Browse Prior Art Database

One-Step Data Base Charting Facility

IP.com Disclosure Number: IPCOM000046921D
Original Publication Date: 1983-Aug-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 2 page(s) / 46K

Publishing Venue

IBM

Related People

Joy, DL: AUTHOR [+2]

Abstract

On a computer system with an externally described data base, the Bar Chart Program (BCP) is a facility that provides users with a one-step method for viewing data from the data base in the form of a bar chart. No user programming or prior set-up is required. Other methods for viewing data base data in chart form generally require either a multiple step operation (where the data is first extracted from the file and then fed to a charting program) or a prior set-up operation (where the format of the file is described to the charting program). An externally described data base file (DBFILE) is a data base file which consists of two parts: the data description and (optionally) the data. Each record in DBFILE is presented a group of one or more bars.

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One-Step Data Base Charting Facility

On a computer system with an externally described data base, the Bar Chart Program (BCP) is a facility that provides users with a one-step method for viewing data from the data base in the form of a bar chart. No user programming or prior set-up is required. Other methods for viewing data base data in chart form generally require either a multiple step operation (where the data is first extracted from the file and then fed to a charting program) or a prior set-up operation (where the format of the file is described to the charting program). An externally described data base file (DBFILE) is a data base file which consists of two parts: the data description and (optionally) the data. Each record in DBFILE is presented a group of one or more bars. Numeric fields in the record format are the dependent variables on the chart and are depicted by bars with lengths proportional to their absolute values. The independent variable can be either the sequential record number of the contents of any field (numeric or non-numeric, converted to displayable characters) in the record format. The user invokes BCP, supplying a DBFILE name. Specific chart characteristics (size of bars, title of chart, orientation of bars, etc.) may optionally be specified. Operation of BCP, as illustrated in the flow chart, proceeds as follows: 1. Provide defaults for any parameters not provided. 2. Locate DBFILE and extract its description. The description contains the nam...