We have created a Test Environment for exactly this purpose. We use the same program and display libraries as our production environment, but have created a separate consolidated data library and separate library lists that use the test library. On a regular basis, we backup our production library and then restore it to the test library, thus allowing our test and production environments to be similar. When we want to do things such as you suggest, we run them in test to see the effects. Once we are satisfied, we duplicate the changes into the production environment. If we do not like the results, we either ignore them or recreate the test environment, depending on our needs. Stuart Sandler Director of Information Systems Krebs Engineers -----Original Message----- From: Andy Morrison [mailto:AndyMorrison@blueyonder.co.uk] Sent: Monday, December 10, 2001 2:06 PM To: firstname.lastname@example.org Subject: Re: JBA ML - OEP55A Can anyone advise me of the best way to test a program I have written to load files SLPI0, SLPI1, FLPI0, FLPI1, & FLPI2. We will be using the standard intercace calls for these files to update the Sales Ledger and the General Ledger. My initial thoughts were to create a duplicate Company and do the test runs to this new company, but III have been told that it is not really possible to create a complete duplicate of an existing company. Other thoughts center around a trial run and then restoring from back-up, but this seems to be a bit excessive and would result in significant down-time. Any suggestions would be greatly appreciated. Best Rgds, Andy M. Steele Road Ltd. _______________________________________________ This is the GEAC/JBA System 21 Users (JBAUSERS-L) mailing list To post a message email: JBAUSERS-L@midrange.com To subscribe, unsubscribe, or change list options, visit: http://lists.midrange.com/cgi-bin/listinfo/jbausers-l or email: JBAUSERS-Lemail@example.com Before posting, please take a moment to review the archives at http://archive.midrange.com/jbausers-l.