Of our design goals, this proved to be most troublesome in practice. Our subgoals included:
That we largely succeeded in accomplishing these goals is due to two factors. First, the determination of many members of the WG and SIG to stick with SGML compatibility, even when there were good design reasons for abandoning it. Second, the active participation and co-operation of the SGML community, led by Charles Goldfarb, in ensuring that the load of ensuring that XML and SGML remained compatible was shared by both parties.
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