Open PHA Desktop and Open PHA Cloud are powerful tools for performing, analyzing, and maintaining HAZOP, LOPA, and Security PHA Review studies.

Open PHA Desktop is free and a standalone desktop application available on Windows, Mac, and Linux based operating systems. The Open PHA Desktop edition can be downloaded at the bottom of this page.

Open PHA Cloud is a module in the Kenexis Integrated Safety Suite (KISS) and runs in your browser. KISS provides technical safety professionals with a secure cloud-based multi-user platform for the design of engineered safeguards. You can request a trial to the inexpensive Open PHA Cloud at the bottom of this page.

Both products are designed to work together and are complete HAZOP and LOPA software package supporting customized Risk Matrix, Likelihood Categories, Consequence Categories, and Risk Rankings, Nodes, Deviations, HAZOP & LOPA Worksheets, Recommendations, Safeguards, a Parking Lot, and Reporting.

The desktop and cloud versions are interoperable, allowing files to seamlessly be transferred between the cloud-based and desktop-based versions.  Typically, most of the work is done on the desktop version and the cloud-based version is typically utilized for advanced features such as a dashboard and advanced reporting.  You can download the desktop version for free or request a free 30-day trial of the cloud-based version at the links below.

The Open PHA Desktop version is a standalone desktop application, which stores files locally on your computer without the need for an internet connection to facilitate work in remote areas.

The licensed Open PHA Cloud version of the software runs in a browser and is designed to work with the Desktop versions to provide additional benefits when the user returns to a location where they can access the internet.

Open PHA Desktop & Cloud features include:
Configurable HAZOP and LOPA Worksheets
Configurable Risk Criteria
Recommendation Tracking
Deep Copy & Paste
Search & Replace
Implicit & Explicit LOPA Support
Cross-Platform Support (Windows/Mac/Linux)

Open PHA Cloud added features:
Requires Internet Connection
Study / Facility Dashboard
Revision Manager
Integration with Vertigo SIS Lifecycle Management
One Click Report Generating from Custom *.DOCX Template
Study Content Translation
Bowtie Generation
PHAWorks Import
Share and Collaborate with Project Teams

Together, these two products make it easy to perform a PHA when remote in the local language and then upload to KISS and share data with corporate in any other language.

Download, Trial Request, & Pricing

Click here…

Security PHA Review

You can easily record a Security PHA Review in Open PHA Desktop no charge version.

To learn more about Security PHA Review, consider purchasing the book from the International Society of Automation at https://www.isa.org/products/security-pha-review-for-consequence-based-cybe-1

What’s New in Open PHA v2 – April 2021

Version 2.0.0 of Open PHA has  arrived, and it comes packed with a long list of requested features.

  • Combining Safeguards and IPLs into a Single List
  • Addition of Risk Ranking After Recommendations
  • Addition of Dedicated PHA Checklists
  • Linking to PHA Worksheets from Recommendations & Safeguards
  • Auto-Navigation Between PHA and LOPA Worksheets
  • Improved Spell Check Performance and Accuracy

Lear more…

Automatic Updates

If you already have Open PHA Desktop downloaded on your computer, the next time you open it you will get a message like the one below. Reopen Open PHA Desktop to upgrade.

Open-source Standardized Data Structure

No more porting and manipulating data and worrying about the consistency of information across multiple files, studies, or data structures.

Our data structure is fully integrated using an open-source standardized data structure that is revolutionizing PHA documentation. The standardized data structure allows the development of tools that can display a single set of data as a HAZOP worksheet, LOPA worksheet, or bow-tie diagram.  The open-source standardized data structure was used since inception with a deliberate effort to eliminate the problems presented with other software.  As a result, data from multiple scenarios can rolled up into easier to use hazard registers and visualized with graphical approaches like bow-tie diagrams, rolled up into Power BI and other tools, eliminating the frustration of managing replicated data in multiple locations and different languages.

Recommendations Tracking Dashboard

Critical dash-board information and recommendation tracking provide oversight into what the status of studies, recommendations, risk ranks, safety-environmental-asset severities.

Deep Copy & Paste

Useful in situations where a node or deviation is like another and you want to capture the associated information to paste elsewhere. In these situations, a node or deviation is copied, pasted, and only the information that is different will be changed. This is much more efficient that building out a new node from scratch and helps to expedite HAZOP and LOPA meetings.

Explicit & Implicit Supported

Support for both explicit and the less common implicit LOPA. In an Explicit LOPA, the team establishes a TMEL target based on a consequence severity, then explicitly defined frequencies of cause and applies frequency modifiers such as conditional modifiers, enabling events and probabilities of failure for IPL’s. In an implicit LOPA, the team works with the concept of “LOPA credits”.

