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Browsing by Subject "support system"

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    Item type:Article, Access status: Open Access ,
    CP-driven production process planning in multiproject environment
    (2008) Banaszak, Zbigniew; Bocewicz, Grzegorz; Bach, Irena
    The way enterprise capabilities are used decides about its competitiveness among other ones. In that context modeling aimed at production tasks allocation planning plays a crucial role especially at concurrently executed production orders. The introduced reference model employing constraint programming (CP) paradigm describes both an enterprise and a set of project-like production orders. Moreover, encompassing consumer orders requirements and available production capabilities, the model provides the formal framework allowing one to develop a class of decision support systems aimed at interactive production process planning subject to multiproject environment constraints. In that context our contribution is a knowledge-based and CP-driven approach to resource allocation assuming precise character of decision variables. The conditions sufficient for deadlock avoidance are the main goal. The conditions delivered provide formal framework for developing a task oriented Decision Support Tool for Project Portfolio Prototyping (DST4P, Banaszak 2006). The tool provides a prompt and interactive service to a set of routine queries formulated either in straight or reverse way.
  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Strata control in underground tunnels - perspectives for development
    (Wydawnictwa AGH, 2005) Majcherczyk, Tadeusz; Małkowski, Piotr
    The paper constitutes a review of support systems of underground tunnels used in Polish coal mines. Taking the tendency to rationalise costs of tunnel drivage into consideration, new directions of strata control development are suggested, especially in terms of increasing spacing between support units and their reinforcement. The authors wrap up the discourse with their conclusions as well as share their experiences gained from monitoring interaction between support and rock mass.