Part 1 The background to object technology: the object orientated approach and its relevance to data management, Roger Tagg; object technology - making applications interoperable in a distributed environment, Christopher Stone; making objects stick, John Daniels and Steve Cook. Part 2 Object management - the products: a survey of orientated database systems, R.W. Thearle; towards an object orientated database - a relational view, Carlos Miguens; the ONTOS object database, Tim Andrews; what should go into an OOBMS product (and why there is no simple answer!), Elizabeth Oxborrow. Part 3 Object management - the applications: a review of the suitability of various applications for an OO approach, Roger Tagg; object orientated techniques in information engineering, Keith Short; object orientated methodology and geographical information systems - a natural partnership?, Robert Barr; case study - computer-aided control system design, Jan Maciejowski and C.Y. Tan; objects in the office - the benefits for users of New Wave, Chris Marshall. Part 4 Object management - the implications: hierarchical object orientated design (HOOD) - an overview, Peter J. Robinson; object reusability - the making of data managment, malcolm Fowles; object database design, Colette Rolland and Joel Brunet.