What is Business Rules Engine? Benefits and Examples

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Written By Haisam Abdel Malak
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Business rules engines are used to automate processes and improve productivity for organizations. They provide the ability to automate complex business processes with minimal human intervention or interaction. Companies can use a business rules engine to reduce costs, increase efficiency, minimize errors and speed up time-to-market.

A business rule engine (BRE) is a software that enables the management and execution of business rules. It provides a centralized platform to define, manage, and automate these rules, making it easier to enforce consistent decision-making across an organization.

A business rules engine can help organizations to be more efficient and effective by automating the enforcement of business rules. This can free up employees to focus on more strategic tasks, and it can help to ensure that decisions are made consistent with the organization’s goals and objectives.

A business rules engine typically consists of three components: a domain model that defines the data entities in the domain; an inference engine that is responsible for evaluating possible outcomes or consequences given certain inputs; and an action mechanism that implements the actions to be taken based on the evaluation made by the inference engine.

What are some examples of a business rule engine?

These examples demonstrate the wide-ranging utility of a BRE in industries, enabling organizations to enhance efficiency, consistency, and compliance while making informed decisions.

Here are some popular examples of business rule engines:

1- In healthcare, a BRE can be utilized to automate clinical guidelines, such as determining appropriate treatment plans based on patient symptoms and medical history.

2- Financial institutions can leverage a BRE to automate risk assessment for loan approvals, ensuring compliance with lending policies and regulations.

3- Financial institutions can leverage a BRE to automate risk assessment for loan approvals, ensuring compliance with lending policies and regulations.

4- Retail businesses can employ a BRE to manage pricing rules, such as applying discounts based on customer loyalty or purchase history.

Business Rules Engine Benefits

There are many benefits to using a Business Rules Engine. One of the main benefits is it can make your processes more efficient and accurate. It also helps with compliance and auditing, which can help you stay in compliance with regulations.

It has been said that the best way to predict the future is by inventing it, so it’s important for companies to start thinking about how they will handle their future business processes now.

The seven benefits of a business rules engine are:

1. Increased Efficiency

One of the most important benefits of a decisions engine is the ability to increase operations efficiency by automating decision-making processes.

It can make decisions based on data and can execute actions automatically. This can free up employees from having to make manual decisions and can help to ensure that decisions are made consistently.

2. Improved Accuracy

Another great benefit is that it can improve the accuracy of decision-making by ensuring that decisions are made consistently and in accordance with pre-defined rules.

3. Increased Flexibility

A decisions engine can provide organizations with the flexibility to easily modify or update their business rules as required, without the need to make changes to underlying code or IT infrastructure.

4. Reduced Costs

By automating decision-making processes, most rules engines can help organizations to reduce the costs associated with manual decision-making.

5. Improved Customer Satisfaction


It can be used to automate customer service processes and improve customer satisfaction by providing faster and more accurate responses to customer inquiries. Additionally, it can be used to automatically generate customized responses to customer inquiries based on customer data, which can further improve customer satisfaction.

6. Enhanced Business agility

Enabling quick and easy changes to business rules can help to enhance business agility and responsiveness.

BREs can be used to enhance business agility by providing a central repository for business rules that can be easily accessed and updated by business users. This can help to reduce the need for IT involvement in business process changes, and can also help to ensure that changes are made in a consistent and controlled manner.

7. Improved Decision Quality

It can improve decision quality by automating the decision-making process and ensuring that consistent and accurate decisions are made.

By using a BRE, businesses can create a set of rules that define how a particular decision should be made. This set of rules can then be applied to different scenarios to ensure that the same decision is made each time. This can help to improve the accuracy of decisions and reduce the amount of time that is spent on making decisions.

Types of Business Rules Engine

The main types of business rules engines are:

1. Script-based rule engine

The script-based rule engine is the most basic type of business engine. It is also the easiest to set up and get started with. However, it also has limitations such as being unable to support complex workflows, logic, and calculations.

2. Declarative rule engine

The declarative rule engine is a more advanced type of business engine that can be used in an enterprise environment. It allows for more complex workflows, decision logic based bre, and calculations to take place in the background without any user input or involvement needed.

3. Hybrid rule engine

The hybrid rule engine combines the best aspects of both script-based and declarative engines; it has a graphical interface for easy configuration but it still supports programmatic development or coding based bre.

How Does Rules Engine Work?

Business rules engines are computer programs that help automate decisions in a business. They are used to making decisions about what to do next, based on the information they have.

It is a decision-making program that automates what should happen next in a process or workflow. It’s usually combined with an application or system to provide the data it needs and make sure it can perform its tasks.

The decision-making program comes with input and output data, as well as a set of rules that govern how it makes decisions. For example, when you’re creating an order for your customer, you may use a rule engine to decide which products go into the order based on what type of customer they are and what products they buy most often.

Define rules, facts, priority (score), mutual exclusion, preconditions, and other functions are commonly supported by rule engines.

How Do They Deliver Business Value?

Business rules engines can deliver business value by automating decision-making, improving process efficiency, and providing better visibility into business operations.

By automating decision-making, BRE can help organizations make faster, more informed decisions.

By improving process efficiency, BRE can help organizations reduce costs and improve quality.

And by providing better visibility into business operations, they can help organizations identify and correct errors and improve compliance.

Drawbacks of using a Business Rules Engine


There are a few potential drawbacks including:

1. Complexity

They can be complex to implement and maintain. This is because they often require a deep understanding of the business domain and the specific rules that need to be implemented.

2. Cost

Business rules engines can also be expensive to purchase and deploy. This is because they are often commercial off-the-shelf (COTS) products that come with a hefty price tag.

3. Performance

Another potential drawback is that it can impact performance. This is because the engine will need to be invoked every time a rule is triggered, which can add overhead to the system.

4. Flexibility

Finally, they can be inflexible. This is because they often require specific formats or representations for the data that they operate on. This can make it difficult to integrate with other systems or to change the rules that are being implemented.

4. Rule-based engine

The rule-based engine is usually either a declarative or script-based engine, but the underlying rules are typically implemented as if they were in a procedural language such as C++.

Business users define company policies in a central location that will reduce manual data entry and automate the execution of different use cases including office administration.

How to choose an ideal business rule engine?

The best BRE for your organization will depend on your specific needs and requirements. However, there are some general guidelines you can follow to help you choose the right engine for your business:

  • Make sure it is easy to use and understand.
  • Make sure the engine is scalable and can handle your organization’s growth.
  • Make sure it is flexible and can be customized to your organization’s specific needs.
  • Make sure the engine is reliable and has a good reputation.

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