[comp.object] Enquiry on OODB products

subraman@helot.trl.oz.au (Hari Subramanian) (04/10/91)

I am working on the development of a service management system (SMS) for
intelligent networks. The SMS uses an object oriented database. We are
currently evaluating three OODB products:

	VERSANT - VERSANT OBJECT TECHNOLOGY
	OBJECTSTORE - OBJECT DESIGN INC.
	ONTOS - ONTOLOGIC INC.

Have you used these products? What are your opinions on their features,
performance, cost, etc.? How is the training and after-sales support?
Please add your ideas on the +'s and -'s of these products and answer
to the following questions if possible:

1. Is the type independent persistence of ObjectStore very useful?
Does it need a special compiler or a standard C++ compiler to use 
the "persistent" keyword?

2. Do any of the products support interworking with SQL databases?

3. How are the development tools like schema designer, browser &
debugger?

As the products are to be bought within a week, an early response will
be of great help to me. Please email to me directly as I don't read
news very often. I can summarise all responses.
	Thanking you in advance.

Hari Subramanian			Voice: +61-3-541 6534
Telecom Research Labs			Fax: +61-3-544 2362
770 Blackburn Road			email: subraman@helot.trl.oz.au
Clayton, VIC 3168
Australia