NHS Booking and Referral Standard

TKW

What is TKW?

TKW - Toolkit Workbench - is a tool to assist development and assurance of supplier solutions to meet BaRS (Booking and Referral Standard) requirements.

The tool supports testing of key high-level workflows e.g. a booking routine, including some of asynchronous ones, but is also capable of inspecting low level technical requirements. It reports the output in Validation Reports which clearly indicates to the reader where and why a test has failed. In addition, it supports consistent error states which are often difficult to create but required for development and assurance.

The BaRS TKW tooling is embedded into the INT environment, encompassing all the same end-to-end BaRS infrastructure that is mirrored in Production, rather than being downloaded and used in isolation. This ensures the same steps to deploy solutions to Production are followed during deployment to INT, and allowing testing of requests/responses to occur under Production-like conditions. Similarly, we're able to incorporate other key components, similar to those used in Production workflows, such as the UserTest Directory of Services (DoS). In the current BaRS Applications, the TKW tool relies on values in the UserTest DoS to elicit particular behavioural responses. The Sender will populate what are termed 'sentinel' values, such as the NHSD-Target-Identifier, with a particular value and TKW will respond with a certain Capability Statement, MessageDefinition etc. (See the 'Scenarios' section for detail).

It is important for Senders to remember TKW is a stateless receiver and is not checking the relationship between requests (except in a handful of stateful scenarios - outlined below). This is important when developing workflows such as linking a booking and referral and transactional Integrity.

Using TKW Portal

Suppliers must register a Portal account to start working with TKW but Senders and Receivers will use the tool in slightly different ways due to the nature of the requests/responses they require. Senders, needing somewhere to send requests and Receivers needing something to make requests of their solution.

During the registration process, the 'Target Identifier' and 'ODS Code' values are important to ensure requests are sent and received appropriately. As a Sender (to TKW), the HTTP Header NHSD-End-User-Organisation must include the ODS Code they registered with because TKW will collate requests based on this value. When reports are downloaded and viewed, only requests with that specific ODS Code in the header will be visible. As a Receiver, once logged into the portal and selecting the request(s) TKW is required to make of your endpoint, they will be directed to the Target Identifier registered against and, equally, downloaded reports will only relate to that specific value.

• Navigate to https://maitportal.testlab.nhs.uk/
• Click Register and complete the form below

• Email bookingandreferralstandard@nhs.net for a Target Identifier (this represents you on the Endpoint Catalogue)
• MAIT Team will need enable your account, email bookingandreferralstandard@nhs.net to advise this has been created
• Verify the account via email 
• Configure Multi-Factor Authentication 
• Access Portal Home screen 

Sender 

Once registered, requests can be made of TKW in any given workflow e.g. booking, validation etc. and the tool will record and provide downloadable validation reports for each request made. 

The Scenarios (including Stateful Scenarios) outlined below highlight how to elicit particular behaviour required, note the specific sentinel values for NHSD-Target-Identifier and patient NHS Number. As a Sender, the various requests can be made and TKW will repond accoridngly. 

NB: It is important for Senders to remember TKW is a stateless receiver and is not checking the relationship between requests (except in a handful of stateful scenarios - outlined below). This is important when developing workflows such as linking a booking and referral and transactional Integrity.

Receiver

A receiver can access the portal (once registered) to send either individual tests or an entire suite of tests to themselves. From the top menu bar, click 'Receive Requests' and the screen below will present -

The receiver selects the request they wish the TKW to make of their endpoint and clicks 'Execute Selected Tests' (bottom of the page). TKW will indicate when the requests have been processed.

Once all requested tests have been completed, the Validation Report can be downloaded - 

• from the top menu, select 'Download Reports'
• then click on the button 'Download Reports' (this packages the report and makes it available to download locally)
• from the top me, select 'Receiver Reports'
• click on the hyperlink of the required report to download locally (.zip format)

Scenarios

The TKW will respond to the scenarios outlined below. It does not hold the state of any prior request (unless specified in the Stateful scenarios) and the specific 'sentinel' values (in bold) must be used to elicit the required response where stated. 

NB: where 'Any' NHSD-Target-Identifier is specified, only those highlighted in this table will work for TKW. Any of the NHSD-Target-Identifiers configured for TKW. 

UserTest DoS Services

The sentinel values linked to UserTest DoS services can be found by searching with the following criteria.

INT Test Patient (traceable on SPINE)

The patient.Identifier sentinel values used to trigger Scenarios in TKW can be found on the INT Spine. The full patient details are outlined below.

Stateful Scenarios

TKW supports a limited stateful response for 111 to ED requests. This is a simulation of the real-world receiving end-point and mimics the expected behaviour of a Reciever solution.

This stateful behaviour is only demonstrated for a specific patient (NHS Number 9707606312) and per NHSD-End-User-Organisation - i.e. state will be persisted only between requests made by the same End User Organisation.

Note The stateful server will reset each night which will return all users back to the initial state.

State Transition Table indicating the responses the stateful TKW scenarios will support and the expected responses-