In general it can be stated that the more of the authenticity of the original document is conserved, the more risky and costly is the corresponding strategy. Conversion appears to be a very viable and robust solution, yet, the original look and feel of a collection item might be corrupted. On the other hand, Technology Preservation completely retains authenticity, yet, aside being costly preserving an operating system in the long run can not be guaranteed. Since this field of research has only recently emerged and at the same time it deals with long periods of time, non of the presented approaches has sufficiently been tested in field.
However, a single sound solution is not to be expected. Rather, a strategy has to be chosen depending on the circumstances of the actual task and the demands that are being made and will be adjusted on the case. It is even conceivable, that the solution will not be based on only one approach. After all, the approaches are not mutually exclusive. Combining the approach of Conversion with Emulation, for instance, appears highly beneficial. The former guarantees that there exists an accessible version of any collection item. Although its original form might have been corrupted, this representation may often suffice to serve the demands of the user. Additionally, the original documents are retained and encapsulated pursuing an Emulation-approach. If the genuine look and feel is indispensable, it can still be recreated even if a time-consuming procedure and higher costs are involved.