Task assignment optimization in SAP Extended WarehouseManagement

Nowadays in the world of mass consumption there is big demand for distributioncenters of bigger size. Managing such a center is a very complex and difficult taskregarding to the different processes and factors in a usual warehouse when we want tominimize the labor costs. Most of the workers’ working time is spent with travelingbetween source and destination points which cause deadheading. Even if a worker knowsthe structure of a warehouse well and because of that he or she can find the shortest pathbetween two points, it is still not guaranteed that there won’t be long traveling timebetween the locations of two consecutive tasks. We need optimal assignments betweentasks and workers.In the scientific literature Generalized Assignment Problem (GAP) is a wellknownproblem which deals with the assignment of m workers to n tasks consideringseveral constraints. The primary purpose of my thesis project was to choose a heuristics(genetic algorithm, tabu search or ant colony optimization) to be implemented into SAPExtended Warehouse Management (SAP EWM) by with task assignment will be moreeffective between tasks and resources.After system analysis I had to realize that due different constraints and businessdemands only 1:1 assingments are allowed in SAP EWM. Because of that I had to use adifferent and simpler approach – instead of the introduced heuristics – which could gainbetter assignments during the test phase in several cases. In the thesis I described indetails what ware the most important questions and problems which emerged during theplanning of my optimized assignment method.

Har den interna demokratin i politiska partier försämrats över tid?

Has intra-party democracy deteriorated over time? A widely held view in contemporary party research is that intra-party democracy, especially in traditional mass parties, has deteriorated in the age of the cartel party. This common assessment, however, relies on insufficient empirical evidence, and is scrutinized in the article. The notion of a gradual progress towards the cartel party implicitly shares common characteristics with the classic theory of Michels. In order to investigate the actual fate of intra-party democracy, central aspects of Michels theory are explored over time in a critical case, namely the Swedish SAP. If intra-party democracy is declining, this tendency should be most likely to be observed in this case. Two internal decision-making processes, surrounding two major pension reforms – one expansion in the 1950’s and one retrenchment in the 1990’s – are compared based on criteria deducted from Michels. Instead of finding a decline in intraparty democracy, the results conclusively demonstrate major improvements.