SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549
                               ------------------


                                 SCHEDULE 13D/A



                    Under the Securities Exchange Act of 1934

                                Amendment No. 14

                        Integrated Security Systems, Inc.
 ------------------------------------------------------------------------------
                                (Name of Issuer)

                                  Common Stock
 ------------------------------------------------------------------------------
                         (Title of Class of Securities)

                                    45812J101
 ------------------------------------------------------------------------------
                                 (CUSIP Number)

                                Russell Cleveland
                         Renaissance Capital Group, Inc.
                  8080 N. Central Expressway, Suite 210, LB-59
                            Dallas, Texas 75206-1857
                                 (214) 891-8294
 ------------------------------------------------------------------------------
                 (Name, Address, and Telephone Number of Person
                Authorized to Receive Notices and Communications)

                                January 07, 2003
 ------------------------------------------------------------------------------
             (Date of Event Which Requires Filing of This Statement)

If the filing person has previously  filed a statement on Schedule 13G to report
the  acquisition  which is the subject of this  Schedule 13D, and is filing this
schedule because of Rule 13d-1(e),  13d-1(f),  or 13d-1(g),  check the following
box [ ].


                         (Continued on following pages)







CUSIP No. 45812J101                    13D                        Page 2 of
------------------------------------------------------------------------------
1.      NAME OF REPORTING PERSON                   I.R.S. IDENTIFICATION NUMBER
        Renaissance Capital Growth & Income Fund III, Inc.           75-2533518
------------------------------------------------------------------------------
2.      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
         (a)      [ ]
         (b)      [x]
------------------------------------------------------------------------------
3.      SEC USE ONLY
------------------------------------------------------------------------------
4.      SOURCE OF FUNDS
        WC
------------------------------------------------------------------------------
5.      CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
        TO ITEM 2(d) OR 2(e)[  ]
------------------------------------------------------------------------------
6.      CITIZENSHIP OR PLACE OF ORGANIZATION
        Texas
------------------------------------------------------------------------------
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:
------------------------------------------------------------------------------
        7.      SOLE VOTING POWER
                24,232,908
------------------------------------------------------------------------------
        8.      SHARED VOTING POWER
                None
      ------------------------------------------------------------------------
        9.      SOLE DISPOSITIVE POWER
                24,232,908
      ------------------------------------------------------------------------
       10.      SHARED DISPOSITIVE POWER
                None
------------------------------------------------------------------------------
11.     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                24,232,908
------------------------------------------------------------------------------
12.     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
        SHARES            [  ]
------------------------------------------------------------------------------
13.     PERCENT OF CLASS REPRESENTED BY AMOUNT IN  ROW (11)
                67.96%
------------------------------------------------------------------------------
14.     TYPE OF REPORTING PERSON
                IV






CUSIP No. 45812J101                       13D                      Page 3 of
------------------------------------------------------------------------------
1.      NAME OF REPORTING PERSON                   I.R.S. IDENTIFICATION NUMBER
        Renaissance US Growth Investment Trust PLC               None - Foreign
        formerly known as Renaissance US Growth and Income Trust PLC
 ------------------------------------------------------------------------------
2.      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
        (a)      [ ]
        (b)      [x]
------------------------------------------------------------------------------
3.      SEC USE ONLY
------------------------------------------------------------------------------
4.      SOURCE OF FUNDS
        WC
------------------------------------------------------------------------------
5.      CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
        TO ITEM 2(d) OR 2(e)  [  ]
------------------------------------------------------------------------------
6.      CITIZENSHIP OR PLACE OF ORGANIZATION
        England
------------------------------------------------------------------------------
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:
------------------------------------------------------------------------------
        7.       SOLE VOTING POWER
                 23,362,631
        -----------------------------------------------------------------------
        8.       SHARED VOTING POWER
                 None
        -----------------------------------------------------------------------
        9.       SOLE DISPOSITIVE POWER
                 23,362,631
        -----------------------------------------------------------------------
        10.      SHARED DISPOSITIVE POWER
                 None
------------------------------------------------------------------------------
11.     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                 23,362,631
------------------------------------------------------------------------------
12.     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
        SHARES    [  ]
------------------------------------------------------------------------------
13.     PERCENT OF CLASS REPRESENTED BY AMOUNT IN  ROW (11)
                 67.16%
------------------------------------------------------------------------------
14.     TYPE OF REPORTING PERSON
                 IV


