**Table 1:** Comparison of some observed properties of the galactic disk in the solar neighbourhood with model results.
Observable	Model	Observed	Reference
Total surface density $\Sigma _{\rm tot}$ [ $M_{\odot}~{\rm pc^{-2}}$ ]	56	50-62	Holmberg & Flynn (2004)
ISM surface density $\Sigma _{\rm ISM}$ [ $M_{\odot}~{\rm pc^{-2}}$ ]	9.7	7-13	Dickey (1993)
		13-14	Olling & Merrifield (2001)
Gas fraction $\Sigma_{\rm ISM}/\Sigma_{\rm tot}$	0.17	0.05-0.2
Surface density of visible stars $\Sigma_*$ [ $M_{\odot}~{\rm pc^{-2}}$ ]	38.6	30-40	Gilmore et al. (1989)
Surface density of stellar remnants [ $M_{\odot}~{\rm pc^{-2}}$ ]	7.7	2-4	Mera et al. (1998)
Star formation rate B [ $M_{\odot}~{\rm pc^{-2}~Gyr^{-1}}$ ]	3.1	3.5-5	Rana 1991
SN II rate $R_{\rm SNII}$ [ ${\rm pc^{-2}~Gyr^{-1}}$ ]	0.016	0.009-0.0326	Tammann et al. (1994)
SN Ia rate $R_{\rm SNIa}$ [ ${\rm pc^{-2}~Gyr^{-1}}$ ]	0.0024	0.0015-0.0109	Tammann et al. (1994)
Infall rate [ $M_{\odot}~{\rm pc^{-2}~Gyr^{-1}}]$	1.45	0.5-5	Braun & Thilker (2004)

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