Project managers for owners, designers, and contractors need real-time
information to assist them in managing projects. This paper describes
a process whereby owner, engineer, and construction contractor organi
zations can use continuous or time-dependent variables (e.g., owner ex
penditures, construction effort hours expended) to predict project out
comes from start of detailed design through construction completion. C
ontinuous variable data were collected on 54 construction projects. S-
curves were developed for two project outcome categories: (1) ''succes
sful'' (meeting or exceeding budget and schedule expectations); and (2
) ''less-than-successful'' (not meeting budget and/or schedule expecta
tions of the owner). Statistical analysis was performed to identify th
ose variables showing a statistically significant difference between t
he two project outcome categories. Variables exhibiting a significant
difference between the S-curves for ''successful'' and ''less-than-suc
cessful'' projects can be used as predictors of project outcome. Resul
ts show that different variables were predictors of success at differe
nt points of time during the project life cycle. Practical application
s of these results along with limitations and future research are desc
ribed.