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Borges, W F and Mário, P d C (2017) Five Project-Duration Control Methods in Time Units: Case Study of a Linearly Distributed Planned Value. Journal of Construction Engineering and Management, 143(06).

  • Type: Journal Article
  • Keywords: Project management; Time variance; Schedule variance; Cost variance; Construction project; Cost and schedule;
  • ISBN/ISSN: 0733-9364
  • URL: https://doi.org/10.1061/(ASCE)CO.1943-7862.0001280
  • Abstract:
    Changes in projects often affect planned performance. Earned value management (EVM) is a performance measurement methodology to control costs and scheduling by evaluating project progress using monetary values. Complementary methods to control project duration in time units were developed. This study contributes to project management by showing how to control costs, schedules, and time variances, given changes in quantity, resource costs, and productivity to identify the responsibilities of a contractor and owner for variations in time and cost. This study addresses the main methods for controlling project time variance in time units, as obtained through an extended literature review, and utilizes these methods by applying data from a real-life project. The findings indicated that in the case of a linear distribution of planned values, four of the five methods yielded identical values for the time variance to date and one of the methods depends more on the number of parallel activities in progress or completed.