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Archiving by Analogization !?

Reiner GÖLDNER(Archaeological Heritage Office Saxony, Germany ) Keywords: digitalization, analogization, archaeological documentation, archiving We love digitization because we live in a digital world. Information technologies (IT) help us to tackle complex affairs like never before. Bookshelves, photo albums, worldwide maps, excavation documentation available at about 100 grams of IT, as is intelligent interpretation of handwriting as well as voice and face recognition. No problem. Archaeology too benefits greatly from such digital methods.But contemplating sustainability, preservation and things that remain, the chances for digitized objects are not that good. Digital life is short and it takes much effort to archive digital content and especially digital functionality. Often it is too expensive. Often there is no spare capacity for the preparation and curation of archive material. So mountains of digital data grow and grow, waiting to be excavated by future digital archaeologists.But contemplating cognition, creativity and our real world interaction, bits and bytes are usually not helpful, we need analogue Information. We read analogue texts, study analogue images and listen to analogue sounds. Scientific reasoning will continue to be a non-digital method (even though artificial intelligence seems to expand into refrigerators and washing machines). So digitization needs analogization (Fig. 1). Fig. 1. Digitization needs Analogization (© R. Goeldner) Archaeologists, especially, are familiar with lots of analogue things that survived thousands of years (without any curation effort). Some archivists also try to preserve digital information in an analogue form (hardcopy), maybe on/in LE paper, PET microfilm or ceramic tiles. The major advantage is, these archive materials are directly readable (recognizable), without any help of IT.So one may hit on the idea of omitting all the IT. Wouldn’t it be cheaper to draw excavation plans on paper than digitize it first and print it out last? Wouldn’t it be more authentic to draw a plan directly by hand then to trust hidden data exchange of bits and bytes? This short presentation will offer some provocative ideas on digital archiving that are well suitable to be discussed by interested participants. ReferencesR. Göldner: Archivierungsmethoden. In: Ratgeber zur Archivierung digitaler Daten, pp. 11-14. (online)MOM – Memory of...

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Developing Tachy2GIS – Result and Perspective

Christian TRAPP1 | Reiner GÖLDNER2 (1Software Developer, Germany | 2Archaeological Heritage Office Saxony, Germany) Keywords: excavation, survey, total station, GIS The Hamburg Archaeological Museum maintains the development of basic components of “Tachy2GIS” (which is a real implementation of the “TachyGIS” idea). The existing prototype now is consolidated and extended due to basic requirements. By providing direct communication between a total station and the open source geographic information system QGIS, Tachy2GIS connects the well understood tool of the hand drawn map with the abilities of modern measuring equipment and geographic information systems. Drawing an excavation plan on a computer screen with a total station as stylus allows survey results to be reviewed and corrected in situ and immediately. Fig. 1. Digitization needs Analogization (© R. Goeldner) Geographic information systems are first and foremost map making software and Tachy2GIS is aimed at the archaeological community, which has special requirements towards said systems: Archaeological data is inherently very three-dimensional. There are almost always features on top of each other and also such that are much more vertical than flat. Both cannot be satisfactorily represented in a 2D top down view. Thus the next step is to add 3D interactive capabilities beyond the scope provided by QGIS in its current state.Right now we are researching how to achieve this, while keeping in mind that the typical laptop in the field will lack powerful graphics hardware. Progress is being made and we are looking forward to show off some implementation details. With this on the way, our eyes are set on extending the data acquisition side of Tachy2GIS to support a wider base of input hardware, which poses a new set of technological and financial challenges, as we need access to a variety of expensive devices which may use undocumented proprietary protocols.So the development is highly oriented on requirements of real archaeological excavations. It also follows principles of Free and Open Source Software to reduce overall expenses of the archaeological community. The short presentation will show results and perspectives of the Tachy2GIS developing project. ReferencesWorkshop „Digitale Grabungsdokumentation – objektiv und nachhaltig“, Dresden 2018-02J. Räther, C. Schubert: Werkstatt-Resümee TachyGISC. Trapp: Tachy2GIS – mit der Totalstation...

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First Experiences Using TachyGIS in Excavation Practice

Christof SCHUBERT | Reiner GÖLDNER(Archaeological Heritage Office Saxony, Germany) Keywords: excavation, survey, total station, GIS Abstract:The importance of GIS in archaeology has been constantly growing over the last years, not only for analysis and interpretation, but also for on-site documentation. In cooperation with the Archaeological Museum Hamburg, Tachy2GIS has been developed as a QGIS plugin to allow “live” measurements with Leica total stations in QGIS. A prototype of this plugin has been tested over several months on excavations at the opencast mines near Weißwasser (Saxony). During these tests, the team improved the excavation specific geodata structure and developed a specific user interface to optimally support excavation workflows. The presentation will outline the current state, first experiences made in excavation practice and give an outlook on the further development of this FOSS project. Fig. 1. Workshop Teaser “Digitale Grabungsdokumentation – objektiv und nachhaltig” (© R. Goeldner) ReferencesWorkshop „Digitale Grabungsdokumentation – objektiv und nachhaltig“, Dresden 2018-02C. Schubert: Digitale Grabungsdokumentation in Sachsen aus grabungstechnischer SichtJ. Räther, C. Schubert: Werkstatt-Resümee...

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