 4. Logical System Specification 5. Physical Design

Question 29

What feasibility aspects are assessed?

Answer 29

Technical economic operational and risk feasibility

Question 30

What does investigation document in SSADM?

Answer 30

Current system and requirements catalogue

Question 31

What are Business System Options?

Answer 31

Alternative system development approaches for user choice

Question 32

What does definition of requirements refine?

Answer 32

Requirements catalog data and process models

Question 33

What do technical system options evaluate?

Answer 33

Best hardware/software to meet requirements

Question 34

What does logical design specify?

Answer 34

Processing data and HCI ( Human Computer Interfaces) dialogues

Question 35

What does physical design cover?

Answer 35

Specify physical data

Question 36

Name 3 design technique in SSADM.

Answer 36

1. Logical Data Modeling 2. Data Flow Modeling 3. Entity Event Modeling

Question 37

From which model is V-Model derived and modified?

Answer 37

Waterfall Model

Question 38

What do the horizontal and vertical of the V-Model represent?

Answer 38

Time (horizontal) and system levels (vertical)

Question 39

List out 3 tasks for Project Definition on V-Model Phase

Answer 39

1. Concept of Operation 2. Requirements and Architecture 3. Detailed Design | At the \ of V

Question 40

List out 3 task for Project Test and Integration on V-Model Phase

Answer 40

1. Integration Test and Verification 2. System Verification and Validation 3. Operation and Maintenance | At the / of V

Question 41

What phases mirror testing in the V-Model?

Answer 41

Concept ops Requirements Design Implementation Testing Maintenance

Question 42

What approach does the V-Model take?

Answer 42

Top-down approach with associated testing phases

Question 43

List out 4 testing that is conducted using V-Model Techniques

Answer 43

1. Unit Testing 2. Integration Testing 3. System Testing 4. User Acceptance Testing ETC

Question 44

List out 3 Strengths with Structured Methodologies

Answer 44

1. A hierarchical approach tends to generate well-organized systems. Its step-by-step approach. 2. Simplifies project management, risk management, ad resource management 3. Structured methodology’s tools and techniques can all be used to support other methodologies.

Question 45

List out 5 Problems with Structured Methodologies

Answer 45

1. Rigid phases, discourage skipping of unimportant steps. 2. Emphasize of process and product quality rather than customer satisfaction 3. Requirement need to be defined at the beginning of the project and not encouraged to change towards the end. 4. Cost and time is often unpredictable for large projects. 5. Too many ‘red-tapes’, wasting time and resources | ( Red taps -> Approval Unecessary Process )