ITIL 4 update

有关ITIL4的一个简单介绍的小册子。英文的。 1. ITIL v1 – ITIL v3: Historical Highlights 2. Why Was ITIL 4 Developed? 3. ITIL Stakeholders 4. ITIL 4 Development Plan 5. Guiding Principles 6. ITIL 4 Certification Scheme