【正文】 the task on the critical path is critical task Dec. 2023 Wanjun JIANG GSM PKU ? Determine dependencies 1 2 5 6 3 8 7 10 9 4 11 Dec. 2023 Wanjun JIANG GSM PKU 6. Identify staffing ? Internal personnel/skills ? External personnel/skills Dec. 2023 Wanjun JIANG GSM PKU 7. Identify other resources ? Dedicated test configuration ? Laser printers for documentation ? Word processing support ? …... Dec. 2023 Wanjun JIANG GSM PKU 8. Identify utilization rate ? Hours available=2080(52x5x8) ? education 80 ? vacation+holidays 160 ? administration 80 ? personal 80 ? others 80 ? Total nonproductive hours 480 ? Total productive hours 1600 Dec. 2023 Wanjun JIANG GSM PKU ? Utilization vs. Project duration ? (173 hours per month) P r o j e c td u r a t i o nH o u r s / m o n t h U t i l i z a t i o nr a t e173 100% 6 m o n t h s 140 81%6 1 2 m o n t h s 130 75% 1 2 m o n t h s 120 69%Dec. 2023 Wanjun JIANG GSM PKU 9. Determine activities size(utilization 75%) ? Activities work hours weeks ? (30hrs, 6 people) 180 ? 2. Interview standards 160 ? 3. Global interview preparation 80 ? 4. Standards for requirements report(SRR) 60 ? 5. Interviews (20) 640( 16x2 people x20) ? individual preparation 4 ? interview 4 ? minutes 4 ? confirm 4 ? 6. Consolidate data 600 ? 7. Write requirement report 140 ? 8. External design phase plan 80 ? 9. External design standards 60 ? design phase 2023 ? 11. Internal design phase 2023 ? Project total 6000 200 Dec. 2023 Wanjun JIANG GSM PKU activity duration(technical staffing 6) ? Activities work hours weeks duration ? (30hrs, 6 people) 180 ? 2. Interview standards 160 ? 3. Global interview preparation 80 ? 4. Standards for requirements report(SRR) 60 ? 5. Interviews(20) 640( 16x2 people x20) ? individual preparation 4 ? interview 4 ? minutes 4 ? confirm 4 ? 6. Consolidate data 600 ? 7. Write requirement report 140 ? 8. External design phase plan 80 ? 9. External design standards 60 ? design phase 2023 ? 11. Internal design phase 2023 ? Project total 6000 200 Dec. 2023 Wanjun JIANG GSM PKU 11. Develop estimated schedule(requirements phase) ? Dec. 2023 Wanjun JIANG GSM PKU process another view ? Define scope ? Define the products ? Identify technical activities ? Estimates hours for activities ? Add level of effort hours ? Determine dependencies Dec. 2023 Wanjun JIANG GSM PKU ? Identify resources ? Identify staffing ? Identify other resources ? Develop schedule ? Identify utilization rate ? Determine activity size ? Determine activity duration ? Develop estimated schedule Dec. 2023 Wanjun JIANG GSM PKU ? In the end ... Scope Plans Schedule Resources Dec. 2023 Wanjun JIANG GSM PKU P. O. D. ? Introduction ? Key assumption ? Roles responsibilities ? Major products ? Completion criteria ? Estimated schedule ? Estimated cost Dec. 2023 Wanjun JIANG GSM PKU When the process is plete... ? Evaluate risk in the . ? Revisit the process to contain/reduce risk ? Revise outputs accordingly ? Iterate until “ready for project assurance” Dec. 2023 Wanjun JIANG GSM PKU ? “We never have the time to do it right the first time, but we always have time to do it over.” ? “If we don’t have time to do it right the first time, when are we going to have time