diff --git a/v1/Application.cfc b/v1/Application.cfc
index 6d4aca8..420c76d 100644
--- a/v1/Application.cfc
+++ b/v1/Application.cfc
@@ -71,7 +71,7 @@
 		
 		//variables.framework.docs={};
 		variables.framework.docs.APIName="Deck API";
-		variables.framework.docs.APIVersion="0.024";
+		variables.framework.docs.APIVersion="0.025";
 		
 		variables.framework.globalHeaders = structNew();
 		variables.framework.globalHeaders["Access-Control-Expose-Headers"] = "Location"; 
diff --git a/v1/lib/rest_api_helper.cfc b/v1/lib/rest_api_helper.cfc
index 382879d..3a37616 100644
--- a/v1/lib/rest_api_helper.cfc
+++ b/v1/lib/rest_api_helper.cfc
@@ -269,7 +269,7 @@
 	<cfargument name="ex" type="struct" required="true" />
 	<cfargument name="title" type="string" required="false" />
 	
-	<cfset var detail = listAppend(#ARGUMENTS.ex.message#,#ARGUMENTS.ex.detail#,":" )/>
+	<cfset var detail = listAppend(#ARGUMENTS.ex.message#,#ARGUMENTS.ex.detail#,": " )/>
 	<cfset var title = structKeyExists(ARGUMENTS,"title") ? #ARGUMENTS.title# : #ARGUMENTS.message# />	
 	
 	<cfreturn formatMessage(detail, title) />
diff --git a/v1/resources/instance_operation_cfs_param_ls.cfc b/v1/resources/instance_operation_cfs_param_ls.cfc
index 7b5c4e6..d76b93c 100644
--- a/v1/resources/instance_operation_cfs_param_ls.cfc
+++ b/v1/resources/instance_operation_cfs_param_ls.cfc
@@ -26,10 +26,14 @@
 		<cfargument name="page" type="string" hint="type:integer" default="1"/>	
 		<cfargument name="orderBy" type="string" hint="type:string, description:comma-separated list of fields to sort by, example:fld1.ASC,fld2.DESC,fld3.ASC" default=""/>
 		
-		<cfargument name="instanceOperationUid" type="string" required=true hint="type:guid"/>
+		<cfargument name="instanceOperationUid" type="string" required=false hint="type:guid"/>
 		
 		<!---parse and validate request parameters--->
 		<cftry>
+			<!--- *** Добавить проверку ссылочной целостности --->
+			<cfif !this.helper.keyExistsAndValid(arguments,"instanceOperationUid","guid")>
+				<cfthrow type="invalidParamValue" message="Missing required parameter" detail="instanceOperationUid is missing or not a valid GUID"/>
+			</cfif>
 			<cfset this.helper.validateField(arguments, "pageSize", "integer")/>
 			<cfset this.helper.validateField(arguments, "page", "integer")/>
 			
@@ -50,7 +54,7 @@
 			select 
 				<m:field_set titleMapOut="local.titleMap" lengthOut="fieldCount">
 				<m:field title="instance_operation_cfs_param_uid">iop.instance_operation_cfs_param_uid::text as instance_operation_cfs_param_uid</m:field>
-				<m:field title="instance_operation_uid">instance_operation_uid::text as instance_operation_uid</m:field>
+				<m:field title="instance_operation_uid">iop.instance_operation_uid::text as instance_operation_uid</m:field>
 				<m:field title="svc_operation_cfs_param_id">iop.svc_operation_cfs_param_id</m:field>
 				<m:field title="param_value">iop.param_value</m:field>
 				<m:field title="dt_created">to_char(iop.dt_created, 'YYYY-MM-DD"T"HH24:MI:SS.FF3TZHTZM') as dt_created</m:field>
@@ -226,7 +230,8 @@
 		<!--- *** Вероятно, стоит возвращать конкретную ругань --->
 		<!--- принадлежит ли параметр к данному сервису, проверяется выше  --->
 		<cfquery name="qSvcOperationCfsParam">
-			select sop.svc_operation_cfs_param
+			select sop.svc_operation_cfs_param_id
+			,sop.svc_operation_cfs_param
 			,sop.value_list			
 			,sop.data_type			
 			,sop.is_required
@@ -238,7 +243,7 @@
 			where sop.svc_operation_cfs_param_id=<cfqueryparam cfsqltype="cf_sql_integer" value="#arguments.svcOperationCfsParamId#"/>	
 		</cfquery>
 		
-		<cfif qSvcOperationCfsParam.is_required AND len(arguments.paramValue) EQ 0>
+		<cfif qSvcOperationCfsParam.is_required GT 0 AND len(arguments.paramValue) EQ 0>
 			<!--- <cfreturn "Missing required parameter (#qSvcOperationCfsParam.svc_operation_cfs_param#)"/>	 --->
 			<cfthrow type="invalidParamValue" message="Missing required parameter (#qSvcOperationCfsParam.svc_operation_cfs_param#)"/>		
 		<cfelseif len(arguments.paramValue) AND NOT checkValue(arguments.paramValue,qSvcOperationCfsParam.data_type)>