Slides 4 + 5 - Quality and Maturity Models

Question 1

Quality Model

Answer 1

● The quality model is the cornerstone of a product or process quality evaluation system.
● Defines relevant qualities and sub-qualities for a defined subject
● Defines, which qualities are important and which are not important
● Sometimes, defines metrics to be used to measure qualities

Question 2

McCall’s Quality Model

Answer 2

• Quality perspectives,
• Quality factors,
• Quality criteria.

Question 3

Maturity model

Answer 3

assesses qualitatively (bewertet qualitativ):
● people/culture
● processes/structures
● technology

represents the maturity in a hierarchical structure

Question 4

Maturity

Answer 4

● Measurement of the ability of an organization for continuous improvement in a particular discipline
● The higher the maturity, the higher are the chances that errors are avoided

Question 5

Goals of CMM

Answer 5

● Applicable to all software development organizations
● The weaknesses, but also the strengths of the process should
become clearly visible
● The assessment should be neutral with respect to the technology
used.

Question 6

Usage of Code Quality Index

Answer 6

● Continuous monitoring of the technical quality
● Quality assurance in outsourced projects
● Assessment of acquired software
● Decisions on new development vs. maintenance

Question 7

Complexity

Answer 7

degree to which a system or component has a design or implementation that is difficult to understand and verify

Question 8

What contributes to complexity?

Was trägt zur Komplexität bei?

Answer 8

● What are the relevant program attributes?

● Does the program size matter?

Question 9

Cognitive Complexity

Answer 9

1. Ignore structures that allow multiple statements to be readably shorthanded into one
   ● switch statements are easy
2. Increment for each break in the linear flow of the code
   ● same as for cyclomatic complexity
3. Increment when flow-breaking structures are nested
   ● increases score for each nesting level
   ● and for jumps