Knowledge sharing is important for every software project. Effective knowledge sharing requires consistent and timely communication among team members. Blackwell’s Attention Investment theory suggests that developer’s personal attention needs dominate the process of knowledge sharing in a software development team. In this paper, using a case study approach, we analyze different attention needs associated with the developers’ motivation when they acquire project related information for a research based software development team named TaskTracer. Additional findings show that individual developer’s personality, the specific situation, group and hierarchical attention motivation and interpersonal relationship with others influence their decisions, which were not predicted by original Attention Investment theory.