--- /dev/null
+/**
+ *
+ */
+package jalview.ws.params;
+
+import java.util.List;
+
+/**
+ * A web service parameter set
+ *
+ */
+public interface WsParamSetI
+{
+ /**
+ * Human readable name for parameter set
+ * @return unique string (given applicable URLs)
+ */
+ public String getName();
+ /**
+ * @return notes about this parameter set
+ */
+ public String getDescription();
+ /**
+ * the service endpoints for which this parameter set is valid
+ * @return one or more URLs
+ */
+ public String[] getApplicableUrls();
+ /**
+ *
+ * @return null, or the file used to store this parameter set.
+ */
+ public String getSourceFile();
+
+ /**
+ * set the filename used to store this parameter set.
+ * @newfile
+ */
+ public void setSourceFile(String newfile);
+ /**
+ * is this a preset or a user modifiable parameter set
+ * @return true if set can be modified
+ */
+ public boolean isModifiable();
+ /**
+ *
+ * @return arguments in preset
+ */
+ List<ArgumentI> getArguments();
+ /**
+ * set the arguments for the preset. Should this preset instance be unmodifiable, an Error should be thrown.
+ * @param args
+ */
+ public void setArguments(List<ArgumentI> args);
+}