1. COSYSMO: Constructive Systems Engineering Cost Model
Ricardo Valerdi
USC CSE Workshop
October 25, 2001

2. COSYSMO Outline COSYSMO The Challenge EIA632 Proposed Approach Data
Output/Milestones
Q & A

3. COSYSMO
What is it?
The purpose of COSYSMO is to enhance the current capability of the COCOMO II model by accounting for costs that are outside the realm of software engineering by introducing system engineering drivers.

4. COSYSMO
The Challenge
To develop a preliminary model for estimating the cost impact of front-end System Engineering tasks in the design of software intensive systems.
These include system definition, integration, and test activities as defined in EIA632.

5. COSYSMO EIA632 33 requirements organized into 5 groups:
Acquisition and supply
Technical management
Planning process
Assessment process
Control process
System design
Requirements definition process
Solution definition process
Product realization
Technical evaluation

6. COSYSMO Proposed Approach
Begin with Increment I: front-end costs of information systems engineering
Follow 7-step modeling methodology
Steps 5,6, & 7 (gather data and refine loop)
Use model parameters compiled by TRW, SAIC, Raytheon, and USC/CSE
System size (functional reqs, TPMs, SIT)
Effort drivers (maturity, cohesion, stability)
INCOSE/FAA, Rational

7. Proposed Approach (cont)
COSYSMO
Proposed Approach (cont)
Develop preliminary model using data from real projects that have been completed (2 or 3)
Test the model on other projects that have been completed (2 or 3)

8. COSYSMO
Data
Need to find 4 to 6 projects that have been completed in order to build and test the model
They can differ in size, scope
Any volunteers?

9. COSYSMO Output/Milestones
Findings will be presented in the form of a report or white paper
Half of the work to be done prior to December, other half to be done prior to March
Don Greenlee from SAIC/INCOSE in San Diego has volunteered to participate

10. COSYSMO Q & A Is this the right direction? Where can I get data?
What are some resources?