Index: /trunk/doc/ipptools/filenames.txt
===================================================================
--- /trunk/doc/ipptools/filenames.txt	(revision 12211)
+++ /trunk/doc/ipptools/filenames.txt	(revision 12212)
@@ -37,10 +37,35 @@
 Residual JPEG, bin 1:	expId.detresid.detId.iter.b2.jpg
 
-Phase 2 processed:	expId.p2.classId.fits
-
-
-
-
 Requirements:
 
 Explain PPIMAGE.OUTPUT, PPIMAGE.BIN1, PPIMAGE.BIN2, etc.
+
+#
+#  NEW CONVENTION
+#
+
+Naming convention
+--
+Files that are the result of IPP processing steps are to be named as follows:
+
+dir:
+    $exp_id/
+
+filename:
+    $exp_id.$step$seq.$chipname.fits
+
+Where $step is the 2 letter abbreviations for the step.
+    gyd  -> guide star/guidetool
+    chp  -> chip level processing/chiptool
+    cam  -> camera level processing/camtool
+    wrp  -> warp to sky/warptool
+    dif  -> image differencing/difftool
+    stk  -> image combination/stacktool
+
+Where $seq is the unique ID number provided by the [foo]tool at each step in
+the processing.
+
+Example
+--
+
+./oi4411o0021/oi4411o0021.ch0000001.ccd1.fits