Consider various functions of financial banking such as account management, life insurance, lending or loan management, wealth management, and so on. Each service might need to share the abilities of other services, rather having them as duplicated rather then reused.

Consider a home loan management service that needs to know the savings account details of the borrower, other retail lending information for credit reports, and mortgage information from property management. So, those capabilities are common concerns for any lending service that can be defined and used by not only the home loan systems but by any other major system such as credit cards, life insurance products, account management services, investment management services, and so on.

Implementing business logic for a set of well-defined capabilities that address major common concerns and are certainly not specific to one problem but common to multiple business problems, are called agnostic services.

The separation of agnostic business logic or capabilities into discrete services helps enterprises with service reuse and composability.

As the preceding example depicts, having the services explicitly state that they are agnostic helps the imminent consumers and designers to reuse the existing agnostic services.

The benefits of agnostic services are as follows:

• Exercising service reusability and composability
• Consumers benefit from iterative refinements of service capabilities beyond initial service definitions
• Enables multi-purpose capabilities, and those would be the most preferred conventional capabilities

The impacts of agnostic services are as follows:

• Improvement of a service's abilities through its advantages of preliminary analysis takes a lot of time and considerations, and more iterations are needed for development
• Arriving at a universal consensus on service functions might be challenging as business functions of services might be too vague or too generic
• Need more design planning and considerations, as agnostic services design push us to consider many design parts those are not necessarily need to be deliberated for short-term or mid-term delivery, and so may lead us to end up in missing delivery commitments