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Friday, July 26, 2013

PPT On ESTIMATICS

Presentation On ESTIMATICS
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ESTIMATICS Presentation Transcript:
1.ESTIMATICS

2.What is Estimatics ?
Rubin has developed a proprietary software estimating model that utilizes gross business specifications for its calculations.  The model provides estimates of total development effort, staff requirements, cost, risk involved, and portfolio requirements, cost, risk involved, and portfolio effects. At present, the model addresses only the development portion of the software life cycle, ignoring the maintenance or post-deployment phase. The ESTIMACS model addresses three important aspects of software management—estimation, planning, and control .

3.Modules Of Estimatics
There are 5 main  MODULES of Estimatics :-

1. System development effort estimator

2. Staffing and cost estimator

3. Hardware configuration estimator

4. Risk Estimator

5. Portfolio analyzer
  They’ll be explained in detail now .

4.System development effort
This module requires responses to 25 questions regarding the system to be developed, development environment, etc. It uses a database of previous project data to calculate an estimate of the development effort.

5.Staffing and cost
Inputs required  are:  the  effort  estimation  from above, data on employee productivity, and salary for each skill level.  Again, a database of project information is used to compute the estimate of project duration, cost, and staffing required.

6.Hardware configuration
Inputs required are: information on the operating environment for the software product, total expected transaction vol- ume, generic application type, etc.  Out- put is an estimate of the required hard-
ware configuration.

7.Risk Estimator
This module calculates risk using answers to some 60 questions on project size, structure, and technology.  Some of the answers are computed automatically from other information already available.

8.Portfolio Analyzer
This module calculates risk using answers to some 60 questions on project size, structure, and technology.  Some of the answers are computed automatically from other information al- ready available.

9.Conclusion
The ESTIMACS system has been in use for only a short time.  In the future, Rubin plans to extend the model to include the maintenance phase of the software life cycle.   He claims that estimates of
the total effort are within 15% of actual values.

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