Screen 3.10 This screen is used to 
Append/Edit/Delete records in Reprints database. 
screen 3.11 This screen is used to generate a 
query on data present in Reprints database. 
Browse function provided in all databases allows 
user to build his own query condition by selecting 
the field,its value for comparison and connectors to 
bulid complex conditions. Subsequent to browsing 
thru the data meeting the conditions, user can 
optionally take hard copy of the data. A print 
options menu is provided for this purpose which 
allows user the facility of direct printing, spooling 
and printing or viewing spooled data. 
5. APPLICATIONS 
The basic aim of the sytem is to provide an inter- 
face between the information requirements of users 
and the availibility of data in any organisation. It 
also serves as an inventory of our resources. The 
option to print the queries has also been provid- 
ed, so that they can be refered at any time, The 
system thus provides for a speedy , accurate and 
convenient retrieval of information. 
The system also provides librarian an effective aid 
in selective dissemination of information (SDI 
services), one of the major objectives of today's 
libraries. Subject bibliographies can also be made 
using the system. The system also enables  prepara- 
tion of on-line catalogues. Various queries can be 
satisfied quickly without much loss of time. 
6. SUMMARY 
A PC based information system to facilitate storage 
and retrieval of remotely sensed and allied data 
products and lierature has been developed. The 
system has been in use for over a year and has been 
found to be user friendly and highly convenient by 
regular users of the system. 
7. REFERENCES 
lBarley, K., & Driscoll, J., Survey of database  man- 
agement systems for microcomputers . Byte Vol 7, 
No.12 ,1981. 
2.Hayes, R.M. , & Becker j., Handbook of data process- 
ing for libraries , 2nd Ed. , California , Melvile 
Publishing Co. , 1984 
3, Lillesand,T.M. & Keifer,R.M., Remote sensing and 
image interpretation, New York , John Wiley & Sons, 
1979. 
4, Midha,R.K, Natural Resources Data Management 
System - A Spatial approach to micro level planning 
, Lecture notes for the short term course on  Geo- 
graphic Information Systems for Resources Data 
handling , Analysis & Management , Feb 19-23,1990 , 
CSRE ,IIT ‚Bombay ‚1990 
356 
5. Nagarajan,R. & Deval,D.P. , C.S.R.E. Data Archives 
,C.S,R.E,Bombay , 1990 
6, Satalkar ,V. & Kunte, P. Micro-based relational 
database for a special library , Electronic library , 
Vol 6 ,No 1, 1988 
7. Simpson, 
A. Understanding dBase III plus , New 
Delhi , BPB Publications , 1986. 
Table 1. Structure of Various Databases Used by 
NRDIS 
Structure of Aerial Photo Database 
Field Name Type Width 
Task No Character 8 
Run No Character 6 
Date Date 8 
Lattitude Character 20 
Longitude Character 20 
Type Character 5 
Scale Character 8 
Total Numeric 3 
States Character 60 
Districts Character 60 
Towns Character 60 
Rivers Character 60 
Owner Character 10 
Issued To Character 15 
Structure of Image Database 
Field Name Type Width 
Satellite Character 10 
Path Row Character 10 
Sensor Character 10 
Product Character 10 
Date Date 8 
Time Character 8 
Bands Character 10 
Scale Character 8 
Sun Elev Numeric 3 
Sun Azi Numeric 3 
Lattitude Character 20 
Longitude Character 20 
States Character 60 
Districts Character 60 
Towns Character 60 
Rivers Character 60 
Owner Character 10 
Issued To Character 15 
Structure of Toposheet Database 
Field Name Type Width 
Sheet No Character 8 
Lattitude Character 20 
Longitude Character 20 
Restricted Character 1 
Scale Character 8 
Year Numeric 4 
States Character 60 
Districts Character 60 
Towns Character 60