Computer Science – Performance
Scientific paper
Jan 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996adspr..18..213f&link_type=abstract
Advances in Space Research, Volume 18, Issue 11, p. 213-213.
Computer Science
Performance
Scientific paper
ESA, as an international procurement agency dealing with more than 1200 companies at the same time, must have the ability to assess the price for a product independently from other sources. Especially in the today's environment of flat or even declining budgets ESA has to ensure the value of the contributions coming from their member states. The paper presents a software tool developed by the Cost Analysis Division of ESTEC/ESA, which fits exactly the need for precise and retracable cost estimates for space business projects and components. As an introduction the driving needs and basic cost estimation techniques are presented. ECOM was conceived as a tool for independent price assessment and cost estimation. The gem within ECOM is the database, it contains historical data from ESA projects. The items are grouped in classes and the available data comprises the cost breakdown and the technical description, which are the main performance parameter, number of models, design status and beside the comments, also pictures are available. On the estimate part of ECOM it features all the well-known cost estimation techniques, like estimating using analogy, cost estimating relationship, parametric cost modelling, and includes links to commercial products (PCM, Price-H) as well. ECOM is capable of escalating for any given economical condition and any member state. To prepare reliable prize estimates, the cost analysts need the product tree, the work-package description, the technical description and the HW-matrix. The paper shows examples for the important steps of producing an estimate and is enhanced with authentical screen prints. ECOM is used by the Cost Analysis Division as an expert tool for professional cost estimation for space business projects.
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