Here are the areas that should be documented (see gittrac #2815).  I re-ordered them somewhat to make the list more logical in terms of related functionality.

*: {wiki: DagOverview Overview of DAGMan}
*: {wiki: CondorSubmitDag Condor_submit_dag/scheduler universe startup}
*: {wiki: DagFileParsing DAG file parsing}
*: {wiki: RescueDag Rescue DAG/condor_rm of DAGMan}
*: {wiki: DagRecovery Recovery mode/condor_hold/condor_release}
*: {wiki: DagmanDataStructures Internal data structures}
*: {wiki: JobOrdering Proper ordering of jobs/scripts (ready queue, etc.)}
*: {wiki: PrePostSemantics Implementation of PRE/POST script semantics}
*: {wiki: ReadUserLogs Monitoring node jobs/reading the user logs}
*: {wiki: DagIsFinished Deciding when the DAG is finished}
*: ABORT-DAG-ON
*: {wiki: DagFinalNode DAG final node}
*: {wiki: NodeVars Node variables}
*: {wiki: NestedDags Nested DAGs}
*: {wiki: MultiDags Multiple disjoint DAGs}
*: {wiki: SpliceSubdags Splices}
*: {wiki: NodeRetries Node retries}
*: {wiki: DagSubmitRetries DAG submit retries}
*: DAG-wide throttles (maxjobs, maxidle, maxpre, maxpost)
*: category throttles
*: depth-first DAG traversal
*: {wiki: NodePriorities Node priorities}
*: {wiki: HaltFile Halt file}
*: {wiki: DagNoopNodes NOOP nodes (at the DAG level)}
*: {wiki: DagmanMultiJobClusters Multi-job clusters}
*: strict warnings
*: DIR on nodes
*: node status file
*: jobstate.log file
*: dot file
*: Stork support
*: {wiki: MiscNotes Miscellaneous notes}
*: {wiki: SubDagsVsSplices External sub DAGs vs. splices}