All other staff impacted by DSpace were categorized into either Principal or
Comprehensive costs according to their estimated allocation. For example, the Associate
Director for Technology and the Systems Office staff were allocated as Principal costs
because their anticipated DSpace time allocation is greater than 20 percent. Public
Service staff, who interact significantly with the Libraries’ users and answer questions
about the Libraries’ electronic resources, were accounted for under Comprehensive costs,
in the interest of understanding the full impact of DSpace on Libraries’ planning and the
contribution of the existing MIT Libraries infrastructure.