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**A survey of variants and extensions of the resource-constrained project scheduling problem.**
*(English)*
Zbl 1205.90123

Summary: The resource-constrained project scheduling problem (RCPSP) consists of activities that must be scheduled subject to precedence and resource constraints such that the makespan is minimized. It has become a well-known standard problem in the context of project scheduling which has attracted numerous researchers who developed both exact and heuristic scheduling procedures. However, it is a rather basic model with assumptions that are too restrictive for many practical applications. Consequently, various extensions of the basic RCPSP have been developed. This paper gives an overview over these extensions. The extensions are classified according to the structure of the RCPSP. We summarize generalizations of the activity concept, of the precedence relations and of the resource constraints. Alternative objectives and approaches for scheduling multiple projects are discussed as well. In addition to popular variants and extensions such as multiple modes, minimal and maximal time lags, and net present value-based objectives, the paper also provides a survey of many less known concepts.

### MSC:

90B35 | Deterministic scheduling theory in operations research |

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\textit{S. Hartmann} and \textit{D. Briskorn}, Eur. J. Oper. Res. 207, No. 1, 1--14 (2010; Zbl 1205.90123)

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