Planning and Budget

PERT chart 1 8 3 11 3 6 9 12 5 4 3 5 8 1 5 13 3 17 18 1 2 5 8 9 17 18 5 13 3 2 4 8 4 13 4 7 9 13

PERT chart 2 TF = lf - es - t FF = ef - es - t IF = ef - ls - t es ef n n+1 ls lf TF = lf - es - t FF = ef - es - t IF = ef - ls - t

Estimation matrix Size complexity simple medium difficult small medium large

Analysis: Interview Size complexity simple medium difficult small # man-days per interview simple medium difficult small 1.3 1.8 2.7 Size medium 1.8 2.7 3.6 large 2.7 3.6 4.5

Analysis: Data Flows Size complexity simple medium difficult small # days per technical element simple medium difficult small 0.2 0.3 0.6 Size 0.3 0.6 1.0 medium 0.6 1.0 1.5 large

Analysis: Database design complexity # man-days per file simple medium difficult small 1.0 1.5 2.2 Size medium 1.5 2.2 3.2 large 2.2 3.2 4.5

Analysis: Functional program design # man-days per program complexity simple medium difficult small 1.3 1.8 2.7 Size medium 1.8 2.7 3.6 2.7 3.6 5.4 large

Implementation: coding, testing # man-days per program complexity simple medium difficult small 10 15 20 Size medium 15 20 30 large 20 30 35

Environment corrections vague or unclear system requirements additions or modifications accepted other type of users real time systems unclear or complex interfaces with other systems modifications to other people’s programs badly defined rules, procedures or standards ICT-people have no experience with similar projects system bigger than in previous projects

Environment corrections 2 system contains legal procedures or regulations end-user must provide initial database no choice in project team end-user must officially accept the system third party must officially accept the system end-user has no system development experience work environment allows easily interruptions negative expectations concerning the system negative expectations concerning project team