Abstract— Palang Merah Indonesia (PMI) is a social
organization in the city of Bandung. In the business process, the
blood donor section has not used any software that satisfies the
need to connect communities and PMI on blood donor
information. So it takes software that can help the process of
running blood donor business to minimize the problems that
occur such as human error and not spread information about
blood supply. RE (Requirement Engineering) is an early stage as
an important task, as many software failures come from
inconsistent, incomplete or just wrong specification
requirements. In RE there is a process that is requirement
analysis to do analysis of user needs. Goal Oriented
Requirements Engineering (GORE) is one of the models that can
be used to analyse user needs. One method on the GORE model
is the TROPOS method. The use of TROPOS on the development
of the blood stock management software to focus on the needs
analysis on the stages of modeling early requirement and late
requirement. The results of the analysis are implemented into
web software design. Software that has been created based on the
modeling evaluated using BlackBox Testing with user acceptance
test (UAT) by stakeholders. Based on the results of the
assessment UAT score, the results of the respondents assessment
is 3.55%, so that the blood stock management software can be
used as a supporting tool to run the blood stock business process
of PMI.