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Version 1 Current »

Page Status: Updated for Istanbul -   
Component Status: Pending PTL updates and ArchCom Review

Last Reviewed on:

Certified by:

1. High Level Component Definition and Architectural Relationships 


  • Usecase-UI is an application portal which provides the ability to manage ONAP service instances. 

  • Usecase-UI allows customers to create/delete/update service instances, as well as to monitor the alarm and performance of these instances.

2. API definitions

Usecase-UI provides the following interfaces(Since Usecase-UI doesn't offer APIs,  we just provide the architecture of the two portal):


Interface Definition Interface CapabilitiesAPI Spec (Swagger)
UU-APIE-1Operator PortalUser interface for operators:
  • Customer management
  • Package management (including NS, VNF, PNF and IBN)
  • Service lifecycle management for use cases (including CCVPN, SOTN, 5G slicing, Intent-based and so on)
  • Monitor
  • Network topology management
usecase-UI architecture
UU-APIE-2Customer Portal

User interface for customer:

  • Service order
  • Service management
  • Service monitor
usecase-UI architecture

Note:   xxxI interface is a Component internal interface.  xxxxE interface is a component external interface

The provided UI interfaces are found at: Usecase-UI latest user guide

Usecase-UI consumes the following interfaces:

Interface Name

Interface Definition

 Interface Capabilities

API Spec (Swagger)
SDCE-6*SDC InterfaceAn interface to receive resource Templates from SDC design catalog.https://docs.onap.org/projects/onap-sdc/en/latest/offeredapis.html
SO-E-01*Service and Resource order requests

Service Instance management (Service, Volume Group, VF Module, VNF)

Health check, global and node.

Infrastructure provider management (Certificates, networks, sub-networks, security groups)

https://docs.onap.org/projects/onap-so/en/latest/api/offered_consumed_apis.html
VFCE-2Service Orchestrator / Policy InterfaceAn interface to allow Service Orchestrator and Policy request NS Lifecycle Management ( ETSI SOL-005 ).https://docs.onap.org/projects/onap-vfc-nfvo-lcm/en/latest/platform/APIs/index.html
AAIE-1*Inventory Service Interface

An interface to create, update, query, and delete resource information and relationships.

AAI REST API Documentation

MSBE-1*Micro Service Bus InterfaceAn interface for registration and discovery with the ONAP Micro Service Bus.Microservice Bus API Documentation
etsicatalogAPIE1~4Modelling Tosca Parser Interfaces and catalog interfacesAn interface for the Tosca Parser from Modelling project to parse the NS and VNF Descriptors.Etsicatalog API Document
DCAE-DESDCAE Service ComponentsAn interface for DataLake Exposure Service Rest APIs

DCAE R8 M2 Architecture Review

*Current description is based on Guilin documentation, will be updated accordingly if correspondent API update in Honolulu.

3. Component Description:

Usecase-UI  is a web application which contains  three parts: 

  • Usecase-UI GUI
  • Usecase-UI Server
  • Usecase-UI NLP Server(from I Release)
  • Usecase-UI INTENT ANALYSIS SERVER(from K Release)

4. known system limitations

Now the component Redundancy and scaling depends on Kubernetes.

5. Used Models

Usecase-UI use the following models:

  • TOSCA  - VNF Descriptor/NS Descriptor  ETSI NFV SOL001  v2.4.1 & v2.5.1

6. System Deployment Architecture

Usecase-UI consists of 6 containers:

  • Usecase-UI-Operator Portal

  • Usecase-UI-Operator Server

  • Usecase-UI-Customer Portal
  • Usecase-UI-Customer Backend
  • Usecase-UI-NLP Server(from H Release)
  • Usecase-UI-Intent-Analysis Server(from K Release)

7. New Release Capabilities

The Kohn Release supports six capabilities:   

  1. Add PyTorch framework to support more models (TenserFlow framework has been added since Honolulu Release).
  2. Improve the accuracy rate of intent translation with multiple models.
  3. Enhance the function of STT (speech to text).
  4. Add intent analysis micro service in UUI.
  5. Add intent format input in UUI portal.
  6. Use common postgresql chart instead of embedding your database server. 

8. References

Usecase-UI Installation & User Guide: usecase-ui docs



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