Cetrix Blog

EDI Legacy Integration vs. Enterprise Bus Platform

Paul Nilsen - Mar 28, 2018 6:54:25 AM

What is EDI?

EDI is a computer to computer communication standard for transferring formatted messages between two organizations doing business together. These organizations, called trading partners, must use a common EDI standard language, such as UN/EDIFACT, ANSI ASC X12, etc., to properly exchange information. While EDI requires two parties, the connections can either be direct or through a third party EDI service provider.

 

EDI Process

An EDI interchange consists of the following major processes:

  • Mapping: application internal formatted data mapped to EDI counterparts
  • Translation: EDI documents are created or validated
  • Send: EDI documents are sent/received

EDI outbound process - Cetrix Cloud Services

 

Figure 1 : EDI outbound process

EDI inbound process - Cetrix Cloud Services

Figure 2 : EDI inbound process

You also want all your EDI communications audited, logged, thoroughly detailed, and traceable as the process moves critical data between you and your business partners.

 

EDI Benefits

Developed in the mid-60s, EDI replaced paper-based business transactions. It was created to provide a number of benefits compared to the old paper-based communication.

These benefits include:

Cost saving

EDI automates information flow, without any human interaction reducing the cost associated with:

  • Manual document management (overhead costs)
  • Printing and paper
  • Data entry error
  • Inventories and inventory carrying costs
  • Risk of penalties or chargebacks for errors or for not following guidelines correctly.

Accuracy 

Data sent by EDI, is not manually “touched”

Efficiency 

EDI data often take seconds to be sent

Security 

Access levels to information sent by EDI are controlled at the EDI applications

Visibility 

EDI can share information between all your trading partners in the supply chain

 

EDI Legacy Implementations 

Despite being a proven stable technology with simple architectures and obvious benefits with cost savings, only large enterprises used EDI to automate and manage their business-to-business (B2B) transactions. These legacy systems used EDI gateways to bridge the gap between to back-end systems.

EDI Landscape - Cetrix Cloud Services

Figure 3: EDI landscape

EDI legacy systems also come with a number of challenges:

  • Complex legacy integrations between more than one system (ERP, CRM, HR)
  • Departments may use more than one system for the same function through acquisitions, consolidated services, projects, etc
  • High reliance on the availability, scalability, and performance of the EDI gateway
  • Different partners may support different EDI standards
  • Different EDI standards may be incompatible with other EDI formats
  • Compatibility with various communication protocols
  • EDI transactions must be easily traceable and reportable.
  • Legacy EDI implementations require customizations, making them difficult to manage

There are also high maintenance and service costs if you host your own EDI solution.

You also need your legacy EDI landscape to remain as generic as possible, covering all industry standard technologies and formats, so that you can scale it to include new trading partners as necessary. Thus, legacy systems are expensive to maintain even if you outsource them.

  

EDI ESB Implementations 

Lately, organizations are switching from point-to-point legacy systems to enterprise integration platforms that use enterprise service bus (ESB) technologies.

These platforms exchange information through built-in industry standards providing:

  • Scalability, high availability and easy of sizing
  • Use of industry standards as interface technologies (no custom development-universal connectivity)
  • Code abstraction, lowering development cost (no level code development)
  • Transactional processing, since the information should be consistent within multiple applications
  • Monitoring and managing components, making all transaction executions accessible and clear.

Implementing EDI through ESB also allows you to add new EDI functionalities to your network through additional software modules.

Thus, you get:

  • A single unified platform for application integration and EDI/B2B
  • Scalable, high availability EDI infrastructure
  • Ease adoption of new partners as the ESB acts actually as an EDI template

Code abstraction with high level of reusable, standard components.

EDI ESB integration - Cetrix Cloud Services

Figure 4 : EDI ESB integration

While EDI legacy systems are better than the old paper-based communication system, they are difficult to implement, and require a lot of resources to maintaining. By using an ESB system, your organization will have better and more manageable EDI projects that will not only save you money but also automate better the B2B process and improve the quality of your B2B transactions.

 

References:

  1. Electronic data interchange
  2. Benefits of EDI
  3. EDI 101Guide
  4. EDI Cloud Integration: Making a Good Thing Even Better

 

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Topics: Application Integration

Paul Nilsen

Paul Nilsen

Paul Nilsen is the director of solution development at Cetrix Cloud Services. He also works with the Solution Development Department at Cetrix Technologies, where he headed the department for three years. Paul has over 20 years of experience in IT, working on software engineering projects, hardware-software product integration, design of special purpose systems using artificial intelligence, and implementing CRM and ERP software systems.

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