Practical analysability of Life Cycle Assessment is high related to data availability and data quality. High costs and many efforts are required for performing traditional high data-quality LCA. An heuristic approach for data collection can provide more useful results than other approaches using quantitative data which already demonstrate errors or improperness which have been recognised. The heuristic approach provides data both cheaply and rapidly which is not surely exact but still accurate enough for practical situations. Although the heuristic approach has some restrictions in comparison to other alternatives, it is a valuable option.