| Time related factors | ||
| Factor | % | Rank |
| Large number of deliverables | 26.10% | 1 |
| Lack/insufficient resources, especially rare | 23.40% | 2 |
| Large number of dependencies between activities | 10.70% | 3 |
| Large number of project activities | 8.40% | 4 |
| Long project duration | 7.40% | 5 |
| Number of critical activities | 7.00% | 6 |
| Lack/insufficient time management experience | 6.50% | 7 |
| Lack/insufficient time management tools | 4.50% | 8 |
| Other time related factors | 3.70% | 9 |
| Long duration activities | 2.30% | 10 |
| Cost related factors | ||
| Factor | % | Rank |
| Budget changes and budget cuts | 28.60% | 1 |
| Insufficient project planning | 16.30% | 2 |
| Financing from various sources | 12.70% | 3 |
| Time consuming approval mechanisms | 10.10% | 4 |
| Lack/insufficient of costing data for the specific project | 6.60% | 5 |
| Project duration and timeframe | 6.50% | 6 |
| Other costing factors | 5.30% | 7 |
| Team know-how and experience | 5.30% | 8 |
| Lack/insufficient of cost management tools | 4.40% | 9 |
| Lack/insufficient of historical costing data | 4.20% | 10 |
| Quality related factors | ||
| Factor | % | Rank |
| Lack of QA department | 41.40% | 1 |
| Insufficient definition and communication of quality objectives for project | 21.10% | 2 |
| Lack/insufficient of responsible personnel on quality procedures | 19.10% | 3 |
| Lack/insufficient quality management tools | 12.50% | 4 |
| Not well known quality procedures and mechanisms | 5.90% | 5 |