| Homepage | CD-ROM | Book | ||
| Cost of Publishing/Delivery
(None(0) - High(100)) | 0.001 | 1 | 100 | |
| Revision
(Easy(0) - Difficult(100)) | 0.0001 | 1 (Reprint) | 100 (Reprint) | |
| User's Requirement
(None(0) - Much(100)) | 100 (Internet & Computer) | 10 (Computer with CD-Drive) | 0 | |
| Chance for Reaching Teachers (%) | Depends on prevalence of Computer & Internet | ? | 0 | |