SteelFrame — Terms of Use

SteelFrame and SteelFrame Studio are a mainframe-compatible environment provided for training, development, evaluation, and testing.

Last updated: 2 September 2026

1. Acceptance

By logging on to or otherwise using SteelFrame or SteelFrame Studio (together, the “Platform”), you agree to these Terms of Use. If you do not agree, do not use the Platform. Continued use after any change to these terms constitutes acceptance of the current version.

2. Permitted use — training, development & testing

The Platform is made available solely for training, learning, development, evaluation, demonstration, and testing. Any other use, including production or business-operational use, is not permitted. You may not rely on the Platform for the processing, storage, or safekeeping of any data of value.

3. Your data and responsibilities

• You are responsible for all data, code, and workloads you load into or run on the Platform.
• Do not upload or process real, confidential, proprietary, personal, or regulated data. Use only synthetic, sample, or non-sensitive test data.
• You are responsible for complying with any third-party licenses applicable to code or data you bring to the Platform, and for ensuring you have the right to use it.
• The Platform is a shared, resettable environment. Where a planned reset is needed we will notify you beforehand (section 5), but data can still be lost from an unplanned outage, so keep your own copies of anything you need.

4. Privacy notice

This section explains what personal information the Platform collects when you request a user ID, why, and how it is handled. It is short because the Platform collects very little.

• What we collect. When you request a user ID through “Get User ID” self-service registration, we record the user ID you choose, the email address you enter, and the date and time of registration. Once you are signed on, anything you create under your user ID — datasets, members, jobs, program source, spool output and similar — is stored on the Platform under that user ID. We do not ask for your name, address, or payment details to use the Platform.
• Why we use your email address. Your email address is used to verify that you own the user ID, and to reset your password or handle other account requests you make. Each email address can be registered to one user ID. We do not use it for any other purpose.
• Where it is kept. The user ID–email mapping is held in the Platform’s account registry, separate from the emulated z/OS security database. Your email address does not appear in the emulated security database, in security-database unloads, or in LISTUSER-style output.
• Access and isolation model. Every user ID has read-only access to the shared estate programs and files. Anything you create under your own user ID is private to you — only you can read, change, or delete it. As on any mainframe, Platform administrators hold system-level authority and may access data on the Platform where necessary to operate, secure, support, or reset it.
• Credentials. New user IDs are created with a random one-time temporary password that is shown to you once, on screen, at registration and is already expired: you must set a new password at first sign-on. Keep the temporary password to yourself, sign on promptly, and never reuse a password from another system.
• Activity records. Like a real mainframe, the Platform keeps system logs, job output, and an audit trail of actions taken through its interfaces. These records include your user ID and what you did; cleartext credentials are scrubbed before they are written. They are used to operate, secure, and troubleshoot the Platform.
• Retention and removal. The Platform is a shared, resettable environment (section 3), so data you create may be reset or deleted at any time. If you want your user ID and email address removed from the account registry, contact us using the details in section 10; removal ends your access to the Platform.
• Your own data. Do not enter personal data about yourself or anyone else into the Platform beyond the registration email address (see section 3).

5. Retention, isolation, deletion

SteelFrame is a shared estate with per-user-ID isolation, not a dedicated instance. All user IDs have read-only access to the shared estate; anything you create under your own ID is private to you. Administrators hold system-level authority, as on any mainframe.

The environment is resettable. Where a reset is needed, we will notify you beforehand so you can preserve anything you want to keep. We would still suggest keeping your own copies of your test artefacts, as we cannot rule out loss from an unplanned outage.

6. No warranty (“as is”)

The Platform is provided “AS IS” and “AS AVAILABLE,” without warranties of any kind, whether express, implied, or statutory, including without limitation any implied warranties of merchantability, fitness for a particular purpose, accuracy, reliability, title, or non-infringement. No warranty is made that the Platform will be uninterrupted, secure, error-free, or that any result, output, or emulated behavior is correct or complete. You use the Platform entirely at your own risk.

7. Limitation of liability

To the maximum extent permitted by applicable law, the provider and its contributors shall not be liable for any direct, indirect, incidental, special, consequential, exemplary, or punitive damages, or for any loss of data, profits, revenue, goodwill, or business interruption, arising out of or relating to your use of or inability to use the Platform, even if advised of the possibility of such damages. Your sole and exclusive remedy for dissatisfaction with the Platform is to stop using it.

8. Acceptable use and security

You may not use the Platform for any unlawful purpose, nor attempt to gain unauthorized access to, disrupt, degrade, overload, or compromise the Platform, any hosting infrastructure, or any other user’s data or sessions. You may not reverse-engineer, decompile, or circumvent access controls except to the extent such restriction is prohibited by applicable law. The provider may suspend or terminate access at any time to protect the Platform or its users.

9. Trademarks and independence

SteelFrame is an independent, clean-room compatibility implementation, not affiliated with, sponsored by, or endorsed by IBM. IBM, z/OS, CICS, Db2, RACF, MVS, and ISPF are trademarks or registered trademarks of International Business Machines Corporation; such names appear solely to identify compatibility and do not imply any association or endorsement. All other product and company names may be trademarks of their respective owners.

10. Company information

SteelFrame is developed by Osome Apps Inc. in Manila, Philippines. We also operate a Singapore entity, Lions Agentix Pte. Ltd., which handles commercial and contracting matters, including any licence, subscription, or service agreement relating to the Platform. References in these terms to “the provider,” “we,” or “us” mean these two companies, as applicable.

For account requests (including password resets and removal of your registration, section 4) or questions about these terms, contact us using the details shown on the logon panel.

11. Changes to these terms

These Terms of Use may be updated from time to time. The version shown here, with the “last updated” date above, is the current version. Continued use of the Platform after an update means you accept the updated terms.