<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Modern project management owes its reputation to the development of modern scheduling techniques based on the theory of graphs, namely, network scheduling techniques. In 2017, these techniques are celebrating their 60th birthday. This anniversary provides the opportunity to look back at the most important achievements such as non-linear activities and new precedence relations, as well as to take a look into the future. The highlights of this subjective retrospective are the presentation of the latest results and the compilation of those problems that will probably define the priorities for future research. This paper is the extended version of the keynote lecture/presentation that has been presented at the PBE 2016 Conference (People, Buildings and Environment, Luhačovice, Czech Republic) (<xref ref-type="bibr" rid="j_otmcj-2016-0013_ref_026_w2aab3b7d152b1b6b1ab2ac26Aa">Hajdu 2016a</xref>).</p></abstract>

Modern project management owes its reputation to the development of modern scheduling techniques based on the theory of graphs, namely, network scheduling techniques. In 2017, these techniques are celebrating their 60th birthday. This anniversary provides the opportunity to look back at the most important achievements such as non-linear activities and new precedence relations, as well as to take a look into the future. The highlights of this subjective retrospective are the presentation of the latest results and the compilation of those problems that will probably define the priorities for future research. This paper is the extended version of the keynote lecture/presentation that has been presented at the PBE 2016 Conference (People, Buildings and Environment, Luhačovice, Czech Republic) (Hajdu 2016a).

Sixty years of project planning: history and future

Budapest University of Technology and Economics

Organization, Technology and Management in Construction: an International Journal

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

{"article-title":"Sixty years of project planning: history and future"}

Modern project management owes its reputation to the development of modern scheduling techniques based on the theory of graphs, namely, network scheduling...

Sixty years of project planning: history and future

Article Category: Research Article

Published Online: Mar 14, 2017

Page range: 1499 - 1510

Received: Oct 16, 2016

Accepted: Nov 28, 2016

DOI: https://doi.org/10.1515/otmcj-2016-0013

Keywords
network scheduling, Critical Path Method, PERT, Precedence Diagramming Method, continuous precedence relations, non-linear activities, logical switches

© 2016 M. Hajdu et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Fig. 7

Fig. 8

Fig. 9

Fig. 10

Fig. 11

Fig. 12

Fig. 13

Fig. 14

Fig. 15

Fig. 16

Sixty years of project planning: history and future

Article Category: Research Article

Published Online: Mar 14, 2017

Page range: 1499 - 1510

Received: Oct 16, 2016

Accepted: Nov 28, 2016

DOI: https://doi.org/10.1515/otmcj-2016-0013

Keywordsnetwork scheduling, Critical Path Method, PERT, Precedence Diagramming Method, continuous precedence relations, non-linear activities, logical switches

© 2016 M. Hajdu et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Fig. 7

Fig. 8

Fig. 9

Fig. 10

Fig. 11

Fig. 12

Fig. 13

Fig. 14

Fig. 15

Fig. 16

Keywords
network scheduling, Critical Path Method, PERT, Precedence Diagramming Method, continuous precedence relations, non-linear activities, logical switches