Goliath’s Logon Simulator for Hospitals using Citrix and Cerner can test and confirm that any Citrix delivered application, including Cerner, will launch when a clinician attempts to logon. One of Goliath Technologies customers, Universal Health Services uses Goliath Technologies to prevent EHR logon issues and slowness related issues with Citrix and Cerner.
The simulator acts as a real user and tests the entire logon sequence through Citrix from the hospital end point and will alert administrators if there is a failure or slowness so they can deploy remediation actions before clinicians fail to logon. Anticipating a clinician’s logon difficulty from the hospital location before end users complain is better than real time. The Goliath Logon Simulator is deployed at each hospital location that utilizes Cerner. The agentless technology is then configured in minutes to facilitate continuous, real-time testing of the application delivery infrastructure, including the NetScaler.
The Business Challenge
UHS is one of the 10 largest for profit health systems in the United States today. They rely heavily on Cerner to deliver EHR application services to healthcare professionals across the United States.
UHS was faced with several challenges related to application logon failures and slowness, which impacted clinician and health care worker end user experience. More importantly, there was no solution in place for troubleshooting and/or providing advance warning when these issue arose.
There were two key challenges specific to UHS:
- There simply wasn’t a technology available that could provide systems administrators at the hospital locations advance warning of clinician issues with the logon process, such as failures or slowness related to their Cerner hosted application.
- The distributed nature of the UHS user base and hospital locations presented challenges with identifying the root cause of logon initiation, logon duration and session related issues. UHS required a solution that would enable them to quickly identify if an end user problem was occurring based on geography, site, application, and/or the individual.
The Solution: Test the Entire Citrix & Cerner Delivery Infrastructure
The combination of the above factors made it very difficult for UHS to get ahead of their application delivery challenges such that end user experience could be improved. Goliath provided them with a technology that enabled them to overcome the visibility limitations they were faced with, and to resolve their logon performance and availability issues.
The Goliath team developed a technology called Goliath Logon Simulator. The technology is deployed at the remote hospital location and logs on to the Cerner application using Citrix.
It tests the entire Citrix and Cerner delivery infrastructure to ensure that both Citrix and Cerner will launch when clinicians and healthcare workers attempt to access their applications. The Logon Simulator may be deployed with or without the intelligent agent deployed on the Cerner XenApp servers.
At UHS, Goliath Logon Simulator was deployed at over 30 acute care facilities across the United States. At each facility, the logon simulator client is installed and configured on two physical workstations at each location. Logon Simulators are configured to connect to the Cerner hosted data center every 30 minutes, following the same network path as an everyday user.
15,000+ Cerner Application Logon Tests Per Day
Upon logging into the Cerner application delivery environment, Logon Simulator launches five Cerner applications (PowerChart, Firstnet, SurgiNet, SAAnesthesia, and Pharmacy Med Manager). Launching these applications not only validates the availability of the programs, but it also exercises the entire logon initiation process.
This ensures that all components are available and operating efficiently end-to-end. On a daily basis UHS IT performs over 15,000 Cerner application logon tests per day. These tests enable UHS to pinpoint and isolate availability issues before users are impacted, regardless of location.
The true power of the Logon Simulator technology is that it is not simply a series of automated scripts. It is software that initiates a connection to Cerner using the same logon sequence and process that a real end user follows to initiate a Citrix session.
From a physical Windows Client or virtual machine, a Windows/Active Directory user account is configured to open a web browser, access the Cerner site, authenticate to the XenApp environment, launch the applications, and then log out of the session(s). This entire workflow is conducted in the same manner that a user follows, down to the mouse clicks.
Accurately Representing the End User Experience in the Environment
The result is the most accurate representation of what an actual end user will experience when they access the environment. All of the metrics generated during the simulated session are reported back to the central end user experience support team at UHS in real-time. These metrics allow the UHS team to take immediate action as needed, when trouble arises. The following image depicts the deployment architecture at UHS.
The Logon Simulator for Hospitals Using Citrix and Cerner also is a powerful tool for identifying if an issue is wide spread or location specific. In one instance, users at one of the UHS hospital locations were having difficulty launching and using the Cerner application.
Analyzing Real-time Data
Based on feedback received from the individuals experiencing the problem, all signs pointed to the Cerner application being unavailable. However, after analyzing the real-time data produced by Logon Simulators at other sites, administrators quickly realized that sessions and applications were launching successfully and functioning reliably across the country.
The Logon Simulator data provided the needed evidence required to identify the problem as site specific, and not related to the Cerner application or hosted facility. As a result, the support team was able to focus immediately on the location where the issue was being experienced, and identified unreliable hospital WiFi as the root cause.
As depicted in the screen shots below, each simulation is scheduled to run on a regular, reoccurring basis. If issues occur, notifications are sent in real time allowing support teams to address the conditions immediately.
Directly from the primary dashboard, administrators and support staff have the ability to drill down into simulation events, as depicted below. This enables them to obtain detailed information as to why a test may have failed or under performed, right at their fingertips. This actionable intelligence is then either used to troubleshoot and resolve the issue, or is provided to third parties such as Cerner to collaborate on resolving the issue.
Goliath Logon Simulator gave UHS the tool they needed to identify and address logon and application availability issues in advance of end users being impacted. It also provided them with the capability to quickly diagnose and target root cause location based on user, site, or geography.
According to Mike Nelson, CIO at Universal Health Services they “selected Goliath Technologies because their end user experience monitoring & management supports Cerner and identifies systems degrading before end user physicians are impacted. We do over 15,000 Cerner application test launches per day. This early warning system coupled with enhanced performance data and analysis puts us in a better position to collaborate with Cerner to resolve issues.” “The customer uses VMware vSphere as hypervisor, and are running Citrix XenApp/XenDesktop for application and desktop delivery.” “The customer uses Performance Monitoring Products: Goliath Performance Monitor & Goliath Logon Simulator that support hospitals with Cerner”
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