Resource type: MARC to Instance

Current mapping: If there is a 336$b that matches the spelled-out version of a code in 336$b, then assign that code (so that more resource types are filterable). If no 336$b and term in code 336$a is not recognized, assign Resource Type unknown, code zzz.

Problem reported by Stanford: Hi, we (Stanford) are scheduled to go live in August. Currently, in our folio test system, about 2/3 of our instance records are designated as "unspecified" in the Resource Type facet. It appears that only records that have a 336 field would get a useful value assigned, and the rest are all "unspecified". My question is, is there some other way to assign a resource type value via record loading if the record does not have a 336 field, for example by using the value of Leader/06 of the MARC record?

Possible solution:

Assign the resource type text based on the code in 336$b
If no 336$b or the value in 336$b does not match any FOLIO resource type codes, then inspect the 336$a
If value in 336$a matches the spelled out version of a code that would usually be in 336$b, then assign that code
If no 336$b or 335$a, or the values in 336$b and 336$a do not match ant FOLIO resource type codes, then inspect Leader byte 06
If value in Leader byte 6 aligns with one of the resource types shown in the table below, assign the associated resource type code
For all the red values, we need to determine one resource type that the LDR value would map to

	Resource type text (336$a)	Resource type code (336$b)	Possible LDR/06 fallback value (if no useable 336$b or $a)	Notes	SME Notes

	Resource type text (336$a)	Resource type code (336$b)	Possible LDR/06 fallback value (if no useable 336$b or $a)	Notes	SME Notes
1	cartographic dataset	crd	e (cartographic material) or m (computer file)?	if LDR value e can only map to one resource type code, which one should it map to? if LDR value m can only map to one resource type code, which one should it map to?
2	cartographic image	cri	e (cartographic material) and f (manuscript cartographic material) or k (two-dimensional nonprojectable graphic)?	if LDR value e can only map to one resource type code, which one should it map to? if LDR value k can only map to one resource type code, which one should it map to?
3	cartographic moving image	crm	e (cartographic material) or g (projected medium)?	if LDR value e can only map to one resource type code, which one should it map to? if LDR value r can only map to one resource type code, which one should it map to?
4	cartographic tactile image	crt	e (cartographic material)	if LDR value e can only map to one resource type code, which one should it map to?
5	cartographic tactile three-dimensional form	crn	e (cartographic material) or r (three-dimensional artifact or naturally occurring object)?	if LDR value e can only map to one resource type code, which one should it map to? if LDR value r can only map to one resource type code, which one should it map to?
6	cartographic three-dimensional form	crf	e (cartographic material) or r (three-dimensional artifact or naturally occurring object)?	if LDR value e can only map to one resource type code, which one should it map to? if LDR value r can only map to one resource type code, which one should it map to?
7	computer dataset	cod	m (computer file)	if LDR value m can only map to one resource type code, which one should it map to?
8	computer program	cop	m (computer file)	if LDR value m can only map to one resource type code, which one should it map to?
9	notated movement	ntv	no fallback
10	notated music	ntm	c (notated music) d (manuscript notated music)	if LDR value c can only map to one resource type code, which one should it map to?
11	other	xxx	no fallback
12	performed music	prm	j (musical sound recording)
13	sounds	snd	i (nonmusical sound recording)	if LDR value i can only map to one resource type code, which one should it map to?
14	spoken word	spw	i (nonmusical sound recording)	if LDR value i can only map to one resource type code, which one should it map to?
15	still image	sti	k (two-dimensional nonprojectable graphic)	if LDR value k can only map to one resource type code, which one should it map to?
16	tactile image	tci	k (two-dimensional nonprojectable graphic)	if LDR value k can only map to one resource type code, which one should it map to?
17	tactile notated movement	tcn	no fallback
18	tactile notated music	tcm	c (notated music)	if LDR value c can only map to one resource type code, which one should it map to?
19	tactile text	tct	a (language material)	if LDR value a can only map to one resource type code, which one should it map to?
20	tactile three-dimensional form	tcf	r (three-dimensional artifact or naturally occurring object)	if LDR value r can only map to one resource type code, which one should it map to?
21	text	txt	a (language material) t (manuscript language material)	if LDR value a can only map to one resource type code, which one should it map to?
22	three-dimensional form	tdf	r (three-dimensional artifact or naturally occurring object)	if LDR value r can only map to one resource type code, which one should it map to?
23	three-dimensional moving image	tdm	g (projected medium) or r (three-dimensional artifact or naturally occurring object)?	if LDR value g can only map to one resource type code, which one should it map to? if LDR value r can only map to one resource type code, which one should it map to?
24	two-dimensional moving image	tdi	g (projected medium)	if LDR value g can only map to one resource type code, which one should it map to?
25	unspecified	zzz	no fallback
26	n/a	n/a	o	kit (ignore)
27	n/a	n/a	p	mixed materials (ignore)