The third work,

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PSP table

PSP2.1	Personal Software Process Stages	Estimated time consuming (minutes)	The actual time-consuming (minutes)
Planning	plan	30	20
Estimate	Estimate how much time this task requires	700	800
Development	Develop	600	700
Analysis	Needs analysis (including learning new technologies)	60	90
Design Spec	Generate design documents	10	10
Design Review	Design review (and colleagues reviewed the design documents)	10	10
Coding Standard	Code specifications (development of appropriate norms for the current development)	10	10
Design	Specific design	60	60
Coding	Specific coding	300	500
Code Review	Code Review	60	60
Test	Test (self-test, modify the code, submit modifications)	180	180
Reporting	report	180	180
Test Report	testing report	90	100
Size Measurement	Computing workload	15	15
Postmortem & Process Improvement Plan	Later summarized, and process improvement plan	60	60
	total	600	740