<PAGE>   1
        EXHIBIT 24 TO ANNUAL REPORT ON FORM 10-K FOR SYMIX SYSTEMS, INC.

                                POWER OF ATTORNEY

         KNOWN ALL MEN BY THESE PRESENTS, that the undersigned officer and/or
director of Symix Systems, Inc., an Ohio corporation which is about to file with
the Securities and Exchange Commission, under the provisions of the Securities
Exchange Act of 1934, as amended, an Annual Report on Form 10-K for the fiscal
year ended June 30, 2000, hereby constitutes and appoints Stephen A. Sasser,
Lawrence W. DeLeon and Daniel P. Buettin and each of them, his true and lawful
attorneys-in-fact and agents with full power of substitution and resubstitution,
for him and in his name, place and stead in any and all capacities, to sign such
Annual Report on Form 10-K, and to file the same with all exhibits and financial
statements and schedules thereto, and other documents in connection therewith,
including any amendment thereto, with the Securities and Exchange Commission,
granting unto said attorneys-in-fact and agents, and each of them, full power
and authority to do and perform each and every act and thing requisite and
necessary to be done in and about the premises, as fully to all intents and
purposes as he might or could do in person, hereby ratifying and confirming all
that said attorneys-in-fact and agents or any of them or their or his substitute
or substitutes may lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned has hereunder set his hand this
15th day of August, 2000.

                                           /s/ Lawrence J. Fox
                                           -----------------------------------
                                           Lawrence J. Fox
                                           Chairman of the Board
                                           Director



<PAGE>   2
                                POWER OF ATTORNEY

         KNOWN ALL MEN BY THESE PRESENTS, that the undersigned officer and/or
director of Symix Systems, Inc., an Ohio corporation which is about to file with
the Securities and Exchange Commission, under the provisions of the Securities
Exchange Act of 1934, as amended, an Annual Report on Form 10-K for the fiscal
year ended June 30, 2000, hereby constitutes and appoints Daniel P. Buettin and
Lawrence W. DeLeon, and each of them, his true and lawful attorneys-in-fact and
agents with full power of substitution and resubstitution, for him and in his
name, place and stead in any and all capacities, to sign such Annual Report on
Form 10-K, and to file the same with all exhibits and financial statements and
schedules thereto, and other documents in connection therewith, including any
amendment thereto, with the Securities and Exchange Commission, granting unto
said attorneys-in-fact and agents, and each of them, full power and authority to
do and perform each and every act and thing requisite and necessary to be done
in and about the premises, as fully to all intents and purposes as he might or
could do in person, hereby ratifying and confirming all that said
attorneys-in-fact and agents or any of them or their or his substitute or
substitutes may lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned has hereunder set his hand this
15th day of August, 2000.


                                           /s/ Stephen A. Sasser
                                           ----------------------------------
                                           Stephen A. Sasser
                                           President, Chief Executive Officer
                                           and Director


<PAGE>   3
                                POWER OF ATTORNEY

         KNOWN ALL MEN BY THESE PRESENTS, that the undersigned officer and/or
director of Symix Systems, Inc., an Ohio corporation which is about to file with
the Securities and Exchange Commission, under the provisions of the Securities
Exchange Act of 1934, as amended, an Annual Report on Form 10-K for the fiscal
year ended June 30, 2000, hereby constitutes and appoints Stephen A. Sasser and
Daniel P. Buettin and each of them, his true and lawful attorneys-in-fact and
agents with full power of substitution and resubstitution, for him and in his
name, place and stead in any and all capacities, to sign such Annual Report on
Form 10-K, and to file the same with all exhibits and financial statements and
schedules thereto, and other documents in connection therewith, including any
amendment thereto, with the Securities and Exchange Commission, granting unto
said attorneys-in-fact and agents, and each of them, full power and authority to
do and perform each and every act and thing requisite and necessary to be done
in and about the premises, as fully to all intents and purposes as he might or
could do in person, hereby ratifying and confirming all that said
attorneys-in-fact and agents or any of them or their or his substitute or
substitutes may lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned has hereunder set his hand this
15th day of August, 2000.