One-Source of HAZOP & LOPA Data Shared Seamlessly

Open PHA Cloud adds features that make processing HAZOP and LOPA results much easier once you return to the office. You can also easily setup individuals outside of your organization so that they can see HAZOP and LOPA results securely. This includes Kenexis if you want additional assistance with complex situations, SIL Calculations, focused QRAs, or Fault-Tree Analysis. Just like online banking, not even Kenexis can see your data in KISS unless you share it with us.

Open PHA Cloud leverages the power of the Kenexis Integrated Safety Suite to synchronize Independent Protection Layers (IPLs) in LOPA studies with the SIS lifecycle management tools in Kenexis Vertigo.  During project or conceptual design phases, Vertigo SIF lists can be automatically generated from IPL lists in Open PHA Cloud.  Following HAZOP and LOPA revalidation studies, Vertigo SIL Verification calculations and Safety Requirements Specifications can be synchronized with Open PHA Cloud automatically to update Risk Reduction and SIL Requirements.

Using Other PHA Software?

We realize that organizations have installed software applications on individual computers and transitioning to secure cloud-based solutions may either be a slow process, or in some cases not feasible yet. Because HAZOP and LOPA studies are the core of process safety documentation we believe it is important for the information contained within the HAZOP and LOPA to be easily shared across common applications and platforms.  Open PHA was developed to makes it easy for programmers with application program interfaces (APIs) to pull data from HAZOP and LOPA studies into third party and custom software tools like Power BI. This philosophy is a paradigm shift in PHA software as file data structures have historically been proprietary to prevent third-party access and discourage the use of competing software tools.

Support and service is our corporate culture, consequently KISS is kept up to date automatically and each time Open PHA desktop is started it will check to see if it is latest version and update itself at no cost as shown in the image to the left.

We will help with your transition from your existing system to Open PHA software by converting existing information, training, and ongoing support.

Security PHA Review Built-In

Easily review a HAZOP to record if the cause and safeguards can be compromised by a hacker or malware, ultimately determining if additional effort is required to secure the scenario against a cybersecurity risk.

Learn more about Security PHA Review

FAQs

It is always favorable not to mention a competitor. However, in this case we have used our competitors tools for many years and that is the reason we developed Open PHA. Open PHA is very comparable to all of the market leaders providing PHA documentation software, including PHA Works and PHA Pro.

The format and layout of the fields and forms for data entry are all similar.  Open PHA is usually considered easier to use and more aesthetic than PHA Works, and comparable to PHA Pro.  The standard content of studies is very similar between all three of the offerings.

There are two areas of significant difference:

  1. Kenexis Open PHA is free to use, with a single seat enterprise license of Open PHA Could only costing $1,000 per year, which is less than the maintenance costs for a single desktop license of our competitors software.
  2. The other area of difference is in how we handle data.  PHA Pro and PHA Works have customizable database structures that are stored as binary files, whereas Open PHA has a fixed standard database structure that is stored as a plain text file.  Open PHA provides customization by allowing the user to show or hide fields of the database but cannot change them.  While a customizable database structure may seem like an advantage, it usually causes more problems than in solves because it allows every user and consultant working on your plant to implement their own data structure.  If a single plant has many different database structures, it is impossible for them to aggregate all of the data from all of the studies into a single dashboard.  This is only possible with Open PHA Desktop and Cloud because of its fixed, open, and standardized data structure (developed in cooperation with the Purdue Process Safety and Assurance Center of Purdue University).  Additionally, Open PHA has a published structure allowing for advanced programming and compiling of data across thousands of PHA records.

Open PHA Standard has very few, if any, limitations in comparison to its competitors.  Open PHA Cloud includes a variety of additional features, many of which are not available at all from our competition, including language conversion, and bowtie diagram visualization.

Both packages are designed to work together. Let me explain.

The Open PHA Desktop version is a standalone desktop application, which stores files locally on your computer without the need for an internet connection to facilitate work in remote areas.

The licensed open PHA Cloud version of the software runs in a browser and is designed to work with the Desktop versions to provide additional benefits when the user returns to a location where they can access the internet.

