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MIT 2 009 - Lecture Notes

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the good news is that you’re the pilot!Michael Altshuler!2.009 "Product engineering processes!the bad news is time flies!2.009 Product engineering processes"Today"!time estimation resource budgeting"scheduling project management !!But first"a mini quiz!!name on index card!1 minute!form follows function means?!"“depends. is it carrying a coconut?”: Hans Susilo!Mini quiz "ii) power of small bird to fly!about right!Time estimation"Origami ball experiment!put your name and time estimate on the handout!do not look at the back side of the page!!!when I start timer, turn over the handout!make the ball!record your actual time (no fudging please)!go to course website !enter and submit data!hand in paper estimate!!Time estimation"Experiment results!Time estimation"Take-home message!task time estimate = expected time x multiplier!!multiplier f(familiarity, complexity, process uncertainty)!!Time estimation"Visual model: 9 hours!Time estimation"Preliminary solid model: 6 hours!Time estimation"Sketch model: 2.5 hours!Time estimation"String dynamometer: 20 hours!Time estimation"Robot rabbit mockup: 30 hours!1953!1962!space program"mercury 1958-63!Electric scooter"Electric scooter prototype: 110 hours fabrication + lead time!all examples:! fabrication time only!!Project scheduling"Step 1: task list and milestones!total: 23 days! Milestones team review Oct. 15 mockup review Oct. 16 time to review: 6 days!by project (course/program)!by development phase (system integrators)!why 6 days?!Project scheduling"Step 2: task sequencing!sequential!!refine concept! resolve risk 1!refine concept!resolve risk 1!together!refine concept!resolve risk 1!parallel!Project scheduling"Step 2: sequence based upon interdependencies! refine needs refine benchmarking refine attributes refine contract refine concept resolve risk 1 resolve risk 2 refine needs X refine benchmarking X refine attributes X X X refine contract X X X X refine concept X X X X resolve risk 1 X X resolve risk 2 X X need info (row)!provide info (col.)!Project scheduling"Step 3: Visualization"!team review!Gantt charts (tasks, resources, milestones)!Project scheduling"Step 3: Visualization!Critical path"Pert charts (program evaluation and review technique)!needs: 1!benchmark: 1!contract: 1/2!attributes: 1/2!concept: 6!risk 1: 6!risk 2: 6!Project scheduling"Managing a deadline crunch!reallocate resources to critical path "(eliminate secondary items)!eliminate parts of critical path!!start early!manage/change project scope!freeze decisions based on timeline!increase work load!outsource or engage additional resources!Scheduling"Step 1: task list and milestones!by project!by milestone!! Milestones task force progress review Oct. 14 team review Oct. 15 by sub-problem: risk 1 (weekly task forces)!Section schedule preparation"Gantt chart through mockup review!list key milestones towards the review!list tasks and estimate completion times!sequence tasks based upon dependencies!allocate resources and draft a Gantt chart!!!!!!!draw Gantt chart on team white board for each concept "use schedules from now on!Managing large projects"keeping track of where things are at!is it hard to keep on top of progress, tasks, status, who is doing what?!do you love checking email?!!Managing large projects"team challenge!!use project management site to manage tasks now through mockup review!!be the team to use it most effectively!something special!!not make work, it’s better work!Wrap up"miscellaneous items!Gantt chart software will be linked on home page!!peer review open until 9 PM Today!!notebooks this week!!read chapter 6 (specs) for


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MIT 2 009 - Lecture Notes

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