Rudarski radovi br 4 2011 - Institut za rudarstvo i metalurgiju Bor

MINING AND METALLURGY INSTITUTE BOR YU ISSN: 1451-0162<br />
COMMITTEE OF UNDERGROUND EXPLOITATION OF THE MINERAL DEPOSITS UDK: 622<br />
UDK: 519.21:330.322(045)=20<br />
Velimir Dutina * , Ljubo Marković * , Miljan Kovačević *<br />
PLANNING THE TIME OF INVESTMENT PROJECT REALIZATION<br />
USING THE FUZZY NUMBER COMPARISON METHOD<br />
Abstract<br />
Planning is one of the most important functions of a construction company management. The<br />
planning effectiveness will depend on how accurate the assumptions of the future plan are, in<br />
other words to what extent the understanding of previous experiences has been used. In order for<br />
the planning to be carried out successfully, it is necessary to constantly monitor and analyze the<br />
implementation process, as well as to carry out permanent improvements. A large number of factors<br />
influence the fact that a certain degree of uncertainty and imprecision must be taken into account<br />
in the process of planning. The most important alternative approach is based on the fuzzy set<br />
concept.<br />
Key words: planning, Possibility Theory, fuzzy sets, probability<br />
INTRODUCTION<br />
Investment project completion time<br />
planning is one of the most important functions<br />
of a construction company management.<br />
Without planning, the realization is<br />
left to disorganized events which in some<br />
cases may lead to the interruption in project<br />
realization and termination of contracts. In<br />
order for the planning to be realistic, rational<br />
and economical, it should conform to<br />
production capabilities of a company, it<br />
should use updated data bases (of projects<br />
already completed and market research)<br />
and to rely upon contemporary mathematical<br />
theory.<br />
Planning effects depend on both accuracy<br />
and precision of the assumptions on<br />
which the plan should be based, in other<br />
words on how the gathered information and<br />
acquired experiences are used. In order for<br />
the planning to be successful, it is necessary<br />
to constantly monitor and analyse the<br />
process of realization, to permanently<br />
moni-tor and apply new technological solutions<br />
and innovations, as well as to carry<br />
out improvement, training and education of<br />
the personnel. The mistakes that have been<br />
noted in planning and organization on one<br />
facility should be gathered, systematized<br />
and analyzed, so that the adequate solutions<br />
would be found and in accordance with<br />
them the measures taken to prevent the<br />
mistakes from happening again. This is a<br />
rational way towards production improvement.<br />
* University in Pristina, Faculty of Technical Sciences, Kosovska Mitrovica<br />
No 4, 2011. 157<br />
MINING ENGINEERING