Open PHA Desktop & Cloud features include:

  • Configurable HAZOP and LOPA Worksheets
  • Configurable Risk Criteria
  • Recommendation Tracking
  • Deep Copy & Paste
  • Search & Replace
  • Implicit & Explicit LOPA Support
  • Cross-Platform Support (Windows/Mac/Linux)

Open PHA Cloud added features:

  • Requires Internet Connection
  • Study / Facility Dashboard
  • Revision Manager
  • Integration with Vertigo SIS Lifecycle Management
  • One Click Report Generating from Custom *.DOCX Template
  • Study Content Translation
  • Bowtie Generation
  • PHAWorks Import
  • Share and Collaborate with Project Teams

Putting the software through its paces can be done very easily, at no cost.

You simply need to go to the Open PHA software page on our web site and download Open PHA Desktop version of the software at no cost.

You can also request a 30-day trial license of Open PHA Cloud on the same page.

Yes, both versions of Open PHA are updated frequently and actively maintained.  Our software is developed using a CI/CD process meaning updates come more frequently that with legacy desktop software.

Open PHA Cloud will always be up to date as it is a web application.

Open PHA Desktop will check for updates when you open the application if you are connected to the internet.  If an update is found it will download it in the background and install the update the next time Open PHA is closed.

There is no end-of-life plan for Open PHA.

The software is still early in its lifecycle (launched in 2017) and we are actively introducing new features.

In Open PHA Cloud, licensing is done under a concurrent user licensing model.

Concurrent licensing allows any number of users access to the software simultaneously up to the number of concurrent user licenses that you purchase.

Unlicensed, view-only access is free and unlimited. You set up a user account or invite a user for anyone who you would like to have view-only access.

Concurrent user model only applies to users who need editor privileges.

The two versions of Open PHA are intended to be used together.

Open PHA Desktop provides the basic functionality you would be expected to need to during a facilitation session without the need for an internet connection.

Open PHA Cloud provides additional features only available in the Kenexis Integrated Safety Suite like our premium reporting tools, dashboard, integration with SIS Lifecycle Management software, revision management, bowtie diagram generation, etc.

The way that product is intended to be used is for Open PHA Desktop to be used during a facilitation, where internet connection may be unreliable or unavailable, then for the study to be uploaded to Open PHA Cloud when you are back in the office and have reliable internet for finalizing the study and generating a report.  In addition, read-only access to Open PHA Cloud is no-cost, so you can share access to your studies with colleagues and clients easily without having to worry about someone modifying of deleting files.  This is how our engineers and Kenexis use of the software and how I suspect most of our users are using it as well.

To move studies between the desktop and the cloud, you can use the study import/export tool described in section 3.2.3 of the KISS Project Manager User’s manual at the following link.

https://www.kenexis.com/support-post/kiss-project-manager-users-manual/

Additionally, if you are revalidating an existing study, you can “import and a working revision” from the premium tools menu in Open PHA cloud.  This overwrites the currently working revision of a study as described in Section 5.5 of the Open PHA User’s Manual at the following link.

https://www.kenexis.com/support-post/open-pha-users-manual/

No, our software is not tied to Excel or Microsoft in any way.  In fact, Open PHA Desktop is cross-platform. It runs on Mac and Linux as well.

Open PHA Desktop and Cloud are integrated HAZOP and LOPA software used to record HAZOP and LOPA to determine SIL requirements in accordance with IEC 61511.  However, Open PHA alone does not provide all of the functionality required to comply with IEC 61511.  Open PHA Cloud is integrated with our SIS Lifecycle Management software Vertigo.  While Open PHA Desktop can be used for SIL determination, Vertigo can be used to perform the remaining SIS Lifecycle tasks like SIL Verification, SRS Development and bypass/testing tracking during the operational phases of the lifecycle.  Our Vertigo software is built around and implements the recommended practices from ISA on implementation of the IEC/ISA 61511 standard.

Our platform can provide the functionality you have described.

Open PHA software provides the HAZOP, LOPA and SIL determination functionality.

In addition, Open PHA Cloud is integrated with our Vertigo SIS Lifecycle Management software. Vertigo software extends the functionality of Open PHA Cloud to allow you to perform SIL Verification calculations, develop Safety Requirement Specifications and track the performance of a Safety Instrumented System through the life of the system.

Unfortunately, PHA-Pro is a proprietary software and Kenexis do not have the ability to read those files.

Open PHA supports translations to languages automatically. This is done by looking at the default language for your operating system or your web browser.

There is not a way for the user to manually change the language.

Currently we have support for three languages: English, Chinese and Portuguese.

We support Chinese and Portuguese because there is high demand for our software in China and Brazil where many users do not speak English as a second language.

If you have another language needed, please let us know using the Contact section at the bottom of this page and we will try to accommodate.