                                           /s/ Lawrence W. DeLeon
                                           -----------------------------------
                                           Lawrence W. DeLeon
                                           Executive Vice President Symix
                                           Worldwide Field Operations



<PAGE>   4
                                POWER OF ATTORNEY

         KNOWN ALL MEN BY THESE PRESENTS, that the undersigned officer and/or
director of Symix Systems, Inc., an Ohio corporation which is about to file with
the Securities and Exchange Commission, under the provisions of the Securities
Exchange Act of 1934, as amended, an Annual Report on Form 10-K for the fiscal
year ended June 30, 2000, hereby constitutes and appoints Stephen A. Sasser,
Lawrence W. DeLeon and Daniel P. Buettin and each of them, his true and lawful
attorneys-in-fact and agents with full power of substitution and resubstitution,
for him and in his name, place and stead in any and all capacities, to sign such
Annual Report on Form 10-K, and to file the same with all exhibits and financial
statements and schedules thereto, and other documents in connection therewith,
including any amendment thereto, with the Securities and Exchange Commission,
granting unto said attorneys-in-fact and agents, and each of them, full power
and authority to do and perform each and every act and thing requisite and
necessary to be done in and about the premises, as fully to all intents and
purposes as he might or could do in person, hereby ratifying and confirming all
that said attorneys-in-fact and agents or any of them or their or his substitute
or substitutes may lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned has hereunder set his hand this
15th day of August, 2000.


                                           /s/ John T. Tait
                                           -----------------------------------
                                           John T. Tait
                                           Director


<PAGE>   5
                                POWER OF ATTORNEY

         KNOWN ALL MEN BY THESE PRESENTS, that the undersigned officer and/or
director of Symix Systems, Inc., an Ohio corporation which is about to file with
the Securities and Exchange Commission, under the provisions of the Securities
Exchange Act of 1934, as amended, an Annual Report on Form 10-K for the fiscal
year ended June 30, 2000, hereby constitutes and appoints Stephen A. Sasser,
Lawrence W. DeLeon and Daniel P. Buettin and each of them, his true and lawful
attorneys-in-fact and agents with full power of substitution and resubstitution,
for him and in his name, place and stead in any and all capacities, to sign such
Annual Report on Form 10-K, and to file the same with all exhibits and financial
statements and schedules thereto, and other documents in connection therewith,
including any amendment thereto, with the Securities and Exchange Commission,
granting unto said attorneys-in-fact and agents, and each of them, full power
and authority to do and perform each and every act and thing requisite and
necessary to be done in and about the premises, as fully to all intents and
purposes as he might or could do in person, hereby ratifying and confirming all
that said attorneys-in-fact and agents or any of them or their or his substitute
or substitutes may lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned has hereunder set his hand this
15th day of August, 2000.

                                           /s/ Duke W. Thomas
                                           -----------------------------------
                                           Duke W. Thomas
                                           Director


<PAGE>   6
                                POWER OF ATTORNEY

         KNOWN ALL MEN BY THESE PRESENTS, that the undersigned officer and/or
director of Symix Systems, Inc., an Ohio corporation which is about to file with
the Securities and Exchange Commission, under the provisions of the Securities
Exchange Act of 1934, as amended, an Annual Report on Form 10-K for the fiscal
year ended June 30, 2000, hereby constitutes and appoints Stephen A. Sasser,
Lawrence W. DeLeon and Daniel P. Buettin and each of them, his true and lawful
attorneys-in-fact and agents with full power of substitution and resubstitution,
for him and in his name, place and stead in any and all capacities, to sign such
Annual Report on Form 10-K, and to file the same with all exhibits and financial
statements and schedules thereto, and other documents in connection therewith,
including any amendment thereto, with the Securities and Exchange Commission,
granting unto said attorneys-in-fact and agents, and each of them, full power
and authority to do and perform each and every act and thing requisite and
necessary to be done in and about the premises, as fully to all intents and
purposes as he might or could do in person, hereby ratifying and confirming all
that said attorneys-in-fact and agents or any of them or their or his substitute
or substitutes may lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned has hereunder set his hand this
15th day of August, 2000.

                                           /s/ Larry L. Liebert
                                           -----------------------------------
                                           Larry L. Liebert
                                           Director




<PAGE>   7
                                POWER OF ATTORNEY

         KNOWN ALL MEN BY THESE PRESENTS, that the undersigned officer and/or
director of Symix Systems, Inc., an Ohio corporation which is about to file with
the Securities and Exchange Commission, under the provisions of the Securities
Exchange Act of 1934, as amended, an Annual Report on Form 10-K for the fiscal
year ended June 30, 2000, hereby constitutes and appoints Stephen A. Sasser,
Lawrence W. DeLeon and Daniel P. Buettin and each of them, his true and lawful
attorneys-in-fact and agents with full power of substitution and resubstitution,
for him and in his name, place and stead in any and all capacities, to sign such
Annual Report on Form 10-K, and to file the same with all exhibits and financial
statements and schedules thereto, and other documents in connection therewith,
including any amendment thereto, with the Securities and Exchange Commission,
granting unto said attorneys-in-fact and agents, and each of them, full power
and authority to do and perform each and every act and thing requisite and
necessary to be done in and about the premises, as fully to all intents and
purposes as he might or could do in person, hereby ratifying and confirming all
that said attorneys-in-fact and agents or any of them or their or his substitute
or substitutes may lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned has hereunder set his hand this
15th day of August, 2000.


