diff --git a/api/default/error-model/definitions/error-model.tmpl b/api/default/error-model/definitions/error-model.tmpl
new file mode 100644
index 0000000..5784ed2
--- /dev/null
+++ b/api/default/error-model/definitions/error-model.tmpl
@@ -0,0 +1,52 @@
+# Sequence diagram
+
+This represents the sequence diagram for 
+service names {{ range .ServiceNames}}**{{.}}** {{ end }} 
+
+```mermaid
+sequenceDiagram
+
+    participant consumer as Consumer
+    participant gateway as Gateway
+    participant microservice as ServiceName
+    participant feature as Svc Feature
+    participant authz as Authorisation
+    participant log as Logger
+{{ range .Apis}}participant {{ .Name }} as Svc{{ .Name }}
+{{ end }}
+
+    consumer->>+gateway: {{.ServicePoints}}
+    activate consumer
+    
+    note right of gateway: Authentication check at GW
+    gateway->>+microservice: {{.ServicePoints}}
+
+    microservice->>+authz: Validate requestor
+    note right of authz: Authorise to function
+    authz-->>-microservice: 200 or 401/403 status
+
+    microservice->>+feature: Check feature switch
+    feature-->>-microservice: 200 or 401/403 status
+
+    microservice-)log: log request/response
+	{{ range .Apis}}
+    microservice-->>+{{ .Name }}: link {{ .Url }}
+	note right of {{ .Name }}: Explanation of what happens
+	{{ .Name }}-->>-microservice: 200 OK response
+	{{ end }}
+
+    alt 200 OK
+    microservice-->>gateway: 200 OK response
+    gateway-->>consumer: 200 OK response
+    else not OK, error
+    microservice-->>-gateway: !200 ERR response
+    gateway-->>-consumer: !200 ERR response
+    end
+    deactivate consumer
+
+```
+
+***Note***: Adjust the default sequence diagram above
+
+Copyright {{.QaskxDot.ServiceOwner}}
+Contact {{.QaskxDot.ServiceOwnerEmail}}
diff --git a/api/default/error-model/error-model.json b/api/default/error-model/error-model.json
new file mode 100644
index 0000000..2c8e2f4
--- /dev/null
+++ b/api/default/error-model/error-model.json
@@ -0,0 +1,20 @@
+{
+    "name": "errm01",
+    "guide": "{{.SelfFolder}}/errm01.md",
+    "description": "Default error model",
+    "templates": [
+        {
+            "engine": "",
+            "folder": "{{.SelfFolder}}/definitions/{{.TemplateName}}",
+            "file_name": "error-model.tmpl",
+            "output_folder": "^/docsxxx",
+            "output_name": "seqdgm01.md",
+            "section": "",
+            "model": {
+                "activity": {
+                    "category": "OTHER"
+                }
+            }
+       }
+    ]
+}
\ No newline at end of file
diff --git a/rediops/default/definitions/default/.well-known/devops.json b/rediops/default/definitions/default/.well-known/devops.json
index a74fb83..dc05cd7 100644
--- a/rediops/default/definitions/default/.well-known/devops.json
+++ b/rediops/default/definitions/default/.well-known/devops.json
@@ -91,13 +91,16 @@
         {
             "platform": "",
             "script": "",
-            "deploy": {
+            "activity": {
+                "id": "CHANGE.ME",
                 "category": "DEPLOY",
                 "name": "rpm",
                 "url": ""
             },
             "guide": "",
-            "playbook": ""
+            "name": "CHANGE.ME",
+            "pre": "",
+            "post": ""
         }
     ],
     "devops_version": "0.0.1",
diff --git a/rediops/default/definitions/default/build/qaskx_generate.ps1 b/rediops/default/definitions/default/build/qaskx_generate.ps1
index a141a08..d37532f 100644
--- a/rediops/default/definitions/default/build/qaskx_generate.ps1
+++ b/rediops/default/definitions/default/build/qaskx_generate.ps1
@@ -1,10 +1,11 @@
 param (
-    [string] $OpenAPI = "*rediops"
+    [string] $OpenAPI = "*rediops",
+    [bool] $NoCache
 ) 
 
