CEng 414 Lecture 5 Planning

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CEng 414Lecture 5Planning
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Planning

• Detailed Planning
• Estimating
• Identifying dependencies
• Constructing the dependency network
• Assigning responsibilities
• Allocatining resources
• Producing a Gannt chart
• Refining the plan

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Planning

• Principles of estimating
• Estimates should be in days-effort ( man-days)
• Estimates should not allow for contingency it
  should be applied later.
• Estimates should be honest.
• Assign individual responsibilities to tasks.
• The available skill and experience levels must be
  considered.

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Planning

• Principles of estimating -2
• The procedure and assumptions must be documented.
• The procedure and assumptions must be revisited
  later to make sure they are valid.
• Always make sure the estimates are reasonable.

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Planning

• Estimating done by
• Using historical data
• Using relative time
• Using parameters

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Planning

• Dependency Networks
• To determine the CRITICAL PATH
• The shortest time in which the project can be
  completed.
• To identify risks
• To identify periods of overload / underload.
• To enhance understanding of the project.

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Planning

• Calculating task duration
• Determine the optimum number of staff to execute
  the task efficiently.
• Determine the number of available competent
  personnel.
• Determine their availability ( in ) taking into
  account other commitments, holidays, etc.

Days Effort Duration -------------------------
-------------- Available staff
Availability ()
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Planning

• Calculating task duration -2

• - - - - - - gt 5 days - - - - - gt
• ATLANTIC OCEAN

- - - - - gt ? - - - - gt
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Planning

• If estimates are too long
• Is the estmator making life easy for himself?
• Lack of experience allowing time?
• UNsecure over-engineered product

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Planning

• Estimates too short
• Over-confident
• Complexity underestimated.
• Product not fully understood / appreciated.
• Assumptions unreasonable.

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Planning

• Calculating task duration -2

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Planning

• Calculating task duration -2

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Planning

• Calculating task duration -2

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Planning

• Calculating task duration -2

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