CUSIP No. 45812J101                    13D                    Page 4 of 10 Pages


--------------------------------------------------------------------------------
1    NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

     Renaissance Capital Group, Inc.                                  75-2053968

--------------------------------------------------------------------------------
2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                 (a) [_] (b) [X]

--------------------------------------------------------------------------------
3    SEC USE ONLY



--------------------------------------------------------------------------------
4    SOURCE OF FUNDS*

     WC

--------------------------------------------------------------------------------
5    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
     PURSUANT TO ITEMS 2(d) OR 2(e)                                   [_]


--------------------------------------------------------------------------------
6    CITIZENSHIP OR PLACE OF ORGANIZATION


     Texas
--------------------------------------------------------------------------------
               7    SOLE VOTING POWER

  NUMBER OF
                    32,763
   SHARES      _________________________________________________________________
               8    SHARED VOTING POWER
BENEFICIALLY

  OWNED BY          None
               -----------------------------------------------------------------
    EACH       9    SOLE DISPOSITIVE POWER

  REPORTING
                    32,763
   PERSON      _________________________________________________________________
               10   SHARED DISPOSITIVE POWER
    WITH

                    None
--------------------------------------------------------------------------------
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON


     32,763
--------------------------------------------------------------------------------
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*

     [ ]

--------------------------------------------------------------------------------
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)


     0.27%
--------------------------------------------------------------------------------
14   TYPE OF REPORTING PERSON*

     IA
--------------------------------------------------------------------------------
                      *SEE INSTRUCTIONS BEFORE FILLING OUT!




Item 1. Security and Issuer.

     This statement  relates to the Common Stock ("Common Shares") of Integrated
Security Systems,  Inc. (the "Company").  The principal executive offices of the
Company are located at 8200 Springwood Drive, Irving, Texas 75063.

Item 2. Identity and Background.

     (a) This  Statement is filed by  Renaissance  Capital  Growth & Income Fund
III,  Inc.  ("Renaissance  III"),  Renaissance  US Growth  Investment  Trust PLC
(formerly  called  Renaissance  US Growth  and Income  Trust PLC)  ("Renaissance
PLC"); and Renaissance Capital Group, Inc. ("RCG"), collectively (the "Reporting
Persons").

     (b) Renaissance III is a business  development  company regulated under the
Investment Company Act of 1940, as amended,  and organized under the laws of the
State of Texas,  with its  principal  business and  principal  office at 8080 N.
Central Expressway, Suite 210, LB-59, Dallas, Texas 75206-1857.

     Renaissance PLC is an investment  trust organized under the laws of England
and Wales.  Its address in the United States is c/o  Renaissance  Capital Group,
Inc., Investment Manager, 8080 N. Central Expressway,  Suite 210, LB-59, Dallas,
Texas 75206-1857.

     RCG is a corporation  organized under the laws of the State of Texas,  with
its principal business and principal office at 8080 N. Central Expressway, Suite
210, LB-59, Dallas, Texas 75206-1857. RCG is registered as an Investment Adviser
under the  Investment  Adviser Act of 1940,  and is the  Investment  Adviser for
Renaissance III and the Investment Manager for Renaissance PLC.

     Russell  Cleveland,  President  and  CEO of RCG  serves  on  the  Board  of
Directors of the Company.  Certain  information  concerning  the  directors  and
executive  officers  of the  Reporting  Persons  is set  forth on  Attachment  1
attached hereto and incorporated herein by reference.

     The  business  addresses of the  directors  and  executive  officers of the
Reporting  Persons  are  set  forth  on  Attachment  1  to  this  Statement  and
incorporated herein by reference.

     (c)  Renaissance  III and  Renaissance  PLC are engaged in the  business of
investing principally in emerging or undervalued U.S. public companies.

     (d) Neither any of the Reporting Persons nor, to the best knowledge of such
persons, any person named in Attachment 1 to this Statement,  has been convicted
in a criminal proceeding in the past five years (excluding traffic violations or
similar misdemeanors).

     (e) Neither any of the Reporting Persons nor, to the best knowledge of such
persons, any person named in Attachment 1 to this Statement, was during the last
five years a party to a civil proceeding of a judicial or administrative body of
competent  jurisdiction  as a result of which such person was or is subject to a
judgment,  decree, or final order enjoining future violations of, or prohibiting
or mandating  activities subject to, federal or state securities laws or finding
any violation with respect to such laws.

