Appendix
Cost Model for the Scully Project
The cost model uses the following facts, estimates, and assumptions:
Introduction to the History of Art, 112a
-Course offered once every two years; three times in six years
-Number of students enrolled in Scully course = 500/term
-Number of weeks Scully photos available in study space = 9 weeks per term
-Length of term = 14 weeks
-Number of Teaching Fellows for Scully course = 25
-Approximate value/hour of Teaching Fellow time = $20
-Hourly wage for library student staff = $6.46
Staff costs for selection, maintenance, and display of slide and photo images
-1 FTE permanent staff devoted to photo collection = $xx,xxx for salary and benefits
-% of permanent library staff effort devoted to Scully course = x%
-Library student staff devoted to photo collection = 40% of $11,500 = $4,600 at $6.46/hr = 712hrs
-Library student staff devoted to exhibiting Scully photos = 48 hrs/year
-Time spent by Teaching Fellows assembling photo study = 3.5 hr/wk ³ 14 wks = 49 hrs
-Time spent by Teaching Fellows assembling slides for review classes = 56 hrs
Cost to prepare digital images for instructional use
-Number of images in Scully Project = 1,250
-Digitization of images (outsourced) = $2,800
-Change in Scully Project Web site content over 6 years = 20%
-Selection and creation of images (by 2 Teaching Fellows) = $6,200
-Web site design = $1,500
Preservation and access costs for slide, photo, and digital images
-Library student staff hours spent on mending and maintenance of photos = 7 hrs/year
-Disk space required for Scully Project = .855 GB
-Disk space required per volume for Project Open Book = .015 GB
-Scully Project images = 57 Open Book vols
-Digital Storage costs = $2.58/year/Open Book vol
-Digital access costs = $5.67/year/Open Book vol
-Storage and access cost inflation = -13%/year
Study and other space costs
-Number of items in photo collection = 182,432
-Number of Scully photos mounted in study space = 200 for midterm; 400 for final
-NSF of photo collection in Street Hall = 1,733
-NSF collection shelving for Scully photos = 400/182,432 ³ (1,733 - 500) = 2.7
-NSF of photo study space = 2,019 + .25 ³ 1500 = 2,394
-% of photo study space devoted to Scully photos per term = 20%
-NSF of photo study space available for Scully photos = 2,394 ³ .2 ³ (9/28) = 154
-NSF of photo study space utilized during term = 154 ³ 75% = 116
-Annual cost of space maintenance = $7 NSF
-Cost of new construction = $300 NSF
-Amortization of capital costs at 8% over 35 yrs = $85.81 per $1,000
-Capital cost of converting existing classroom for digital display = $50,000 depreciated over 6 years
-Maintenance of digital classroom hardware and software = 10% of capital cost/year = $5,000/year
-Availability of digital classroom = 8 class hours ³ 5 days/wk ³ 28 wks ³ .8 efficiency factor = 896 sessions/yr
-Need by Scully grad assistants for digital classroom sessions = 25 ³ 3 = 75 sessions/yr = 8.3% of available sessions
-Annual cost of maintaining a network connection = $300
-% use of network connection for study of Scully Web site = 2%