On 17/02/2012 14:50, Randolph Neall wrote: > >Other models I didn't try yet are Object Oriented DBs and Document > Oriented DBs (XML, JSON, ...) [6]. I think DODBs are a good option, > fast for store highly hierarchical structures, but you need to write > some ugly queries if you want your data back :D > Aren't several major OpenEHR systems using XML or stored blobs on top > of a rather minimal DB schema?
Correct - you would not use XML blobs in a system of any serious size and transaction requirements, binary is needed. But blobbing with very smart adaptive indexing works very nicely on relational DBs, where the RDB becomes a smart blob manager. - thomas
