পদ্ধতির তুলনা করুন

	Debitage Analysis	Chaine Operatoire
ক্ষেত্র	প্রত্নতত্ত্ব	প্রত্নতত্ত্ব
পরিবার	Process / pipeline	Process / pipeline
উদ্ভবের বছর	1985	1993
প্রবর্তক	Alan P. Sullivan & Kenneth C. Rozen (interpretation-free typology); systematized by William Andrefsky	Andre Leroi-Gourhan (concept); operationalized for lithics by Francois Sellet and the French technological school
ধরন	Classification and quantification of flaking debris to infer reduction stage and technology	Analytical reconstruction of the full sequence of technical operations from raw material to discard
মৌলিক উৎস	Sullivan, A. P., & Rozen, K. C. (1985). Debitage Analysis and Archaeological Interpretation. American Antiquity, 50(4), 755-779.	Sellet, F. (1993). Chaine Operatoire; The Concept and Its Applications. Lithic Technology, 18(1-2), 106-112.
অপর নাম	Flaking Debris Analysis, Debitage Typology, Mass Analysis of Debitage, Flake Debris Analysis	Operational Sequence Analysis, Reduction Sequence Approach, Chaine Operatoire Analysis, Technological Sequence Analysis
সম্পর্কিত	2	2
সারসংক্ষেপ	Debitage analysis is the study of flaking debris — the flakes, fragments, and shatter struck off during stone-tool manufacture — to infer how stone was reduced, by what techniques, and to what stage. Because debitage typically outnumbers finished tools many times over at a site, it is the richest and most representative evidence of production, and quantifying it lets archaeologists reconstruct knapping behavior even where the tools themselves were carried away. Sullivan and Rozen's landmark 1985 paper argued that earlier debitage typologies smuggled interpretation into their categories, and proposed an interpretation-free classification based on a few objective morphological observations, separating description from inference. Alongside this typological approach sit aggregate methods such as mass analysis and size grading, which Andrefsky systematizes, that characterize whole assemblages by weight and size-class distributions rather than piece by piece. Together these techniques turn waste flakes into a quantitative record of the reduction process.	The chaine operatoire, or operational sequence, is an analytical framework that reconstructs the entire ordered chain of technical actions and decisions by which a raw material is transformed into a tool, used, maintained, and finally discarded. Originating in the technological anthropology of Andre Leroi-Gourhan, the concept treats technology not as a set of finished objects but as a process — a sequence of gestures, choices, and constraints that materializes human know-how, or savoir-faire. As Sellet's influential synthesis explains, applying the chaine operatoire to stone tools means tracking material from its geological source through acquisition, core preparation, blank production, tool shaping, use and rejuvenation, and eventual abandonment, with every stage represented by characteristic artifacts and by-products. The approach is dynamic and behavioral rather than typological: it asks how and why objects were made the way they were. It complements attribute-based macroscopic analysis, which Andrefsky systematizes, by binding individual technological readings into a coherent narrative of production from start to finish.