Ciao Paolo, Your question is interesting :)
We selected a set of opensource tools to face governance problems of our Customers. RDBMS is an component of the solution. Customers have enterprise IT systems and we have to integrate those tools with those systems (fuseki as example). Usually they ask for some features, like scalability and quality of service. We prefer the use of RDBMS for different reasons: -technical reasons: RDBMS is scalabile and we can controll quality of service (or we can try to do it). -transactiona problems -- Customers know that RDBMS solve transaction issues, while if you use file system you have to explain how to solve them. -reuse of skills, infrastructures and licences Customers usually have a DB (Oracle as example). It means --they pay a the licence, --their employees are skilled on (Oracle) DB, --they have one or more server for it (I mean machine and configuration costs) --they pay for assistance. If I use RDBMS I can reuse all this structures; while if I use file system I have to recreate all those structures or at least some of those (according with quality of service customer needs). -Cultural problems If Customers' employees use RDBMS for years ti is difficult to convince them to use other solutions -Architectural problems --In Enterprise Architectures you would expose your knowledge base as a service (with the quality of service customer needs), so that different clients (business clients or administration clients) can use it. RDBMS solves this issue natively. I hope it's usefull for you Regards Francesco. 2012/9/13 Paolo Castagna <[email protected]> > Ciao Francesco, > thanks for sharing. Just a couple of (late) comments. > > On 6 September 2012 13:21, Francesco Panico <[email protected]> wrote: > > It's two year my society (GruppoImola) works with jena. Our customers are > > banks and insurances, so it's important to store triples in a relational > DB > > instand of File System. > > If there will ever be a Powered By Apache Jena page somewhere on the web, > you should consider be on that page. :-) > > One question, I imagine the "culture" of the customers you work with. > However, what would you say are the main motivations for them to use > RDBMS systems with Apache Jena? > > > We focused on SDB. We have 5 customers with a semantic application in a > > production environment based on jena, sdb and semantic mediawiki. > > :-) > > "Grazie mille" for your feedback. > > Paolo > -- ufficio: 0542 32640 mail: [email protected] cell: 349 3508348 skype: [email protected]
