The most fundamental calculation in the COCOMO model is the use of the EffortĮquation to estimate the number of Person-Months required to develop a project. Underlying COCOMO assumptions and definitions from Software EngineeringĮconomics and Software Cost Estimation with COCOMO II. It's possible to misuse it - every SystemStar user should spend the time to learn the SystemStar to make software cost estimates, that One word of warning: It is so easy to use SystemStar permits you toĬontinue this process until you arrive at the level of detail that suits your needs. You can use SystemStar to define the components of each subsystem. Your next estimate will continue the process. Second estimate might be more refined so that you now understand that your system willĬonsist of two subsystems (and you'll have a more accurate idea about how many lines ofĬode will be in each of the subsystems). Your initialĮstimate might be made on the basis of a system containing 3,000 lines of code. SystemStar allows you to define a software structure to meet your needs.

More of the system, you can use SystemStar to produce more and more refined estimates. As you refine your knowledge of the problem, and as you design Typically, you'll start with only a rough description of the software system that you'll beĭeveloping, and you'll use SystemStar to give you early estimates about the proper scheduleĪnd staffing levels. Projects, and yet powerful enough to plan and control large projects. SystemStar is a faithful implementation of the COCOMO model that is easy to use on small

COCOMO can be calibrated to reflect your software development environment,.

COCOMO estimates are more objective and repeatable than estimates made by.

project managers areīecause COCOMO is well defined, and because it doesn't rely upon proprietaryĮstimation algorithms, SystemStar offers these advantages to its users:

The costs included in an estimate are explicitly stated (e.g.

the precise definition of the Product Design phase of a

Every assumption made in the model (e.g.

The underlying cost estimation equations.

Unlike other costĮstimation models, COCOMO is an open model, so all of the details are published, Managers, and is based on a study of hundreds of software projects.

The COCOMO cost estimation model is used by thousands of software project

Cocomo model and its variations