Software Project Management: Estimation

Software Project Management: Estimation:

Software Project Management

• Software project management is especially difficult

• Software project management : The Manager’s View

Process/Project/Product/People People

Project

RFP Process Product Methods Tools

Metrics

• Numerical measures that quantify the degree to which software, a process or a project possesses a given attribute

• Metrics help the followings

– Determining software quality level

– Estimating project schedules

– Tracking schedule process

– Determining software size and complexity

– Determining project cost

– Process improvement

Software Metrics

•  Without measure it is impossible to make a plan, detect problems, and improve a process and product

• A software engineer collects measure and develops metrics so that indicators will be obtained

• An indicator provides insight that enables the project manager or software engineers to adjust the

process, the project, or the product to make things better Software Metrics

• The five essential, fundamental metrics:

– Size (LOC, etc.)

– Cost (in dollars)

– Duration (in months)

– Effort (in person‐month)

– Quality (number of faults detected)

Product Size Metrics

• Conventional metrics

– Size‐oriented metrics

– Function‐oriented metrics

– Empirical estimation models

• Object‐Oriented metrics

– Number of scenario scripts

– Number of key classes

– Number of support classes

– Average number of support classes per key classes

• User‐Case oriented metrics

Product Size Metrics (cont’d)

• Web engineering product metrics

– Number of static web pages

– Number of dynamic web pages

– Number of internal page links

– Number of persistent page links Estimate Uncertainty