SAB11#55_ESTIMATE_ACTIVITIES DURATIONS

ESTIMATE ACTIVITY DURATIONS IS THE PROCESS OF ESTIMATING THE NUMBER OF WORK PERIODS NEEDED TO COMPLETE INDIVIDUAL ACTIVITIES WITH ESTIMATED RESOURCES
1. ROLE OF THE PROJECT MANAGER IN ESTIMATING IS TO:
  1. 1. PROVIDE THE TEAM WITH ENOUGH INFORMATION TO PROPERLY ESTIMATE EACH ACTIVITY
  2. 2. LET THOSE DOING THE ESTIMATING KNOW HOW REFINED THEIR ESTIMATES MUST BE
  3. 3. COMPLETE A SANITY CHECK OF THE ESTIMATES
  4. 4. PREVENT PADDING.PADDING IS EXTRA TIME OR COST ADDED TO AN ESTIMATE BECAUSE THE ESTIMATOR DOES NOT HAVE ENOUGH INFORMATION
  5. 5. FORMULATE A RESERVE
  6. 6. MAKE ASSURE ASSUMPTIONS MADE DURING ETIMATING ARE RECORDED FOR LATER REVIEW
1. SHEDULE MANAGEMENT PLAN
2. ACTIVITY LIST
3. ACTIVITY ATRIBUTESS
4.ACTIVITY RESOURCES REQUIREMENTS
5. RESOURCES CALENDARS
6. PROJECT SCOPE STAMENTS
7. RISK REGISTER
8.RESOURCES BREAKDOWN
9. ENTERRPRISE ENVIRONMENTAL FACTORS
10. ORGANIZATIONAL PROCESS ASSETS
1. EXPERT JUDGMENTS. GUIDED BY HISTORICAL INFORMATION FROM SIMILAR PROJECTS
2. ANALOGOUS ESTIMATING. TO ESTIMATE COST OF AN ACTIVITY OF A PROJECT OF HISTORICAL DATA. USED WHEN THERE IS LIMITED INFORMATION. GENERALLY NOT AS ACCURATE AS OTHER ESTIMATING TECHIQUES
4. THREE POINT ESTIMATING. TRIANGULAR DISTRIBUTION AVERAGE (P+O+M)/3 P=PESSIMISTIC, O=OPTIMISTIC,M=MAS PROBABLE. TRIANGULAR DISTRIBUTION BETA (P+4M+O)/6 BETA ACTIVITY STANDARD DEVIATION =P-O/6
3.PARAMETRIC ESTIMATING. HISTORICAL RECORDS FROM PREVIOUS PROJECTS. USES AN STATISTICAL RELATIONSHIP BETWEEN HISTORICAL DATA AND OTHER VARIABLES
5. GROUP DECISION-MAKING TECNIQUES. USES BRAINSTORMING, AND DELPHI.
6. RESERVE ANALYSIS . TIMES RESERVES IN THE GLOBAL SCHEDULE F THE PROJECT.
1. ACTIVITY DURATION ESTIMATES
2. PROJECT DOCUMENTS UPDATES

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SAB11#55_ESTIMATE_ACTIVITIES DURATIONS

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