for the year ended 31 March 2006
| Databases | Internal use | Internally | Acquisition | Total | |||
| software | generated | intangibles | |||||
| software | |||||||
16. Other intangible assets |
Notes | £m | £m | £m | £m | £m | |
| Cost | |||||||
| At 1 April 2005 | 274 | 196 | 77 | 69 | 616 | ||
| Differences on exchange | 16 | 5 | 2 | 6 | 29 | ||
| Additions through business combinations | 11 | 1 | – | – | 219 | 220 | |
| Other additions | 53 | 39 | 19 | – | 111 | ||
| Transfer between assets | – | – | – | 22 | 22 | ||
| Disposal of subsidiaries | – | (15) | – | (12) | (27) | ||
| Disposals | (8) | (21) | (3) | – | (32) | ||
| At 31 March 2006 | 336 | 204 | 95 | 304 | 939 | ||
| Amortisation and impairment losses | |||||||
| At 1 April 2005 | 154 | 98 | 40 | 11 | 303 | ||
| Differences on exchange | 7 | 2 | – | 2 | 11 | ||
| Transfer between assets | – | – | – | 2 | 2 | ||
| Charge for the year | 49 | 32 | 12 | 37 | 130 | ||
| Disposal of subsidiaries | – | (7) | – | (3) | (10) | ||
| Disposals | (7) | (21) | (1) | – | (29) | ||
| At 31 March 2006 | 203 | 104 | 51 | 49 | 407 | ||
| Net Book Value at 31 March 2005 | 120 | 98 | 37 | 58 | 313 | ||
| Net Book Value at 31 March 2006 | 133 | 100 | 44 | 255 | 532 |
| Databases | Internal use | Internally | Acquisition | Total | ||
| software | generated | intangibles | ||||
| use | software | software | ||||
| £m | £m | £m | £m | £m | ||
| Cost | ||||||
| At 1 April 2004 | 257 | 155 | 86 | – | 498 | |
| Differences on exchange | (4) | (1) | – | – | (5) | |
| Additions through business combinations | 4 | (1) | 1 | 62 | 66 | |
| Other additions | 48 | 46 | 13 | – | 107 | |
| Transfer between assets | (1) | – | – | 7 | 6 | |
| Disposal of subsidiaries | – | – | (7) | – | (7) | |
| Disposals | (30) | (3) | (16) | – | (49) | |
| At 31 March 2005 | 274 | 196 | 77 | 69 | 616 | |
| Amortisation and impairment losses | ||||||
| At 1 April 2004 | 139 | 70 | 44 | – | 253 | |
| Differences on exchange | (3) | – | – | – | (3) | |
| Transfer between assets | (1) | – | 1 | – | – | |
| Charge for the year | 46 | 30 | 14 | 11 | 101 | |
| Disposal of subsidiaries | – | – | (5) | – | (5) | |
| Disposals | (27) | (2) | (14) | – | (43) | |
| At 31 March 2005 | 154 | 98 | 40 | 11 | 303 | |
| Net Book Value at 31 March 2004 | 118 | 85 | 42 | – | 245 | |
| Net Book Value at 31 March 2005 | 120 | 98 | 37 | 58 | 313 |