                                           /s/ James A. Rutherford
                                           -----------------------------------
                                           James A. Rutherford
                                           Director


<PAGE>   8
                                POWER OF ATTORNEY

         KNOWN ALL MEN BY THESE PRESENTS, that the undersigned officer and/or
director of Symix Systems, Inc., an Ohio corporation which is about to file with
the Securities and Exchange Commission, under the provisions of the Securities
Exchange Act of 1934, as amended, an Annual Report on Form 10-K for the fiscal
year ended June 30, 2000, hereby constitutes and appoints Stephen A. Sasser,
Lawrence W. DeLeon and Daniel P. Buettin and each of them, his true and lawful
attorneys-in-fact and agents with full power of substitution and resubstitution,
for him and in his name, place and stead in any and all capacities, to sign such
Annual Report on Form 10-K, and to file the same with all exhibits and financial
statements and schedules thereto, and other documents in connection therewith,
including any amendment thereto, with the Securities and Exchange Commission,
granting unto said attorneys-in-fact and agents, and each of them, full power
and authority to do and perform each and every act and thing requisite and
necessary to be done in and about the premises, as fully to all intents and
purposes as he might or could do in person, hereby ratifying and confirming all
that said attorneys-in-fact and agents or any of them or their or his substitute
or substitutes may lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned has hereunder set his hand this
10th day of August, 2000.


                                           /s/ Roger D. Blackwell
                                           -----------------------------------
                                           Roger D. Blackwell
                                           Director



<PAGE>   9
                                POWER OF ATTORNEY

         KNOWN ALL MEN BY THESE PRESENTS, that the undersigned officer and/or
director of Symix Systems, Inc., an Ohio corporation which is about to file with
the Securities and Exchange Commission, under the provisions of the Securities
Exchange Act of 1934, as amended, an Annual Report on Form 10-K for the fiscal
year ended June 30, 2000, hereby constitutes and appoints Stephen A. Sasser,
Lawrence W. DeLeon and Daniel P. Buettin and each of them, his true and lawful
attorneys-in-fact and agents with full power of substitution and resubstitution,
for him and in his name, place and stead in any and all capacities, to sign such
Annual Report on Form 10-K, and to file the same with all exhibits and financial
statements and schedules thereto, and other documents in connection therewith,
including any amendment thereto, with the Securities and Exchange Commission,
granting unto said attorneys-in-fact and agents, and each of them, full power
and authority to do and perform each and every act and thing requisite and
necessary to be done in and about the premises, as fully to all intents and
purposes as he might or could do in person, hereby ratifying and confirming all
that said attorneys-in-fact and agents or any of them or their or his substitute
or substitutes may lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned has hereunder set his hand this
15th day of August, 2000.


                                           /s/ Guy de Chazal
                                           -----------------------------------
                                           Guy de Chazal
                                           Director



<PAGE>   10
                                POWER OF ATTORNEY

         KNOWN ALL MEN BY THESE PRESENTS, that the undersigned officer and/or
director of Symix Systems, Inc., an Ohio corporation which is about to file with
the Securities and Exchange Commission, under the provisions of the Securities
Exchange Act of 1934, as amended, an Annual Report on Form 10-K for the fiscal
year ended June 30, 2000, hereby constitutes and appoints Stephen A. Sasser,
Lawrence W. DeLeon and Daniel P. Buettin and each of them, his true and lawful
attorneys-in-fact and agents with full power of substitution and resubstitution,
for him and in his name, place and stead in any and all capacities, to sign such
Annual Report on Form 10-K, and to file the same with all exhibits and financial
statements and schedules thereto, and other documents in connection therewith,
including any amendment thereto, with the Securities and Exchange Commission,
granting unto said attorneys-in-fact and agents, and each of them, full power
and authority to do and perform each and every act and thing requisite and
necessary to be done in and about the premises, as fully to all intents and
purposes as he might or could do in person, hereby ratifying and confirming all
that said attorneys-in-fact and agents or any of them or their or his substitute
or substitutes may lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned has hereunder set his hand this
15th day of August, 2000.


                                           /s/ Barry Goldsmith
                                           -----------------------------------
                                           Barry Goldsmith
                                           Director