Models for Software development

Question 1

V-Model for development of mechatronic components/products

Answer 1

Skript Page 27. Describe with own words

Question 2

What is prototyping(software development)?

Answer 2

• activity of creating prototypes of software applications (incomplete versions)
• activity compatible to other fields
• only simulates a few aspects
• valuable feedback from users early in project
• client/contractor can compare expectations
• improve scheduling

Question 3

How does an incremental model work?

Answer 3

• series of releases of “increments”
• each increment provides more functionalities
• functions of next increment depends on customer feedback on last increment
• agile process model

STEPS:
Analysis, design, code, test

Question 4

Characteristics of of an incremental model

Answer 4

• System is broken down into many mini development projects
• Partial systems are built to produce the final system
• Highest priority requirements get implemented first
• The requirement of a segment is frozen once the incremented segment is developed

Question 5

Advantages of incremental modeling

Answer 5

• after each iteration, regression testing should be conducted
• during this testing, faulty elements of the software can be quickly identified because few changes are made within any single iteration.
• it is generally easier to test and debug than other methods of software development because relatively smaller changes are made during each iteration
• customer can respond to features and review the product for any needed or useful changes
• initial product delivery is faster and costs less.

Question 6

Disadvantages of incremental modeling

Answer 6

• resulting cost may go beyond the cost of the organization
• as additional functionality is added to the product, problems may arise related to system architecture
which were not evident in earlier prototypes

Question 7

Waterfall development

Answer 7

• linear sequential design approach
• less iterative and flexible
• development in one direction
• originated on manufacturing and construction industries (classic approach)

Question 8

Agile software development

Answer 8

• equirements and solutions evolve through the collaborative effort of self-organizing, cross-functional teams and their customer
• it advocates adaptive planning, evolutionary development, early delivery, and continual improvement, and it encourages rapid and flexible response to change