Parallel running When both the old and the new numbering arrangements run alongside each other leading up to an actual number change. It allows customers a transition period to get used to the new arrangements. Pathfinder The BT product database and search engine which will replace DAS and be used to provide an operator assisted directory enquiry service. Personal data Definition used in Data Protection Act 1984 to mean information recorded on computer about living identifiable individuals. Phone Base BT's product database which provides an on-line directory information service.
Customers access it using a computer and modem.
Phone Disc BT's directory CD-ROM product which contains residential and business directory information on all customers listed in phone books. All calls to these companies are charged at a higher rate than ordinary calls to cover the companies' costs in providing the content of the call and the operator's cost for the special network facilities needed. Product database Term to describe databases which are produced by downloading directory information from core databases and manipulating that information so that it is suitable for various types of interrogation. DAS is an example of a product database. The information about demand, costs, quality etc, contained in relative prices or changes in relative prices.