Relex Reliability Software “the intuitive solution!” Relex Software ...

lumpysteerSoftware and s/w Development

Dec 2, 2013 (3 years and 6 months ago)

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Relex

Reliability Software

“the intuitive solution!”



Relex Software Corporation

1

Relex Life Cycle Cost

Life Cycle Cost Analysis


Calculate all lifetime costs of a system


Calculate Net Present Value (NPV)


Perform Sensitivity Analysis


Evaluate Alternatives

4

What is Relex LCC?


A capable life cycle cost package


Establish the system cost breakdown structure
(CBS)


Use the equation editor to assign cost equations


May be installed…


As an integral part of a Relex package


As a stand
-
alone package

5

What does Relex LCC do?

1. Develop “cost models” for each element

2. Calculate the total life cycle cost

3. Generate useful reports

6

Relex
Life Cycle Cost

Relex

LCC

Database

Reliability Data

Maintainability Data

Cost, etc.

Relex

Project


Database

Relex Life Cycle Cost

8

Establishing the CBS...

A simple example:


Total System Cost


Research and Development Cost


Investment Cost


Operations and Maintenance Cost


System Phaseout and Disposal Cost

9

Extending the CBS...

Operations and Maintenance Cost


Operations Cost


Operating Personnel Cost


Operator Training Cost


Operational Facilities Cost


Support and Handling Equipment Cost


Maintenance Cost


System/Equipment Modifications Cost

10

Once CBS Established. . .


Define equations for CBS items


Operational Facilities Cost =

Operational facility space cost ($/sq. ft./site)

*

Number of operational sites

*

Facility space requirements (sq. ft.)

11

Levels of Data in Relex LCC


CBS


Variables


Alternatives


Time Intervals

12

LCC Variables


Store data pertinent to calculating cost


Simplify entry of cost equations


There are 3 types of Variables:


Common variables


Item variables


Project variables


Stored within variables files in LCC file

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Project Independent Variables


Common Variables

“global variables”/applicable to all CBS items


Item Variables

“special variables”/applicable to specific CBS item

14

Project Variables


Link LCC to data in Project file(s)


May be inserted in cost equations


Included automatically in each LCC file


Example: Project Failure Rate

15

Alternatives


Link LCC analysis to data in Project file(s)


Determine most cost effective solution


Example:

Alternative #1: completely redesign a system

Alternative #2: modify the current design


Stored in Alternatives file w/i LCC file


Allow for custom calculations

16

Time Intervals


Consider costs in various time intervals


Interval may be any unit of time


Each interval represents an
equivalent duration


Example: 5 year period, 5 one year intervals

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Time Intervals


Define “interest rate” (or inflation rate)


Determine Net Present Value (NPV)


Incur costs now or later?

18

Variable Definition


Constant


Varies over Alternatives


Varies over Time Intervals


Varies over Alternatives & Time Intervals

19

Step
-
by
-
Step LCC Analysis

1. Create/open LCC file

2. Establish the Cost Breakdown Structure

3. Define Alternatives

4. Define Time Intervals

5. Define Variables

6. Enter cost equations for CBS items

7. Calculate and generate reports

Relex Demonstration