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<a target="_blank" rel="noopener" href="https://fatcat.wiki/container/fr4el5amwjgurnzfbga6pji4ue" style="color: black;">2010 IEEE Symposium on Visual Languages and Human-Centric Computing</a>
Many errors in spreadsheet formulas can be avoided if spreadsheets are built automatically from higher-level models that can encode and enforce consistency constraints. However, designing such models is time consuming and requires expertise beyond the knowledge to work with spreadsheets. Legacy spreadsheets pose a particular challenge to the approach of controlling spreadsheet evolution through higher-level models, because the need for a model might be overshadowed by two problems: (A) The<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/vlhcc.2010.22">doi:10.1109/vlhcc.2010.22</a> <a target="_blank" rel="external noopener" href="https://dblp.org/rec/conf/vl/CunhaES10.html">dblp:conf/vl/CunhaES10</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/ibbtezrycvh57krwmnnxwiw2g4">fatcat:ibbtezrycvh57krwmnnxwiw2g4</a> </span>
more »... it of creating a spreadsheet is lacking since the legacy spreadsheet already exists, and (B) existing data must be transferred into the new model-generated spreadsheet. To address these problems and to support the modeldriven spreadsheet engineering approach, we have developed a tool that can automatically infer ClassSheet models from spreadsheets. To this end, we have adapted a method to infer entity/relationship models from relational database to the spreadsheets/ClassSheets realm. We have implemented our techniques in the HAEXCEL framework and integrated it with the ViTSL/Gencel spreadsheet generator, which allows the automatic generation of refactored spreadsheets from the inferred ClassSheet model. The resulting spreadsheet guides further changes and provably safeguards the spreadsheet against a large class of formula errors. The developed tool is a significant contribution to spreadsheet (reverse) engineering, because it fills an important gap and allows a promising design method (ClassSheets) to be applied to a huge collection of legacy spreadsheets with minimal effort.
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