Direct Capture of Objectives or DCO is an umbrella term for the set of application development tools and wizards designed to capture and tie business and project goals, objectives, processes, use cases and requirements to actual implementations.
Direct Capture facilities include: laplm 3/32010
For details about implementing and using these tools, see the Pega Developer Network article PRKB-26133 About the Direct Capture of Objectives and others linked from that article.
These tools are enabled by the Pega-AppDefinition RuleSet.