RSTS-11-118

LEADS: An Interadive Daft Base NIaMement System for Education, Version: 1, May 1978


Author: Walter Koetke, Lexington Public Schools, Lexington, MA

Operating System: RSTS/E V6B, V6C

Source Language: BASIC-PLUS,

Special Hardware Required: RP06, RP04, RM03 or other large disk packs are highly desirable for rapid processing

Abstract: The LEADS software is intended to provide local school districts with an interactive data base management system especially suited for the educational environment. The software is appropriate for: A single, large data base containing all student, staff and finacial data and all approprate data relationships. A large RSTS/E system providing services to several school systems as each system could have its own independent, secure data base. Allowing any user to build his own mini-data base for a special application Teaching data base concepts as each student can be manager of his own data base and operate that data base entirely on his own. The available software includes:

  1. all of the utilities required to create and maintain a data base
  2. a powerful, easy to use query language
  3. a report writer language
  4. a function package that enables user written programs to interact with the data base; and
  5. documentation intended to fully describe the first four items.

    The LEADS software includes few restrictive parameters and several features found in the very good, very expensive commercially available DBMS's. There are, of course, files which are divided into records which are divided into fields. Records can be related to other records using pointers and associators. Pointers permit "direct" access to the target record while associators require one or more intermediate steps. Fields can be accessed sequentially or by using an optional ISAM Index. Inquiries can be nearly as complex as desired with little or no regard to the software boundries of files and fields. Users can make most of their queries with no knowledge of the data structure. There is a multi-level security system that permits school systems to be as legal as they choose with their computer based data.

    Media Price Codes: E5, N65, Q145, Format: RSTS/E


    FilenameSize (kbytes)
    ASSOC.BAS 18.5
    ASSOC.V1 11.5
    BADB.SYS 0.0
    BEGIN.BAS 24.5
    BEGIN.V18 14.5
    BKP.V3 3.0
    COMOUT.BAS 2.0
    COMOUT.V7 2.5
    DATAB.LTX 0.5
    ERR.LTX 0.5
    FIELDS.BAS 24.5
    FIELDS.LTX 0.5
    FIELDS.V12 15.0
    FILDAT.LTX 2.0
    FILES.BAS 23.0
    FILES.V21 20.5
    FN.BAS 4.5
    FN2.BAS 0.5
    FN3.BAS 1.5
    FN4.BAS 0.5
    FN5.BAS 0.5
    FN6.BAS 1.0
    FN7.BAS 0.5
    FN8.BAS 1.5
    FNA.BAS 13.5
    FNA.V45 37.0
    FNA1.BAS 1.0
    FNA2.BAS 0.5
    FNAA.BAS 1.0
    FNB.BAS 2.0
    FNB.V8 5.5
    FNC.BAS 2.5
    FNC.V13 6.5
    FND.BAS 2.5
    FND.V10 6.5
    FND1.BAS 0.5
    FND2.BAS 0.5
    FNE1.BAS 1.0
    FNI1.BAS 1.0
    FNO1.BAS 3.5
    FNO2.BAS 2.5
    FNO3.BAS 1.0
    FNP.BAS 0.5
    FNP2.BAS 0.5
    FNS0.BAS 0.5
    FNT1.BAS 0.5
    FNT2.BAS 0.5
    FORMAT.LTX 1.0
    FUNCT.DOC 137.5
    GCOLL1.BAS 18.5
    GCOLL1.V10 8.0
    GCOLL2.BAS 11.5
    GCOLL2.V4 2.5
    GCOLL3.BAS 15.0
    GCOLL3.V4 6.5
    GCOLL4.BAS 2.0
    GCOLL4.V3 2.5
    GCOLL5.BAS 17.5
    GCOLL5.V9 10.0
    GCOLL6.BAS 14.5
    GCOLL6.V6 3.0
    GUPP.BAS 27.5
    GUPP.V8 14.0
    INSTR.TXT 4.0
    ISAM.BAS 19.5
    ISAM.V20 14.0
    LDSADD.BAS 1.0
    LIST.BAS 18.5
    LIST.V6 9.5
    LMANGR.DOC 399.0
    LOGDMP.BAS 2.0
    LOGDMP.V3 2.0
    LOGGER.BAS 6.0
    LOGGER.V9 6.0
    LOGIN.BAS 13.5
    LOGIN.V29 16.0
    LOGOUT.BAS 5.5
    LOGOUT.V18 11.5
    LSLOW.BAS 20.5
    LSLOW.V7 6.5
    MSLOW.BAS 2.5
    MSLOW.V7 3.5
    NEWLOG.BAS 0.5
    NEWLOG.V1 0.5
    NSLOW.BAS 2.5
    NSLOW.V5 4.5
    OPHELP.LTX 0.5
    OPTION.BAS 4.5
    OPTION.LTX 0.5
    OPTION.V14 4.5
    PACK.CAT 8.0
    PASWRD.BAS 26.5
    PASWRD.V8 22.0
    QCOPY.BAS 14.5
    QCOPY.V1 7.0
    QUERY.BAS 23.0
    QUERY.DOC 313.5
    QUERY.V31 14.5
    QXEQ.BAS 21.5
    QXEQ.V29 10.0
    REPORT.BAS 21.0
    REPORT.V9 14.5
    SATT.SYS 0.0
    SPHELP.LTX 0.5
    SSLOW.BAS 3.0
    SSLOW.V6 5.5
    UMOUNT.BAS 13.0
    UMOUNT.V3 26.5
    UPDATE.BAS 21.5
    UPDATE.V13 12.5
    UPDCVT.BAS 15.0
    UPDCVT.V2 5.0
    WRITE1.BAS 17.0
    WRITE1.V7 7.5
    WRITE2.BAS 12.0
    WRITE2.V11 18.5
    WRITE3.BAS 17.0
    WRITE3.V8 7.5
    WRITE4.BAS 4.0
    WRITE4.V7 8.0

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    Tim Shoppa shoppa@trailing-edge.com
    Last Modified: 11-Feb-2000