99c4080f412ccf46b9b564db7f482907?s=200 avatar

99c4080f412ccf46b9b564db7f482907?s=200

I'm currently a Senior Developer Advocate at MongoDB. I'm also a Google Developer Expert for Web Technologies and spend most my time giving talks at conferences and meetups, mentoring developers and running workshops, and creating online content to help technology professionals.

Former Auth0 Employee

Ado Kukic

Learn why identity is the right component to modernize first in your digital transformation journey.



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  <i class="icon-budicon-500"></i>
  <strong>Forrester Consulting analysis determines that using Auth0 can yield a 548% ROI and $3.7M in identity-related savings. Read the full report: <a href="https://resources.auth0.com/forrester-tei-research-case-study/">Total Economic Impact of Auth0</a>.</strong>
</div>

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Digital identity is at the core of any application - invisible yet crucial. We often take identity for granted as most of its magic happens behind the scenes. But identity plays a much larger role beyond the login screen for your applications. At a high level, we can break up identity into four distinct components: authentication, authorization, user profile, and security.

![Authentication](https://images.ctfassets.net/23aumh6u8s0i/67qEWKZ4IrYyWu7msBhHo5/d210fc4edddcd5f832727a3c9b3a9b7c/authentication)

## Authentication

Authentication dictates the way a user logs into your application. While in the past, a simple username and password form did the trick, today it is much more complicated. In addition to providing the traditional means of authentication, social connections through providers like Facebook and Twitter, enterprise federation and single sign on (SSO), and even passwordless authentication are becoming the norm. Implementing all of these various types of authentication methods in your application is a tiresome, repetitive, and expensive task.

![Authorization](https://images.ctfassets.net/23aumh6u8s0i/3xJ0fCozdfmFc3brsLnDE0/ccafe0e415bb88c0a1da51ca7b51e933/authorization)

## Authorization

Authorization is tasked with ensuring the right users have the right access at the right time. Admins of your application should easily be able to make system wide changes, while regular users can only make changes to their accounts for example. From small businesses to large enterprises, access has to be fine tuned to ensure that the right users have access. Multiple departments, complex hierarchies and groups, and users moving throughout the system need up to date access to work effectively. Access is very important to making sure your application operates as intended and getting this aspect of identity right can be quite challenging.

![Security](https://images.ctfassets.net/23aumh6u8s0i/1dMwIvLWqoN21PQ790xNGA/9e44b70c1f7b52f8b167b57c528c1a41/user-profile)

## User Profile
The user profile is concerned with the data that your application has collected on each individual user. The better you know your users the better experience and personalization you can provide. With disparate networks and various sets of data floating all around the web, it can be difficult to get a clear understanding of your users, but companies that can will have an upper hand.

![Security](https://images.ctfassets.net/23aumh6u8s0i/3NyEKlPGMbZxGN1IxxIZHR/73722014fa0c8f2b84a9c1058ebd3a64/security)

## Security

Finally, the security part of the modern identity story ensures that user data is protected both in motion and at rest. Security can be looked at through various lenses. The first, starts when a user attempts to login. Protecting user accounts at time of login with multifactor authentication, anomaly detection, and breached password detection are just some of the quick wins that will make your application more secure and stand out from the crowd. Ensuring data is protected at rest, passwords properly encrypted, and adherence to industry standards and certifications are other aspects of security that must be enforced.

## Application Modernization and Identity

Looking at identity as a constantly evolving and unified view of your user base, rather than a one-and-done requirement, will help you understand the importance of this component in your application. Application modernization is the refactoring, repurposing or consolidation of legacy software to align it more closely with current business needs. Whether you call it application modernization, digital transformation, platform refactoring or re-architecting, the need to have a software that meets the needs of your business is a priority. 

[Read our initial application modernization post](https://auth0.com/blog/getting-a-competitive-edge-with-a-microservices-based-architecture/) to learn more about why application modernization is sweeping the software industry. In today’s post, we will look at how you can kickstart your modernization journey by tackling identity first.

Identity has to be done right, not as an afterthought or side project, making it an ideal candidate for a service that needs to be separated out from the legacy behemoth applications. Identity requires ongoing efforts to secure and maintain but expertise is scarce. Much like how you generally wouldn’t build your own database or email platform, identity is best left to experts whose sole job is to ensure that your platform is as safe and secure as it can be, leaving your developers to focus on your organization's core competencies.

