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SPM > chapter 3 > Flashcards

chapter 3 Flashcards

1
Q

define estimation.

A

is the process of reliably predicting various parameters of a product

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2
Q

what are the needs for estimation?

A
  • feasibility
  • control
  • confidence
  • trade-off
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3
Q

what are elements of a sound estimate?

A

WE Like Cooking
- WBS
- effort estimate
- list of assumptions
- consensus among team

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4
Q

mention problems of estimation.

A

u can cook clean = p right
- uniqueness of software
- constraints
- customer reqs
- change in technology
- productivity
- resource

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5
Q

mention approaches of estimation.

A
  • ad hoc
  • analogy
  • expert judgment
  • empirical model
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6
Q

what are the 2 approaches in expert judgemnet?

A
  • delphi & wideband delphi
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7
Q

_______ is an expert survery in 2 or more rounds?

A

delphi

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8
Q

delphi approach is aka?

A

Non consecutive group consensus

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9
Q

in delphi approach experts make estimates how?

A

anonymously

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10
Q

wideband delohi is aka?

A

consultive group consensus

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11
Q

what are the steps in wide band delphi?

A
  • choose team
  • kickoff meeting
  • indiv prep
  • estimation session
  • assemble tasks
  • review results
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12
Q

what are the 2 approaches in ad hoc?

A
  • pricing to win
    -parkison’s law
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13
Q

what is empirical model?

A
  • cost estimation based on available data & skill
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14
Q

emperical model predicts effort as a fucntion of ______

A

LOC

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15
Q

parameter values of empirical models tend to be ______

A

organization dependent

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16
Q

what are the 3 catagories of projects in COCOMO?

A
  • simple - organic small
  • intermidiate - semi-detached
  • complex - embedded large
17
Q

what is a man-month estimate?

A

unit of work done by 1 man in 1 month

18
Q

COCOMO estimates effort in terms of?

A

man-month

19
Q

staffing reqs are small during?

A
  • reqs & design
  • final phases
20
Q

staffing reqs is maximum during?

A

Implementation & testing

21
Q

what are the 3 methods to determine financial value of a project?

A
  • NPVA
  • ROI
  • PBA
22
Q

how does NPVA calculate?

A

calculates monetary gain or loss by discounting all future cash outflows & inflows to present point in time

23
Q

higher NPVA is bad

A

false

24
Q

NPVA calculates ______ with ______ for each period of an investment?

A

cost with benefit

25
Q

what is used to evaluate efficiency of an investment?

A

ROI

26
Q

how does ROI work?

A

by measuring amount of return relative to investment cost

27
Q

what is payback analysis?

A

mathematical methodology used to determine payback period for an investment

28
Q

what is payback period?

A

amount of time it takes to recoup investment in net cash flows

29
Q

when does payback occur?

A

when cumulative benefits & cost are greater than 0

SPM (7 decks)

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