New version 2.1 is released (September 2016)

By | 2016-09-20

An intermediate new version of both SafetyBarrierManager and SafetyBarrierViewer has been issued. Apart from  some bugfixes, the following improvements have been included:

New projects

The “New Project” button now leads the user through an intuitive process of starting a new project. The new project is either based on a template, an existing project or built completely from scratch. The installation file contains about 4 templates. All the necessary steps are prompted, so that the user quickly and smoothly arrives at the point where one can “draw barriers”. The Help file is updated accordingly.

Associated file types

The program now can use input files with specific extensions: “.sbmx” for project files, and “.sbmt” for template files. These file types are associated with the SafetyBarrierManager program, and have their own icons:

Icon for sbmx file type Icon for sbmt file type

Double clicking such a file in the Windows file explorer will start the program and open the selected file.

Input to AND gate

The program did not allow more than one input of type “event” (characterized by an expected frequency of occurrence) as input to a logical “AND” gate. This is too restrictive: if events originate from the same precursor event, this should be allowed, and this has now been implemented in the new version. So the following construction is now possible:

two events input to an AND gate

Two events originating from a joint precursor can be input to an AND gate

Of course, this diagram is logically equivalent with:

Logical equivalent

Logical equivalent of previous diagram

But sometimes one wants to collect the alternative outputs of a scenario, and the first diagram can be split into two diagrams at the events “B1 passed” and “B2 Passed”. The help file explains the requirements for AND and OR gates.

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