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Purpose of analysis: To determine usability problems.

Task Analysis for Java-Pod Coffee Maker. Purpose of analysis: To determine usability problems. Task goal: To make a completed cup of coffee Performance criteria: Easy completion of task using system for the first time Information sources: Participant observation.

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Purpose of analysis: To determine usability problems.

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  1. Task Analysis for Java-Pod Coffee Maker Purpose of analysis: To determine usability problems. Task goal: To make a completed cup of coffee Performance criteria: Easy completion of task using system for the first time Information sources: Participant observation Task Decomposition Diagram: 1. Make a cup of coffee 1. Make a cup of coffee H/M 1.1. Check water 1.5. Add condiments 1.2. Add coffee 1.3. Brew coffee 1.4. Dispense coffee H/M H/M H/M M H

  2. Task Decomposition Diagram: 1.1 Check water 1.1. Check water 1.1.1. Remove reservoir 1.1.2. Fill reservoir 1.1.3. Replace reservoir H/M H H/M

  3. Task Decomposition Diagram: 1.2 Add coffee 1.2. Add coffee 1.2.1. Get pod 1.2.2. Insert pod 1.2.1.1. Open package 1.2.1.2. Remove pod 1.2.2.6. Push lever in 1.2.2.4. Pull lever out 1.2.2.2. Open top compartment 1.2.2.3. Insert pod 1.2.2.1. Pull down lever 1.2.2.5. Close top compartment H H H/M H/M H H/M H/M H/M 1.2.2.2.1. Remove used pod H

  4. Task Decomposition Diagram: 1.3 Brew coffee 1.3. Brew coffee 1.3.1. Check if power on 1.3.2. Select cup size 1.3.3. Position cup 1.3.3. Brew coffee H/M H/M H/M M 1.3.3.1 Get cup 1.3.1.1 Turn power on 1.3.1.2. Wait until ready 1.3.3.2 Put cup under sprout H/M H/M H H/M

  5. Task Decomposition Diagram: 1.5 Add condiments 1.5. Add condiments 1.5.1. Remove cup 1.5.2. Add milk/cream/sugar 1.5.3. Stir coffee H H H

  6. Task: 1.1 Check water

  7. Task: 1.2 Add coffee

  8. Task: 1.3 Brew coffee

  9. Task: 1.4 Dispense coffee

  10. Task: 1.5. Add condiments

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