Stefan Schmidt (Unibright), Kyle Thomas (Provide), Daniel Norkin (Envision Blockchain) May 21, 2020
The "Baseline-SAP-Dynamics Demo" shows a setup of different Enterprise Resource Planning Systems ("ERPs") using the Baseline Protocol to establish a common frame of reference on the public Ethereum Mainnet. The demo extends the Radish34 POC, showing a procurement process in a supply chain POC.
The open-source-available code of the development work on this demo evolved out of a Hackathon of the EEA Eminent Integration Taskforce members Unibright and Provide and is being made available alongside the Radish34 example.
The Baseline Protocol is an approach to using the public Mainnet as a common frame of reference between systems, including traditional corporate systems of record, any kind of database or state machine, and even different blockchains or DLTs. It is particularly promising as a way to reduce capital expense and other overheads while increasing operational integrity when automating business processes across multiple companies.
The approach is designed to appeal to security and performance-minded technology officers.
The setting of tasks in the Community Bootstrapping Phase of Baseline roadmap include extraction of concepts out of the Radish34 demo case into the protocol level. This demo therefore wants to extend the Radish34 case by integrating off-chain systems of record, to work out major challenges and provide solutions to them. The learnings should be manifested in a reference implementation that can support standards on the protocol itself.
The Use-case shown in the demo follows this path:
- A buyer, using SAP ERP, creates a Request For Proposal and sends it out to 2 of his potential suppliers
- One supplier, using a Microsoft Dynamics D365 ERP, receives the Request For Proposal, turning it into a Proposal with different price tiers, and sending it back to the buyer
- The buyer receives this Proposal, runs a comparison logic between different received proposals (including those of other suppliers), decides for one specific proposal, creates a corresponding Purchase Order and sends this to the supplier
- The supplier receives the Purchase Order and continues the process
The shown use-case does not claim to be complete. For example, no Master Service Agreements are involved, and a productive process would continue with additional steps including Delivery Notes, Invoices and Payments, which not in the scope of this demo.
The participants discovered the following challenges to be addressed indispensably:
- Establishing a non-centralized rendezvous point for multiparty business process automation, with such place also providing a solution for automating the setup of a baseline environment for each process participant (here: a supplier or a buyer) on its own infrastructure (i.e., using the participant's own AWS or Microsoft Azure credentials); and
- Establishing a minimum domain model, abstracting from the baseline target objects and offering a process oriented entry point for systems of record to integrate; and
- Integrating systems of record via a suitable service interface.
The proposed architecture and solutions to these challenges are presented in the next sections.
The main idea is to orchestrate the container environment for each baseline participant in a way it supports the addressing of the mentioned challenges at best.
Baseline itself is a microservice architecture, where the different components of this architecture are residing in docker containers. The existing radish demo applies a UI on top of this architecture to play through the demo case.
The architecture proposal of this demo builds upon the existing microservices, and adds layers to extract communication and integration with baseline towards an external system.
Microservice container environment for a participant in a baselined business process.
Baseline Containers: The microservices providing the Baseline Protocol and Radish34 use-case, based on this branch in GitHub, including several key fixes (i.e., unwiring cyclic dependencies within the existing Radish34 environment) and enhancements (i.e., point-to-point messaging between parties, use of a generalized circuit for baselining agreements).
Provide Containers: Provide's identity, key management, blockchain and messaging microservice API containers representing the technical entry point and translation layer for data and baseline protocol messages, and the provider of messaging infrastructure leveraged by the Baseline stack for secure point-to-point messaging.
Unibright Proxy: An extraction of the Unibright Connector (a blockchain integration platform), consisting of a simplified, context-related domain model and a RESTful api to integrate off-chain systems.
The actual system of record is integrated by on premise or cloud based integration software in the domain of the respective Operator, leading to the "full stack."
Implementing the demo use-case as described and demonstrated herein arguably illustrates levels of technical and operational complexity that would prevent most organizations from successfully applying the Baseline approach to their processes.
A viable rendezvous point where every participant in a multiparty business process can "meet in the middle" to ensure common agreements exists between each party (i.e., agreement on the use-case/solution) and each technical team (i.e., agreement on the protocols, data models, integration points, etc.) is a prerequisite to starting any actual technical integration. Such a rendezvous point can only be considered "viable" if it:
- is non-centralized; and
- can automate container orchestration across major infrastructure vendors (i.e., AWS and Microsoft Azure); and
- it can provide atomicity guarantees across all participants' container runtimes during protocol upgrades (i.e., to ensure forward compatibility and continuity for early adopters)
Shuttle is a bring-your-own-keys rendezvous point enabling turnkey container orchestration and integration across infrastructure vendors. Shuttle de-risks multiparty enterprise "production experiments " using the Baseline Protocol, providing continuity to early adopters of the Baseline approach. Provide is actively contributing to the standards and protocol while commercially supporting Shuttle projects.
