Multitasking is evil
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The document describes a multitasking exercise where participants are asked to complete three projects by either multitasking (switching between projects each row) or not multitasking (completing one column at a time). It then shows scenarios of completing the projects with and without multitasking. Completing the projects without multitasking results in shorter completion times for each individual project, faster overall completion of all projects, and earlier cash flow.
Multitasking is evil
- 1. Clarke.Ching@ge.com Multitasking Exercise - switching cost • The three projects are as follows: Project 1—Write the letters A to J in the first column. Project 2—Write the numbers 1 to 10 in the middle column. Project 3—Write the Roman Numerals I to X in the third column. The end result is three columns filled like this: A | 1 | I B | 2 | II Etc. • Exercise: • Do these projects by multitasking (1 row at a time) • Do these projects by not multitasking (1 column at a time) http://www.stickyminds.com/eNewsletters/Iterations/Default.aspx?eNewsletter=200805#powerbookreview
- 2. Clarke.Ching@ge.com Multitasking Exercise - switching cost is only a tiny bit of the problem
- 3. Clarke.Ching@ge.com Multi-tasking is evil - Eliminate Multitasking A BP1 C D E F G H I J P2 P3 A B C D E F G H I J A B C D E F G H I J 20 weeks 20 weeks 20 weeks £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ Cash Flow: Three projects - no sharing Each task takes 2 weeks to complete x3 x3 x3Resources:
- 4. Clarke.Ching@ge.com When resources are shared across projects? • Too many projects • too many priorities • Too many bosses • Therefore: • Staff must switch between projects • i.e. multitask x1 x1 x1Resources:
- 5. Clarke.Ching@ge.com Scenario: multitasking A x1 x1 x1 B Resources: P1 C D E F G H I J P2 P3 A B C D E F G H I J A B C D E F G H I J 48 weeks 50 weeks 52 weeks £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ Cash Flow:
- 6. Clarke.Ching@ge.com Scenario: not multitasking A x1 x1 x1 B Resources: P1 C D E F G H I J P2 P3 A B C D E F G H I J A B C D E F G H I J 20 weeks 28 weeks 36 weeks £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ £ Cash Flow:
- 7. Clarke.Ching@ge.com Compare • Each project is shorter • All projects finished sooner => capacity increased • Cash flow earlier; faster 2 market, profits up, up, up • Organisation evolves faster A BP1 C D E F G H I J P2 P3 A B C D E F G H I J A B C D E F G H I J 20 weeks 28 weeks 36 weeks A BP1 C D E F G H I J P2 P3 A B C D E F G H I J A B C D E F G H I J 48 weeks 50 weeks 52 weeks Multitasking No Multitasking