chapter 2

Question 1

what is capability maturity model?

Answer 1

is a benchmark that measures the maturity of an organizations software process.

Question 2

define the 5 levels of CMM.

Answer 2

• initial - 70
• repeated - 15
• defined - 10
• managed - 5
• optimized - 1

Question 3

which level of CMM is characterized by chaotic and inconsistent software process?

Answer 3

initial

Question 4

at repeatable level, what management practices are in place?

Answer 4

PR Can Tell Quality
- project planning
- req mg’t
- configuration mg’t
- tracking & oversight
- quality assurance

Question 5

at what CMM level, are the organizations processes; documented, standardized & organized?

Answer 5

• defined

Question 6

at defined level, what management practices are in place?

Answer 6

Please Prepare Precisely for IT
- peer review
- process focus
- process definition
- intergroup communication
- training

Question 7

at what CMM level, are processes controlled using quantitative measurements?

Answer 7

• managed

Question 8

at what CMM level, is the main focus the continuous improvement of performance?

Answer 8

optimized

Question 9

what is a software process model?

Answer 9

• a method to divide a software process into distinct phases and describe activities performed at each stage.

Question 10

_______________ is an abstract representation of a software dev’t process?

Answer 10

software process model

Question 11

what things does a software process model define?

Answer 11

Thanks to Inputs / Outputs Calculators Function
- tasks
- inputs & outputs for tasks
- conditions for tasks
- flow & sequence for tasks

Question 12

what process model takes a linear sequential flow?

Answer 12

waterfall model

Question 13

what triggers the beginning of a new phase in waterfall model?

Answer 13

• no phase overlaps, so the end of a previous phase.

Question 14

what are the stages in waterfall model?

Answer 14

• reqs
• design
• dev’t
• test
• deployment
• maintenance

Question 15

what are the advantages of waterfall model?

Answer 15

• clear milestones
• structure & stability
• easy to use
• good management control
• when quality > cost / schedule

Question 16

what are the disadvantages of waterfall model?

Answer 16

• no user preview
• reqs must be known
• future deliverables are frozen
• false sense of progress
• integration happens at the end
• linear instead of iterative

Question 17

when to use waterfall model?

Answer 17

• clear reqs
• clear technology
• clear product definition
• creating new system for existing product
• porting an existing system to new platform

Question 18

which process model is characterized by rigidity?

Answer 18

waterfall

Question 19

which process model is characterized by “quick & dirty” methods.

Answer 19

structured evolutionary prototyping model

Question 20

what is prototyping?

Answer 20

building a software product that displays the functionality of the product but not the actual logic

Question 21

what are the steps in SEPM?

Answer 21

• develop project plan
• create partial model
• specify reqs for partial model
• develop prototype
• demonstrate prototype
• repeat

Question 22

what are advantages of SEPM?

Answer 22

• clear signs of progress
• user feedback
• accurate end product

Question 23

what are disadvantages of SEPM?

Answer 23

• “code & fix”
• “quick & dirty”
• maintainability is overlooked
• user may want prototype delivered
• loop may be never ending

Question 24

when to use SEPM?

Answer 24

• unclear reqs
• new dev’t
• UI dev’t
• OO dev’t
• short demonstrations

Question 25

which model provides high quality with reduced time?

Answer 25

RAD model

Question 26

_________ uses minimal planning in favor of rapid prototyping?

Answer 26

RAD model

Question 27

what are the phases of RAD model?

Answer 27

R U Coming to Class - req planning - user description - construction - cutover

Question 28

what is used to manage risk of cost & schedule in RAD model?

Answer 28

time-box approach

Question 29

what are the advantages of RAD?

Answer 29

- lower cost - time box - user feedback - from documentation to code

Question 30

what are disadvantages of RAD?

Answer 30

- quick response to users - commitment to rapid activities - requires modularization - unachieved closure - hard to use with legacy systems

Question 31

when to use RAD?

Answer 31

- reasonably known reqs - system modularization - time box - user involvement - low technical skill - low performance - incremental progress

Question 32

what 2 things does spiral SDLC model combine?

Answer 32

risk analysis of RAD & linear sequential flow of waterfall

Question 33

at which stage of the spiral model are all proposed alternatives analyzed for risk?

Answer 33

identify & resolve risk

Question 34

at what stage of the spiral model are prototypes built?

Answer 34

identify & resolve risk

Question 35

at what stage of the spiral model are features like designing and code reviews implemented?

Answer 35

develop next version

Question 36

at what stage of the spiral model does customer evaluation take place?

Answer 36

plan next phase

Question 37

what are the phases of the spiral model?

Answer 37

1. define obj, constraints & alt 2. identify & resolve risks 3. develop next version 4. plan next phase

Question 38

what are advantages of spiral model?

Answer 38

- early risk indications - frequent cost assessment - early dev't of risky features - design doesn't need to be perfect - user feedback

Question 39

what are disadvantages of spiral model?

Answer 39

- unclear milestones - requires risk analyst - complex model - excessive for small projects - reassignment of developers during non - dev'tal phases

Question 40

when to use spiral model?

Answer 40

- med - high risk projects - complex reqs - unknown reqs - new product - strict budget & risk evaluation - long term commitment