     (f) All persons named on Attachment 1 to this Statement are citizens of the
United  States  or the  United  Kingdom,  unless  otherwise  indicated  on  such
Attachment.

Item 3. Source and Amount of Funds or Other Consideration.


     The total  amount of funds  required  by  Renaissance  III to  acquire  the
securities  reported in Item 5(a) was  $4,933,503.  The source of such funds was
capital of Renaissance III.

     The total  amount of funds  required  by  Renaissance  PLC to  acquire  the
securities  reported in Item 5(a) was  $4,767,377.  The source of such funds was
capital of Renaissance PLC.



Item 4. Purpose of Transaction.

     The  Reporting  Persons each  acquired  beneficial  ownership of the Common
Stock  reported  in Item  5(a)  both in the  ordinary  course  of  business  for
investment  purposes and upon exchange of  indebtedness  in connection  with the
financial  restructuring  of the Company.  The President and CEO of  Renaissance
Capital  Group,  Inc.,  the  investment  advisor  to  Renaissance  III  and  the
investment manager of Renaissance PLC, Russell Cleveland,  has been appointed to
the board of directors of the Company.

     The Reporting  Persons may  participate in discussions  with  management or
third parties in which the Reporting  Person may suggest or take a position with
respect to potential changes in the operations, management, or capital structure
of such companies as a means of enhancing shareholder value. Such suggestions or
positions may relate to one or more of the transactions specified in clauses (a)
through (j) of Item 4 of the Schedule 13D form,  including,  without limitation,
such  matters as  disposing  of one or more  businesses,  selling  the  Company,
merging with another Company or acquiring another company or business,  changing
operating  or marketing  strategies,  changes in  management  or  marketing,  or
restructuring the Company's capitalization.

     Each Reporting Person continues to assess the Company's business, financial
condition, results of operations and prospects, general economic conditions, the
securities  markets  in  general  and  those  for the  Company's  securities  in
particular,  other developments and other investment  opportunities,  as well as
the Reporting Person's investment objectives. Depending on such assessments, one
or both of the  Reporting  Persons  may  acquire  additional  securities  or may
determine  to sell  or  otherwise  dispose  of  some  or all of its  holding  of
securities.

     Other than as described  above,  neither of the  Reporting  Persons has any
present plans or proposals  which relate to or would result in any  transaction,
change,  or event specified in clauses (a) through (j) of Item 4 of the Schedule
13D.

Item 5. Interest in Securities of the Issuer.

     (a) Renaissance III beneficially owns 24,232,908 Common Shares, Renaissance
PLC beneficially owns 23,338,233 Common Shares; and RCG beneficially owns 32,763
Common Shares. The Reporting Persons  beneficially own 47,628,302 Common Shares.
Based upon the 11,896,379 shares of the Company's stock outstanding as of August
31, 2002, as filed with the Securities and Exchange  Commission in the Company's
most  recent Form 10-K SB and using SEC  computation  rules,  the Common  Shares
beneficially  owned by  Renaissance  III,  Renaissance  PLC,  RCG,  and together
represent approximately 67.99%, 67.19%, 0.27% and 81.38%,  respectively,  of the
outstanding Common Stock of the Company on a fully converted basis.  Renaissance
III,  Renaissance  PLC,  and RCG  disclaim  that they are members of a group for
purposes of Regulation 13D.

     The Common Shares  beneficially  owned by Renaissance  III are comprised of
393,259  shares of Common  Stock;  129,185  shares of Common  Stock  received as
payment in kind for interest and/or dividends;  2,439,299 shares of Common Stock
issuable upon the exercise of warrants;  33,965 shares of Common Stock  issuable
upon the exercise of options;  187,500  shares of Common Stock issuable upon the
conversion  of 7,500  shares of Series D Preferred  Stock;  2,714,945  shares of
Common Stock  issuable upon  conversion of 21,720 shares of Series F Convertible
Preferred Stock ("Series F Preferred  Stock");  and 18,334,755  shares of Common
Stock  issuable  upon  conversion  of  146,678  shares of  Series G  Convertible
Preferred  Stock  ("Series  G  Preferred  Stock").  The  board of  directors  of
Renaissance III exercises  voting and investment  control over the securities of
the Company owned by it.



