SoftwareDevelopmentMeasurementandAnalysis课件幻灯片.ppt

Software Development Measurement and Analysis Agenda Methodology Concept of measurement Measurement Information model Measurement process model Analysis Techniques Example Lesson Learned CMMI Introduction Concept of measurement Why Measure? Communicate effectively Track specific project objectives Identify and correct problem Make key trade off decisions Justify decisions Predict Improve What be Measured? Software processes Software products Concept of measurement When Measure? Measurement Information model Measurement information model relationships Measurement Information model Evolution of an information needs into a measurement plan Measurement Information model Levels of a measurement construct Indicator A measure that provides an estimate or evaluation of specified attributes derived from an analysis model with respect to defined information needs Derived measure A measure or quantity that is defined as a function of two or more base and/or derived measures Base measure A measure of a single attribute defined by a specified measurement method Attribute A distinguishable property or characteristic of a software entity, Entity include: Processes, Product, Projects, Resource Measurement Information model Measurement process model Establish and sustain commitment Plan measurement Perform measurement Evaluate measurement Measurement process model Establish and sustain commitment Measurement process model Plan Measurement Identify and prioritize information needs Select and specify measures Integrate into the project processes Measurement process model Perform Measurement Collect and process data Analysis data Make recommendations Measurement process model Evaluate Process Evaluate measures Evaluate measurement process Analysis Techniques Estimation Feasibility Analysis Performance Analysis Analysis Techniques Estimation process Producing estimates of size, effort, schedule, and quality for plan or re-plan Analysis Techniques Feasibility Analysis process Assessing