![Modern Identity](https://images.ctfassets.net/23aumh6u8s0i/4EeT5pZAOfFGHHwXx5hsUW/247e8b25051cb9454622ce02e68440af/auth0-identity)

## Modern Identity with Auth0

Auth0 is an Identity as a Service provider that takes a completely new approach to providing a modularized, pluggable identity service by simplifying the most complex identity challenges with a powerful, secure, extensible, and easy to integrate platform. Rather than re-inventing the wheel when it comes to identity, leveraging Auth0, can help you reach your goals faster.

Wherever you are in your digital transformation journey, Auth0 can help. Whether you are re-building your legacy application from scratch altogether or going about a phased restructuring of the legacy system, it’s ideal to offload a the critical part of the application, which not your core competency or expertise, externally as a cloud-based service. With Auth0, you can do just this, and the benefits will be immediate including:

* **Code as an asset** - Stop every line of code from becoming a cost center - for maintenance, audit, upgrade and so on. The more you externalize using services, the lesser you actually pay. Auth0 _provides identity as a service, ensuring your identity remains an asset - always_.
* **Ease of deployment and integration** - Auth0 Identity works with any technology stack, language, and framework. Get your identity system up and running quickly within your existing ecosystem, and get back to modernizing the rest of the app.
* **Easy configuration to meet your needs** - Once Auth0 is integrated into your app, adding additional configuration, like multifactor authentication, anomaly detection, or breached password detection, is as easy as flipping a switch.
* **Support for virtually any identity source** - Username and password, social connection, enterprise federation, and single sign on (SSO). Auth0 allows quick and easy integration with any identity source you choose.
* **Flexible deployment** - Your apps are evolving but you still have legacy systems to work with. Auth0 gives you flexible deployment options - our public cloud, a private cloud controlled by Auth0, or, for AWS users, a private deployment in your own cloud.

Implementing a modern identity solution will present many benefits to your business. Providing your users multiple ways to access your application on their terms will lead to increased conversion rates. Having a better understanding of your users will allow you to provide a more personalized and enhanced user experience, increased user efficiency, and better management. Going above and beyond to protect your user data will build trust and loyalty as well.

Your users are not the only ones that will benefit. You will be able to react to market events faster, gain a deeper understanding of your users, and your developers will be able to focus on building software that makes your product stand out. Over 80% of Auth0 customers were able to go to production within two weeks and with over 42 million login transactions processed daily, Auth0 is ready to serve your users today regardless of where you are in your application modernization journey.

## Summary

The question is no longer “should we or shouldn’t we”, but rather “how do we modernize our platform” for current and future needs. The software industry is going through a radical transformation and legacy monolithic applications are no longer compatible with today’s business needs and user expectations. Application modernization is not something that can be achieved overnight and there are many paths to the end goal, but starting with identity is a surefire win-win for both your organization and your users.


The Role of Identity in Application Modernization

The need for application modernization is sweeping the software industry. It’s a challenge to know where to start, but we’ve got the quick wins that will get you on your way to modernization in no time.



<div class="alert alert-info alert-icon">
  <i class="icon-budicon-500"></i>
  <strong>Forrester Consulting analysis determines that using Auth0 can yield a 548% ROI and $3.7M in identity-related savings. Read the full report: <a href="https://resources.auth0.com/forrester-tei-research-case-study/">Total Economic Impact of Auth0</a>.</strong>
</div>

---

Traditionally, companies have built “monolithic” applications that addressed many business needs and intertwined business logic, user interfaces, and other components all in one. As the business grew, so did this application, adding more and more features, becoming harder and harder to maintain, deploy, test, and secure. These types of applications are commonplace today, however present numerous challenges to organizations looking to respond quickly, reliably, and efficiently to today’s changing business needs.

Monolithic applications slow organizations down. Long development cycles, high infrastructure and licensing costs, often single points of failure, and difficulty scaling are just some of the risks and challenges posed by these applications. Not to mention the difficulty of testing and fixing bugs, addressing vulnerabilities in such complex systems, and challenges integrating new technologies into the mix. In short, legacy architectures and monolithic applications are not compatible with today’s business demands.