     The Common Shares  beneficially  owned by Renaissance  PLC are comprised of
393,259  shares of Common  Stock;  129,185  shares of Common  Stock  received as
payment in kind for interest and/or dividends;  2,433,617 shares of Common Stock
issuable upon the exercise of warrants;  187,500 shares of Common Stock issuable
upon the  conversion  of 7,500  shares of Series D  Preferred  Stock;  2,714,945
shares of Common Stock  issuable  upon  conversion  of 21,720 shares of Series F
Preferred Stock; and 17,504,125  shares of Common Stock issuable upon conversion
of  140,033  shares of Series G  Preferred  Stock.  The  board of  directors  of
Renaissance PLC exercises  voting and investment  control over the securities of
the Company owned by it.

     The Common Shares  beneficially owned by RCG are comprised of 32,763 shares
issuable upon the exercise of options.

     (b) Number of shares as to which Renaissance III has:
         (i)    Sole power to vote or to direct the vote
                24,232,908
         (ii)   Shared power to vote or to direct the vote
                None
         (iii)  Sole power to dispose or to direct the disposition of
                24,232,908
         (iv)   Shared power to dispose or to direct the disposition of
                None

         Number of shares as to which Renaissance PLC has:
         (i)    Sole power to vote or to direct the vote
                23,362,631
         (ii)   Shared power to vote or to direct the vote
                None
         (iii)  Sole power to dispose or to direct the disposition of
                23,362,631
         (iv)   Shared power to dispose or to direct the disposition of
                None

        Number of shares as to which RCG has:
        (i)     Sole power to vote or to direct the vote
                32,763
        (ii)    Shared power to vote or to direct the vote
                None
        (iii)   Sole power to dispose or to direct the disposition of
                32,763
        (iv)    Shared power to dispose or to direct the disposition of
                None

     (c) No transaction in the Common Shares was effected by a Reporting  Person
since the last  filing,  except as follows:  the receipt on January 7, 2003,  by
each  Renaissance  III and Renaissance PLC of 24,298 Common Shares as payment in
kind of $6,533.39 interest due to each Renaissance III and Renaissance PLC.

     (d) No person other than the Reporting  Persons has the right to receive or
the power to direct the receipt of dividends from, or the proceeds from the sale
of, the Common Shares beneficially owned by the Reporting Persons.

     (e) Not applicable.


Item 6. Contracts,  Arrangements,  Understandings, or Relationships With Respect
        to Securities of the Issuer.

        Not Applicable.

Item 7. Material to be Filed as Exhibits.

        Exhibit 1  Joint Filing Agreement Pursuant to Rule 13d-1(k)


                            [Signature page follows]




                                   SIGNATURES

     After reasonable inquire and to the best of their individual  knowledge and
belief,  the  signatories  below certify that the  information set forth in this
statement is true, complete, and correct as of this 17th day of January, 2003.

     The persons  whose  signatures  appear  below agree that this  statement on
Schedule 13D is filed on behalf of each of them.

                           RENAISSANCE CAPITAL GROWTH & INCOME FUND III, INC.



                               By: /S/  Russell Cleveland
                             Name: Russell Cleveland
                            Title: President and Chief Executive Officer


                           RENAISSANCE US GROWTH INVESTMENT TRUST PLC




                               By: /S/  Russell Cleveland
                             Name: Russell Cleveland
                            Title: Director


                            RENAISSANCE CAPITAL GROUP, INC.



                               By:  /S/  Russell Cleveland
                             Name:  Russell Cleveland
                            Title:  President and Chief Executive Officer



                                  ATTACHMENT 1

     The name, business address,  and principal  occupation of the directors and
executive officers of Renaissance III are as follows:

DIRECTORS
                                                                      Principal
Name                      Business Address                           Occupation

Edward O. Boshell, Jr.    c/o Renaissance Capital Group, Inc.        Director
                          8080 North Central Expressway
                          Suite 210, LB-59
                          Dallas, TX 75206-1857
Russell Cleveland         c/o Renaissance Capital Group, Inc.        Director
                          8080 North Central Expressway
                          Suite 210, LB-59
                          Dallas, TX 75206-1857
Peter Collins             c/o Renaissance Capital Group, Inc.        Director
                          8080 North Central Expressway
                          Suite 210, LB-59
                          Dallas, TX 75206-1857
Ernest C. Hill            c/o Renaissance Capital Group, Inc.        Director
                          8080 North Central Expressway
                          Suite 210, LB-59
                          Dallas, TX 75206-1857
OFFICERS

