Common Questions about Application Dependencies

What are application dependencies?

Application dependencies occur when technology components, applications, networks, storage, and servers rely on one another to deliver functionality and when changes made to one element are likely to impact the other.

How does ADM work?

There are two standard types of application mapping solutions:

Agent-based application mapping tools: These solutions require you to install a third-party solution on your computers and servers to create a map of all applications, and therefore include the risks inherent in giving access to third parties. They can also impact your computer’s performance, slowing it down or causing the battery to burn out faster.

Active/scheduled scans: Another option is to schedule scans at specific time intervals in which the system sends pings to network devices and creates a map from the responses. The scans impact latency and performance, so they cannot be conducted on an ongoing basis. Therefore, they only give you a window into your IT ecosystem, and you discover only the things that happen during the time of the scan.

Read more here.

Why application dependency mapping is so important

IT teams need to understand how the different components of their physical and virtual infrastructure interact to allocate resources efficiently and mitigate risk.

Application dependency mapping (ADM) or application discovery tools and dependency mapping  (ADDM) identifies all the elements in an IT ecosystem and how they work together in real-time so you can simulate changes and migrations and understand their impact.  When something goes wrong, ADM helps IT teams identify the failure point quickly and determine the best course of action.

For example, if one of your applications isn’t performing well, application dependency mapping can help you find the application performance bottleneck and figure out what resources might be overtaxed or compromised.

ADM can help you:

  • Prevent unplanned outages

Predict and mitigate problems ahead of time through simulations and an accurate understanding of how different components interact.

Generate a granular application topology map using network traffic to discover anything with an IP address and verify that nothing is overlooked during a migration.

Simulate and plan for change using a change impact analysis.

Create a tight microsegmentation policy by mapping your comprehensive network topology and dependencies, including defining VPCs, Subnets, and Security Groups on AWS. This protects your most important assets in case of a breach using the principle of least privilege.

  • Compliance

The visibility gained through ADM helps isolate sensitive customer information so you remain compliant with the strict requirements of regulatory boards such as SWIFT or GDPR.

Learn more about how ADM can help you: Top 4 Use Cases for Application Dependency Mapping & Application Change Management.

What you need to know about Application Dependency Mapping Tools

Benefits of using ADM software

Application dependency mapping gives you an accurate, end-to-end map of your entire IT ecosystem that lets you:

  • Manage changes and understand how they will impact other elements and functionalities in the ecosystem.
  • Easily migrate assets from your data center to the cloud. Read more here.
  • Isolate critical assets or customer data with microsegmentation, seamlessly reducing risk.

How to choose the best-fit ADM solution for your organization

When choosing an ADM solution, it’s important to consider the following factors:

  • The size of the environment: It may be possible to install agents in an organization with 30 servers but in an enterprise with 10,000+ servers, it isn’t feasible.
  • Security risk: Organizations that handle highly classified data may have limitations on the installment of third-party tools.
  • Familiarity: If your organization is familiar with a specific solution you may prefer to continue using it if it meets your needs.
  • Pricing
  • Server supplier: It’s important to choose a solution that integrates with your server supplier (IBM, Oracle, etc.).

VNT’s Application Dependency Mapping Software


VNT’s agentless dependency mapping (ADM) tools create a real-time, detailed service map of your entire IT environment, with one view for both virtual and physical servers. It’s platform-agnostic and has zero impact on performance.

VNT’s features include:

  • Multi-cloud compliance and multi-tenant options
  • Support for all on-prem technologies and virtualization platforms
  • Hybrid application dependency mappingADM for on-premises IT and cloud topologies that shows both environments in a consolidated map
  • Dependency mapping between business applications
  • Real-time mappingmaps are always up-to-date
  • Agentless and credential-free deployment
  • Passive use of network traffic protocols in maps
  • Microsegmentation planning
  • Change managementvisibility of real environment architecture before and after an IT change
  • Impact analysisshows the network impact of shutting down servers
  • Cloud migration wave planning
  • Cloud migration “right-sizing”
  • SSL certificates
  • Inactive server identification
  • Export options and APIs

Links to the features pages (if no features pages, perhaps we can create them)


VNT integrates with virtualization platforms such as vSphere, load balancers, cloud platforms, and monitoring solutions. Our integrations cover AWS, Azure, Google Cloud, Oracle Cloud, Kubernetes, AWS CloudFormation, Docker, VMWare, Hyper-V, ServiceNow, AppDynamics, BMC CMDB, CA CMDB, IBM CCMDB, New Relic, Citrix, MicroFocus, and Slack.

Calculating your cloud optimization costs

Cloud infrastructure can be more cost-effective than physical infrastructure, but it’s easy for companies to overspend. Fortunately, there are tools available to help you optimize your cloud spending, such as native cloud provider tools and network optimization tools and techniques.

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Use Cases

Change management

VNT makes it easier to prevent configuration drift and unplanned outages with built-in change management impact analysis. The platform maintains an audit trail of any changes, highlighting the difference between your baseline topology map and what’s happening in real-time. It will even helps you understand the impact of any new deployments in advance.

It also helps mitigate risk—some of the biggest recent cyber-attacks have been exacerbated by business application issues that could have been solved with better visibility. From expired digital certificates to incorrect firewall configuration and dangerous application connections across subnets, VNT brings problems to light for remediation.

Even change is changing. Read more in our blog  “Organizational Change Management: Essential Change Management Principles You Need to Know in 2021”.

Cloud migration

VNT simplifies the process of migrating assets from your data center to the public, private or hybrid cloud. We start with complete mapping, then discover all dependencies, working without agents or credentials. With ultimate visibility, you can efficiently assess and model specific workloads, right-sizing your instances for a successful cloud migration project.

Are you ready to migrate to the cloud? Find out using our cloud migration checklist or learn more on our blog the Psychology of Cloud Migration.


VNT offers insightful discovery and mapping that help you isolate critical assets or customer data and seamlessly reduce risk. VNT automatically discovers and maps your complex business environment, providing a visible and intuitive starting point for microsegmentation strategy.

Read more in our blog “A Beginners Guide to Microsegmentation and Network Microsegmentation”.

Do you have your bases covered? Check out our checklist for microsegmentation.

Customer Testimonials

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“With VNT’s cost analysis recommendations, we were able to save as much as 25% of our monthly network costs. This is a great success for us, knowing we can rely on VNT for accurate dependency mapping.”

Haran B. , VP Product, Cancelon
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“VNT supported us in finding the expensive connections that were having a negative impact on our bottom line each month. We simply didn’t have the visibility into our cloud.”

Dvey Aharon – VP, Research and Development, Windward

“We loved how easily we could create and visualize our application apps, including all dependencies – it made the whole migration process a lot easier.”

Nadav Avineri, IT, Webpals Group