Batelle Software (aka Information Dimensions Ltd) is a recently created offshoot of the Batelle Memorial Institute; the latter was set up in 1929 by one Gordon Batelle, a wealthy ex-miner, in whose will it was charged to undertake research "for the good of mankind". It now describes itself as the "world's largest private research company" and can lay claim to having benefited mankind by the invention of (inter alia) the Xerox machine, Snopake and bar-coding. BASIS, a market leader in text retrieval software, was originally (early 60s) an in-house product used to keep track of the Institute's voluminous research project reports; DM, modestly described as an improvement on all existing relational database management systems, is a more recent product, developed over the last six years from BASIS.
The seminar was in two parts, each consisting of a fairly technical run through followed by a demonstration. It was one of a series of small and (as it transpired) rather well run seminars which the company has been running this month to raise its UK visibility somewhat; there were about six attendees apart from ourselves.
DM runs on CDC and DEC machines and is due to be ported to IBM next year. At first glance it looks like a fairly traditional ANSI/SPARC three level architecture DBMS, with a structural data model, an "actual" (i.e. logical) data model and one or more user data models. It supports concurrent access - up to 511 per "kernel" (i.e. database virtual machine) against 250 databases, with up to eight kernels per mainframe; it comes with COBOL or Fortran pre-processors, has good screen handling facilities, a reasonable-looking report writer, and extensive security, recovery and journalising features etc. It has a built-in data dictionary which is used to enforce referential integrity. It has its own system language (FQM) which is similar to but not the same as SQL; in particular it does not contain facilities to create new views or relations. When pressed, Batelle insist that when the product is enhanced to support SQL (supposedly real soon now) it will support a full SQL including such facilities. On the other hand FQM supports text items far more effectively and usefully than SQL.
BASIS is a well established text retrieval system (major users include BT, BP, the Smithsonian Institute, Pergamon Infoline and Reuters, not to mention the Houses of Parliament or President Reagan's personal VAX). It is also used as a component of Wang's Office Systems and of a turnkey library system; in the shape of Micro-BASIS it is also being licensed to various CD-ROM publishers. Its indexing strategies (there are twenty different algorithms) appear to be sufficiently flexible to cater for almost any sort of text or user requirement thereof, including support for funny alphabets, embedded ignore characters etc.
Stop/Go words can be specified. Phrases can be indexed. Subfields within text can be indexed (e.g. if one field of a report contains a table, each row of the table can be indexed distinctly). More than one search unit can be specified for the same file, though not of course dynamically. The package has a reasonable screen interface, with a tolerable procedural language used to hook sets of commands together. It has a built-in thesaurus capability which can be user-modified, an online editor and a reasonably flexible and relaxed batch input system. Like most such systems, it uses an unindexed holding-file for recent data; access to the main text base is not possible while it is being updated.
On the whole I was favourably impressed by both systems. In particular, DM seems the only serious contender for the role of DBMS on CDC hardware, while BASIS is certainly worth consideration for the role of text searching software on DEC Amdahl or CDC hardware. Both products are far from cheap: DM with all its bells and whistles for a Cyber 855 would cost over £40k; while the basic module of BASIS would cost over £6k even on a micro VAX and might be twice as much on a mainframe.