Concerned by several users, reading files interfering with write access to the files

I have a LV MY application that will run in several places/computers. Each will create a single HTML report and update frequently. These HTML files will be accessed and combined by another application of LV in a new HTML file that will be updated frequently. All HTML files could be opened by a user at any time in a web browser.

What concerns me, it's HTML reports could be avoided by a user, or the application of the combination to be written by the app MY? If the user or application combining a box open report she always written by the app MY? It goes the same for the app combining prevented to be written if a user has his open output HTML code?

Each HTML file can only be written by an application but read by many potential users and/or an app.

All programs run independently and asynchronously. Each application runs on its own computer and files all exist in a network location.

Can I do this by controlling all users file privileges? If anyone has read only permissions except the written computer the HTML file that will be enough?

MES Manufacturing Execution System is

Thank you

Judd

I guess as long users see the reports with a web browser, it should be no problem.

Browsers Web do not "lock" a file when they open it like Word or Excel because web browsers are not and should not modify or change the file somehow.

If only one person could display a web page to internet time would not work as we know it.

But if you're worried about it use LabView to lock files during execution of the program. Only in this way, users can open the file as read-only if they use something that can change the files. If you use the standard LabView open file read/write vi passing a file reference, then this will be done automatically.

Tags: NI Software

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