KDELibs Class Analysis

	A	B	C	D	E	F	G	H	I	J	K
1	3D Tier Matrix + Color Legend
2
3		no runtime dependencies allowed				optional/OS integration runtime dependencies				mandatory runtime dependencies allowed
4	Tier 4	KDE Look/Feel/Consistency/Misc/Dumping Ground/What you might never need but might still want
5	Tier 3	Functional				Integration				Solution	cross-dependencies allowed
6		Core	Gui	Widget	...	Core	Gui	Widget	...
7	Tier 2	Functional				Integration				Solution	no dependencies to anything in Tier >= 2, dependencies on Tier 1 only towards bottom left
8		Core	Gui	Widget	...	Core	Gui	Widget	...		exception: same technology third dimension split
9	Tier 1	Functional				Integration				Solution	no dependencies to anything in Tier >= 1, "Stuff that should be in Qt"
10		Core	Gui	Widget	...	Core	Gui	Widget	...		exception: same technology third dimension split
11	Tier 0	Interfaces
12	Tier -1	The gray background of death (deprecation)
13	Tier -2	Ready for removal (unused + deprecated)
14	Tier-INF+2	Highly questionable and needing more research
15	Tier-INF+1	Qt
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19	General rule: No dumping ground libs
20	Slightly less general rule: avoid micro-libraries if possible
21	Quite general rule: Don't duplicate code to bypass the two-use rule
22	Forbidden library name parts (to avoid dumping ground libs):
23	util
24	tool
25	stuff
26	mess
27	extra
28	misc
29	addons
30	other
31	bits
32	spreadsheet cell references
33	fakes
34	general
35	extension
36	support
37
38	Porting Commitments Scale
39	Ring 0	kdelibs
40	Ring 1	the stuff formerly known as kdebase
41	Ring 2	KDE SC
42	Ring 3	Extragear (incl. KDevelop, Calligra, etc)
43	Ring 4	Playground
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