Application modernization is the refactoring, repurposing or consolidation of legacy software to align it more closely with current business needs. Whether you call it application modernization, digital transformation, platform refactoring, or re-architecting the need to have software that meets the needs of your business is a priority. Nine out of ten decision makers claim that legacy software is keeping them from achieving their goals.

## Transitioning from Legacy Monoliths to Microservices

To remain competitive, organizations of all sizes are realizing that they need to be nimble, evolve fast, and maintain a healthy balance between customer expectations, business needs, and IT agility. Utilizing a microservices based architecture is a growing trend that helps achieve these goals. In this approach, applications are split into small sets of interconnected services based on business capability where each service has a well-defined boundary.

![Microservices](https://images.ctfassets.net/23aumh6u8s0i/18ttZOWoNAUgdI2sbKFdUP/4a46c78d26216ca770eae04087454988/microservices-example)

A good way to think about microservices is to think of them as individual lego pieces that come together to form something useful - like your ideal software. Each microservice can evolve independently based on the changing needs of the business. An easy way for organizations is to utilize SaaS vendors to fill in the feature and functionality gaps that are not core to the business, allowing the development teams to focus on building business value rather than re-inventing the wheel or so to speak.

The benefits of a microservices based architecture are clear. New features and functionality is much faster to develop, test, and deploy. Services can be deployed independent of each other and no single point of failure exists. Developer productivity and IT agility are increased, and the demands of business can be met head on. The challenge however is, knowing where to start.

## App Modernization Done Smart: Go For Quick Wins

Whether you are re-building your legacy application from scratch altogether or going about a phased restructuring of the legacy system, it’s ideal to offload critical parts of your application, which isn’t your core competency or expertise, externally to a cloud-based service. Using out-of-the box solutions will allow you to quickly implement key functionality. Some of the components that range from complex to almost impossible to build in-house but have various Software as a Service solutions are Payment Processing, Messaging, and Identity.

### Payment Processing
Payment systems have seen major disruptions in recent years and users are adapting fast. Whether it’s offering more payment methods such as cryptocurrency or direct debit payments, or ways to pay through contactless payments like Apple Pay or one-click buy, users are becoming accustomed to a seamless checkout experience. Payment processors like Stripe and Zuora are well known for providing payment platforms and APIs for enabling and managing all aspects of accepting payments via the Internet.

### Messaging

Given the number of communications channels available today, getting a consistent message to your users is harder than ever. Messaging is becoming more and more bi-directional and customers are increasingly engaging with organizations through social media, messaging bots, voice activated AI and more. Twilio is an example of a platform that provides messaging and communications services to handle SMS, voice, and other forms of communications to deliver consistent messaging across all channels.

![Identity](https://images.ctfassets.net/23aumh6u8s0i/4FP9tc3RggO7IwmtRgJlMn/9f722f14acd7c5eb5f2cc9783c58fe40/identity)

### Identity

Digital identity is at the core of any application - invisible yet crucial. An application of any nature requires digital identities, to [represent users and other entities interacting with it](https://auth0.com/user-management). With mobility, BYOD, IoT and smart entities becoming essential parts of the digital ecosystem, the “identity” piece of an application now has even more responsibilities and expectations than before.

Identity is complex. There’s username and password authentication, social connections, single sign on, and these are just ways to login. [Multifactor authentication](https://auth0.com/multifactor-authentication), [breached password detection](https://auth0.com/breached-passwords), anomaly detection, securing sensitive data like passwords, and many other topics comprise identity and having your engineers try to build, manage, and secure all these is like expecting an elephant to win a sprint race. You need to use their expertise at the right place.

Auth0 takes a completely new approach to providing a modularized, pluggable identity service by simplifying the most complex identity challenges with a powerful, secure, extensible, and easy to integrate platform. We will cover how Auth0 can solve your identity challenges in an upcoming article on modernizing your applications.

### Conclusion

Legacy monolithic applications are outdated and incompatible with today’s business needs and demands. Whether you are in the planning or re-architecting stage of your digital transformation, utilizing a microservices based approach alongside SaaS vendors is a sure-fire way to get quick wins and stay one step ahead of the competition.

Today’s blog post focused on introducing you to the quick and easy ways to get started on the  transformation from your legacy systems. In an upcoming post, we will dive deeper into how Auth0, as a Identity as a Service provider, can be a trusted partner in your modernization journey by solving your identity challenges and continuing to evolve as you do.


"microservices-based-architecture"