The following complexities related to enabling the Baseline Protocol for a multiparty process such as the one illustrated by the Radish34 use-case are addressed by Shuttle as an enterprise rendezvous point:
- Container Orchestration
- Dependency Graph
- HD Wallets / Accounts
- Meta transaction relay (i.e., enterprise "gas pump")
- Smart Contracts (i.e., deployment, interaction)
- Organization Identity / PKI / x509
- Key material (i.e., for advanced privacy, messaging, zkSNARKs
- Baseline Protocol
- Circuit Registry
- Continuity & forward-compatibility (i.e., with rapidly-evolving protocols)
- Point-to-point messaging (i.e., proof receipts, etc.)
- Translation for DTO → Baseline Protocol
Baseline smart contract deployment to Ropsten testnet -- as of today, new projects are automatically subsidized by the Provide platform faucet when transaction broadcasts fail due to insufficient funds on every testnet. This same meta transaction / relay functionality will be helpful to organizations who want to participate in mainnet-enabled business processes in the future but do not want to hold Ether (i.e., when the Baseline Protocol has been deployed to the public Ethereum mainnet).*
Baseline smart contract suite intricacy, as illustrated by the contract-internal CREATE opcodes issued from within the Shuttle deployer contract. This functionality will become a standardized part of the Baseline protocol.*
Container orchestration "work product" -- each organization, using its own AWS/Azure credentials, leverages Shuttle to automate the configuration and deployment of 13 microservice container runtimes to cloud infrastructure under their own auspices. Provide also has capability of supporting this for on-premise deployments via a rack appliance.*
As the Baseline Protocol itself is still in its bootstrapping phase, it was not possible to just use a perfectly working "Baseline" endpoint, and feeding it with perfectly designed and standardized data for the use case. To establish a development environment, in which all participants (e.g. distributed software teams) can continue working and are not blocking each other. One solution to this can be a proxy.
A proxy is an intermediate layer that you establish in an integration process. The proxy only consists of simple domain model descriptions and basic operations like "Get List of Objects", "Get Specific Object" or "Create new Specific object". So we created a Domain Model for the procurement use case we wanted to show, and designed basic DTOs ("Data Transfer Objects") for all the object types involved, like RequestForProposals, Proposals, PurchaseOrders and so on. We also generated a service interface for all these DTOs automatically, and an authentication service as well.
The proxy defines the entry point for all integration partners in the use case scenario, agreeing on a common domain model and service layer. Still, every participant runs its own proxy, keeping the decentralised structure in place.
The proxy does not perform any business logic on its own (apart from some basic example mappings to make the first setup easier). The proxy leverages the local Provide stack as a gateway to the Baseline Protocol by way of this open-source NuGet package.
To help baselining SAP environments (following the Buyer role in this demo), Unibright configured the Unibright Connector (the integration platform of the Unibright Framework) to integrate and map the SAP models with the proxy automatically.
Object Mapping in the Unibright Connector
SAP Main Navigation Hierarchy for Purchasing Process, incl ME49 -> Price Comparison
Request for Quotation for 2 materials
Quotation to the Request, incl PriceScale referenced to the OrderItem
Resulting Purchase Order for Supplier ("Vendor" 100073)
Using the action Dashboard of the webversion of the Unibright connector to monitor SAP <> Proxy communication
To help baselining Dynamics 365 environments, Envision Blockchain built an extension called Radish34 for Dynamics 365 Finance and Operations. While this demo is showing the Dynamics 365 Supplier environment, it's important to note that the Radish34 extension is dually configured to support both roles (Buyer and Supplier). Below is a diagram showing the specific Dynamics 365 Finance and Operation modules used and the objects that are passing through the Radish34 extension.
Radish34 Implementation Flow Chart
After importing the extension, organizations will need to configure parameters to interact with the Unibright Proxy, setup Customer codes, Vendor codes, and setup custom Number sequences (which creates identifiers for Dynamics 365 objects).
Radish34 Parameter Module
When setting up Customers, you'll need to identify customers using the Customer Setup Module and input the External code used in the Radish Module. The Value is automatically filled out by the proxy.
Customer Setup Module
You can use the Radish34 service operations feature to make periodic or on-demand calls of the UB Proxy and receive RFPs.
Radish34 Service Operations Module
You can use the Sales Quotation module to view, adjust the prices for the items the Buyer is requesting, and send the quotation.
Sales Quotation Module
The Radish 34 Outgoing Proposals module allows you to approve, and send the proposal to the Buyer
Radish34 Outgoing Proposals Module
The Radish 34 Service Operations module will periodically check for incoming purchase orders from the Buyer
Radish34 Service Operations Module (Unchecked for incoming purchase orders)
The Sales Order modules to look at the approved proposal from the Buyer and confirm the sales order
Sales Order module