This study is aimed to find a solution for minimizing the outpatient queuing process
in the hospital in Indonesia. Simulation technique is being used to identify proper
appointment scheduling with patient unpunctuality to support the implementation
planning of online registration in Indonesian hospital. In specific, the system of
outpatient installation section at the clinic under study and the proposed system
are modeled and simulated using Arena software to determine the optimum interarrival
scheduling
time
with
unpunctual
patients.

Results indicate that the implementation of scheduling system in hospitals has a
substantial influence on improving the queuing process. With sufficient data,
Indonesian hospitals will be able to calculate the optimum inter-arrival scheduling
time which will benefit all stakeholders, including patients, medical personnel, and
the hospital itself. As evidence, it was discovered that a five-minute scheduling
period for patients in the psychiatric department of hospital X is regarded optimal,
considering total time spent at the polyclinic, doctor utilization, and the number of
patients can be served per day as the performance measures.