 $startCd = Get-Location
 
-$prjDir = qaskx-cli tools dir
+$prjDir = qaskx-cli tools dir ^/
 
 if ($prjDir -eq "") {
     Throw "No home project directory found"
@@ -45,29 +46,65 @@ if ($OpenAPI -eq "*rediops") {
     foreach ($api in $list) {
         $parts = $api -split "`t"
 
-        if ($parts[3] -ne "" -and $parts[1] -eq "OpenAPI") {
-            Write-Host "Generate from OpenAPI definition '$($parts[3])'" -ForegroundColor Yellow
-            $OpenAPI = $parts[3]
-            $configFile = Join-Path -Path $prjDir -ChildPath ".\build\types.cfg.yaml"
-            & $oapigenItem  --config $configFile $OpenAPI
-            if ($lastexitcode -ne 0) {
-                Write-Host "`nAPI Types generation error" -ForegroundColor Red
-                Set-Location $startCd
-                Throw "API Types generation error detected" 
-            }
-            Write-Host "API type code generated"
+        if ($NoCache -ne $true -and $parts[3] -ne "") {
+            if ($parts[3].StartsWith("https://") -or $parts[3].StartsWith("http://")) {
+                # Note that file extension may not / unlikely be included
+                $fileName = $parts[0]
+                if ($fileName -eq "") {
+                    # Falback name, though this may fail with invalid name
+                    $partsRemote = $parts[3] -split "/"
+                    $fileName = $partsRemote[$partsRemote.Count-1]
+                }
+
+                if ($fileName -ne "") {
+                    $outPathFile = Join-Path -Path $prjDir -ChildPath ("build/cache/" + $fileName) 
+                    $null = Invoke-WebRequest -Uri $parts[3] -OutFile $outPathFile
+                }
+            }
+        }
+
+        if ($parts[3] -ne "" -and $parts[1] -eq "OpenAPI") {
+            $apiName = $parts[0]
+            if ($apiName -eq "") {
+                $apiName = "OPENAPI"
+            }
+            Write-Host "Generate $apiName from OpenAPI definition '$($parts[3])'" -ForegroundColor Yellow
+            if ($parts[3].StartsWith("https://") -or $parts[3].StartsWith("http://")) {
+                $OpenAPI = $parts[3]
+            } else {
+                $OpenAPI = qaskx-cli tools dir $parts[3]
+            }
+
+            # Check for matching config file
+            $configFile = Join-Path -Path $prjDir -ChildPath ("build/"+ $parts[0] + "_types.cfg.yaml")
+            if ( (Test-Path $configFile -PathType Leaf) -eq $false) {
+                $configFile = Join-Path -Path $prjDir -ChildPath "build/types.cfg.yaml"
+            } 
 
-            $configFile = Join-Path -Path $prjDir -ChildPath ".\build\server.cfg.yaml"
             & $oapigenItem  --config $configFile $OpenAPI
             if ($lastexitcode -ne 0) {
-                Write-Host "`nAPI Server generation error" -ForegroundColor Red
+                Write-Host "`n$apiName API Types generation error" -ForegroundColor Red
                 Set-Location $startCd
-                Throw "API Server generation error detected" 
+                Throw "$apiName API Types generation error detected" 
             }
-            Write-Host "API server code generated"
+            Write-Host "$apiName API type code generated from $configFile"
+
+            # Check for matching config file
+            $configFile = Join-Path -Path $prjDir -ChildPath ("build/"+ $parts[0] + "_server.cfg.yaml")
+            if ( (Test-Path $configFile -PathType Leaf) -eq $false) {
+                $configFile = Join-Path -Path $prjDir -ChildPath "build/server.cfg.yaml"
+            }
+
+            & $oapigenItem  --config $configFile $OpenAPI
+            if ($lastexitcode -ne 0) {
+                Write-Host "`n$apiName API Server generation error" -ForegroundColor Red
+                Set-Location $startCd
+                Throw "$apiName API Server generation error detected" 
+            }
+            Write-Host "$apiName API server code generated from $configFile"
 
             $processed = $true
-            break
+            #break
         }
     }
 
@@ -97,5 +134,8 @@ if ($OpenAPI -eq "*rediops") {
     Write-Host "API server code generated"
 }
 
+Set-Location $prjDir
+go mod tidy
+
 Set-Location $startCd
 Write-Host "Generation complete. Please check logs." -ForegroundColor Yellow