Chapter 1 The Hong Kong education and assessment systems.- Chapter 2 The role of the Hong Kong examinations and assessment authority.- Chapter 3 Onscreen marking system.- Chapter 4 Review of research into onscreen marking and a description of the methodological approaches and analytical tools used in the OSM validation studies.- Chapter 5 The first validation study: Comparing OSM and PBM in English Language HKCEE (Grade 11) essays using classical statistics and Rasch measurement.- Chapter 6 The second validation study: A qualitative study of the response of markers towards onscreen and paper-based marking.- Chapter 7 The third validation study: Markers' perceptions of the onscreen marking of Liberal Studies in the Hong Kong public examination system.- Chapter 8 The fourth validation study: A qualitative examination of the attitudes of Liberal Studies (LS) markers towards onscreen marking in Hong Kong.- Chapter 9 The fifth validation study: Examining negative attitudes towards OSM in Hong Kong.- Chapter 10 The sixth validation study: Assessing the ease of use in the environment and markers' acceptance of onscreen marking in Hong Kong in three subject areas: A rasch measurement.- Chapter 11 The seventh validation study: The increasing acceptance of onscreen marking: The 'IPAD effect'.- Chapter 12 The eighth validation study: The effects of key demographic variables on markers' perceived ease of use and acceptance of onscreen marking.- Chapter 13 The final validation study: A comparative picture of the ease of use and acceptance of onscreen marking by markers across subject areas.- Chapter 14 Conclusion.