Ergonomic Analysis of the Cornell Library Collaborative Learning Computer Laboratory Overview of Presentation: Environment of CL3 Physical Arrangement of CL3 Physical Arrangement of CL3

Ergonomic Analysis of the Cornell Library Collaborative Learning Computer Laboratory Overview of Presentation: Environment of CL3 Physical Arrangement of CL3 Physical Arrangement of CL3

Ergonomic Analysis of the Cornell Library Collaborative Learning Computer Laboratory Overview of Presentation: Environment of CL3 Physical Arrangement of CL3 Physical Arrangement of CL3

Michaels, Peter, News Director has reference to this Academic Journal, PHwiki organized this Journal Ergonomic Analysis of the Cornell Library Collaborative Learning Computer Laboratory Project conducted by DEA 470 (Ian Colahan; Iris Dulay; Jessica Elias; Yachen Hwang; Kaori Ito; Jennifer Kim; Erin Lawler; Chiu Wah Jodi Lee; Elizabeth Popolo, Xin Wang) Under the supervision of Professor Alan Hedge in addition to Melissa Braun Spring 2006 Overview of Presentation: Our three main interests in CL3 The physical arrangement in addition to ambient environment as it relates to the intent of CL3 The dynamics of collaboration in CL3 The preferences of current users in CL3 Environment of CL3

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Physical Arrangement of CL3 Dimensions of the station 2.3ft 2.2 ft Adjustable Min: 1.3ft Max: 1.7ft 1.6ft 1.4ft STANDARD REQUIREMENTS Desk height: 2.3ft-2.5ft above the floor Chair height: 1.3ft – 1.7ft above the floor Leg room: 2.5ft wide by 1.6ft deep by 2.25ft high Work area top: 2.5ft by 5ft Top of monitor casing 2-3 inches above eye level Physical Arrangement of CL3 Various sitting arrangements 1) Facing as long as wards in addition to looking at both screens 95% man 5% woman Physical Arrangement of CL3 2) Sitting to one side in addition to looking as long as wards 95% man 5% woman Top view Front view

Physical Arrangement of CL3 3) Sitting to one side in addition to rotate to look at the screens at an angle 95% man 5% woman Monitors angled at 45 degrees Physical Arrangement of CL3 Survey Results (n=57) Ability to customize work area by moving chairs, tables, in addition to computers How often do you rearrange the computer tables in CL3 Reasons to move table 31.5% Create better working station 28% To improve collaboration 33% Never moved tables

Survey Results (n=57) If you have never rearranged the tables in CL3 be as long as e, why not 37% I didn’t need to 22% Didn’t know it was allowed 15% Didn’t know it was movable Would you move the table more often if: 30% Fewer wires 29% Easier to plug in addition to unplug wires in addition to cables 19% Signs instructing them to move (i.e. How to move tables & re-plug, r in addition to om positioning of stations) 19% tables were lighter 22% still wouldn’t move How did you find out the tables were movable 33% Figured it out themselves 17.5% Was told by instructor 17.5% Saw other people move 14% Didn’t know they are movable Physical Arrangement of CL3 Desk Moving Force Requirement: A B C D E F G H Liberty Mutual Manual Table Pushing Guideline: RULA (Rapid Upper Limb Assessment) Score: 2 (Acceptable) Score: 3 Investigate Further Score: 4 Investigate further Score: 6 Investigate Further in addition to Change Soon

Sound Level Analysis The survey concluded that sound was not a problem or concern as long as CL3 users. CL3 Uris Computer Lab Average sound level is higher in the Uris computer lab under all conditions. Sound Level Analysis Unless there is a class, CL3 is relatively quiet. More talking in addition to interaction can be seen in the Uris computer lounge at all times. Possible explanations include its open/bright atmosphere, ability as long as people to walk through to get to/from the Cocktail Lounge, in addition to to the shape of the computer desks. CL3 desks: sitting space closes in Uris desks: sitting space open Survey Results

Survey Results Survey Results Collaboration in CL3

Collaboration in CL3 Questions to Answer: To what extent do people collaborate in CL3 How does CL3 compare to other collaborative spaces on campus. In this case Uris computer area (The Runway). Collaborative Data Gathering Methodology Used a combination of survey questions in addition to observational methods Survey Questions provided easily comparable results in addition to detailed data Observations provided data on the frequency of various types of collaborative actions Data was gathered in CL3 in addition to in the Uris Computer area as long as comparison Survey results Group size ranges from 2 to 9. 66% of those surveyed worked in groups of 2 or 3. 16% of respondents worked alone. 56% spend ‘most of the group time’ in task related conversation.

Time spent in collaborative activity in CL3 versus other computer labs 46.5% spend a lot of time collaborating in a CL3 class, 13 % in other computer labs Survey Analysis Most people do spend time collaborating while in a class in CL3 During group collaborative periods, there was a high level of conversation between members Observations of CL3 verses Uris Looked at the frequency of talking, pointing, keying, in addition to mousing of each member in CL3 in addition to comparison groups in a Uris computer area

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Finalized Observation Chart CL3 & Uris observation result Talking, pointing at screens in addition to papers are counted as interactions Mean number of interactions per minute in CL3 in addition to Uris are similar (5.8 vs. 5.85) Mean coefficient of deviation as long as the number of interactions in two labs are 8.56% in addition to 5.97% respectively. CL3 & Uris observation result Only 2 groups out of 7 from our observation used both keyboards in addition to mice Dominant use of keyboard in addition to mouse was observed both in CL3 in addition to Uris Usually there are more people in Uris lab.

Conclusions on Collaboration Survey data suggest that CL3 has provided an effective place as long as collaboration Observations suggest that the Uris computer area provides an even better place as long as collaboration Reasoning: Uris computer area has more natural exchange of in as long as mation as people walk through the area, there is naturally more noise of conversations being held, in addition to the furniture is more easily arranged User Preference in CL3

Suggestions as long as Improving CL3 Provide accurate signage concerning: The hours, the equipment available, in addition to the ways to move workstations Provide more in as long as mation on resources, software in addition to equipment available in CL3 Place info cards on the workstations, hang posters, etc. Increase the hours of operation in addition to staffing to accommodate the dem in addition to In as long as m users that this is a collaborative space in addition to not just a typical computer lab Increase the number of workstations or integrate laptop use into the space Improve printing options (i.e. 11” x 17”) Thank You

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