Brief Overview of Current Systems

From a database, where all information is linked to each other, single data cannot be removed readily and stored somewhere outside the database. For archiving, there is either a corresponding structure required or the CDS already offers special functionalities that make archiving possible. 

It seems to be impossible to provide an entire overview of all CDS that are currently on the market. Every now and then, some trade magazines are publishing overviews where the different functionalities are compared. But these comparisons do not really offer an objective view. Almost all systems have an audit trail function today, but the functional scope differs a lot between the single systems. Knowing that it is impossible to offer a real objective comparison, the most common systems should be presented from a subjective point of view. Besides some information about the CDS itself, the mentioned advantages and disadvantages reflect the ratings and perceptions of different users. Anyway, everybody is free to make his own appraisal. 

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