Russell Cleveland         c/o Renaissance Capital Group, Inc.    President and
                          8080 North Central Expressway          Chief Executive
                          Suite 210, LB-59                       Officer
                          Dallas, TX 75206-1857
John A. Schmit            c/o Renaissance Capital Group, Inc.    Vice President
                          8080 North Central Expressway
                          Suite 210, LB-59
                          Dallas, TX 75206-1857
Robert C. Pearson         c/o Renaissance Capital Group, Inc.    Vice President
                          8080 North Central Expressway
                          Suite 210, LB-59
                          Dallas, TX 75206-1857
Barbara A. Butschek       c/o Renaissance Capital Group, Inc.    Secretary and
                          8080 North Central Expressway          Treasurer
                          Suite 210, LB-59
                          Dallas, TX 75206-1857



     The name, business address,  and principal  occupation of the directors and
executive officers of Renaissance PLC are as follows:

DIRECTORS
                                                                      Principal
Name                            Business Address                     Occupation

Michael B. Cannan               c/o Sinclair Henderson Limited       Director
                                23 Cathedral Yard
                                  Exeter EX11HB
Russell Cleveland               c/o Sinclair Henderson Limited       Director
                                23 Cathedral Yard
                                  Exeter EX11HB
Ernest J. Fenton                c/o Sinclair Henderson Limited       Director
                                23 Cathedral Yard
                                  Exeter EX11HB
Lord Mark Fitzalan Howard OBE   c/o Sinclair Henderson Limited       Director
                                23 Cathedral Yard
                                  Exeter EX11HB
C. A. Rundell, Jr.              c/o Sinclair Henderson Limited       Director
                                23 Cathedral Yard
                                  Exeter EX11HB
William W. Vanderfelt           c/o Sinclair Henderson Limited       Director
                                23 Cathedral Yard
                                  Exeter EX11HB

OFFICERS

None





     The name,  business  address,  and  principal  occupation  of the executive
officers of RCG are as follows:

OFFICERS

Russell Cleveland         c/o Renaissance Capital Group, Inc.    President and
                          8080 North Central Expressway          Chief Executive
                          Suite 210, LB-59                       Officer
                          Dallas, TX 75206-1857
John A. Schmit            c/o Renaissance Capital Group, Inc.    Vice President
                          8080 North Central Expressway
                          Suite 210, LB-59
                          Dallas, TX 75206-1857
Robert C. Pearson         c/o Renaissance Capital Group, Inc.    Vice President
                          8080 North Central Expressway
                          Suite 210, LB-59
                          Dallas, TX 75206-1857
Barbara A. Butschek       c/o Renaissance Capital Group, Inc.    Secretary and
                          8080 North Central Expressway          Treasurer
                          Suite 210, LB-59
                          Dallas, TX 75206-1857



                                                                       EXHIBIT 1

                JOINT FILING AGREEMENT PURSUANT TO RULE 13d-1(k)

     The  undersigned  acknowledge  and agree that the  foregoing  statement  on
Schedule 13D is filed on behalf of each of the  undersigned and that all of each
of the  undersigned  without the  necessity  of filing  additional  joint filing
agreements.  The undersigned  acknowledge that each shall be responsible for the
timely filing of such  amendments,  and for the completeness and accuracy of the
information  concerning it contained  therein,  but shall not be responsible for
the completeness and accuracy of the information  concerning the others,  except
to the  extent  it knows or has  reason to  believe  that  such  information  is
inaccurate.  This  Joint  Filing  Agreement  may be  executed  in any  number of
counterparts  and all of such  counterparts  taken together shall constitute one
and the same instrument.

                              RENAISSANCE CAPITAL GROWTH & INCOME FUND III, INC.




                               By:     /S/  Russell Cleveland
                             Name:     Russell Cleveland
                            Title:     President and Chief Executive Officer


                               RENAISSANCE US GROWTH INVESTMENT TRUST PLC




                               By:     /S/  Russell Cleveland
                             Name:     Russell Cleveland
                            Title:     Director




                               RENAISSANCE CAPITAL GROUP, INC.



                               By:  /S/  Russell Cleveland
                             Name:  Russell Cleveland
                            Title:  President and Chief Executive Officer