
The present status of scientific and technological factual databases is reviewed. The number of source information which should be entered into a materials database is very large, therefore the databases must be optimally structured in records and files. As an example, the structure of JICST TH (the Japan Information Center of Science and Technology Thermophysical and Thermochemical Property Database) is presented. Discussion is made on characteristics of data items, validation of materials databases, the present status and future aspect of delivery and database systems.
| citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 4 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |
