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analysis and management of safety and reliability

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[CARA-
FaultTree]

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information]

[light edition spec]

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SPECIFICATION OF THE LIGHT EDITION OF CARA-FaultTree v4.1

CARA-FaultTree is also available in a scaled-down Light edition. The Light edition may be sufficient for the user that are only interested in drawing smaller fault trees, obtaining the minimal cut sets and performing the most basic calculations.

In the table below, the differences between the Light edition compared to the  Professional version is given. Please refer to Product information and Technical
information
for more information on the Professional version.

Content

Professional

Light

General

Number of fault tree pages (max)

200

8

User levels

Standard and Expert

Standard

User’s Manual and Help system

Printed and electronic

Electronic only

Edit, import/export

Support of "Event classes"

Yes

Yes

Input event data in tabular form

Yes

No

Import from former DOS-version

Yes

No

Import / Export event data

Yes

No

Qualitative and quantitative analysis

Minimal cut sets

- List minimal cut sets

Yes

Yes

- Cut set unavailability

Yes

No

- Cut set importance

Yes

No

Q0(t) – Unavailability

- Upper bound approximation

Yes

Yes

- Exact calculation (ERAC)

Yes

No

Uncertainty of Q0(t)

Yes

No

Average availability

Yes

No

R0(t) - Survival probability

Yes

No

MTTF - Mean time to first failure

Yes

No

Failure frequency distribution

Yes

No

Frequency of TOP event

Yes

No

Component importance

- Birnbaum’s reliability

Yes

Yes

- Birnbaum’s structural

Yes

No

- Vesely-Fussel

Yes

No

- Criticality importance

Yes

No

- Improvement potential

Yes

No

- Order of smallest cutset

Yes

No


Sydvest, Trondheim, Norway
E-mail: post@sydvest.com
Contact details: see "Contact us"
Last modified: 14.10.2005 by jrv