Checklist of Architecting Guidelines 

Information Collection Guidelines

1	Collect a list of all user types for the feature.
2	Collect a list of all user scenarios for each user type.
3	Create a list of object types managed by the feature, including all the actions (methods) that can be applied to each object type.
4	Create a list of all activities that need to be performed by the users of the feature to cover all the user scenarios.
5	Collect a list of all the activities by importance and assign each to a user type.

Constructing Snap-ins Guidelines

1	Create a hierarchical tree view that has containers for each object type.
2	Every container node has a list view in the results pane, and the Actions pane displays the applicable actions.
3	Create a single MMC snap-in for your feature if it is not complex and its functionality is not to be shared with other snap-ins.
4	Create multiple snap-ins or extensions if your feature is complex with very distinct user types and scenarios.