Work Processing: The 4Ds

Definition

The 4Ds are a personal workflow for deciding what to do with each piece of incoming work: Do (handle it immediately if it takes less than a few minutes), Defer (schedule it in your calendar for later), Delegate (pass it to someone else), or Delete (discard it). The purpose is to move work quickly through a decision gate—clearing the inbox or task list without letting items pile up or become invisible.

This is distinct from generic "Getting Things Done" systems: Markovitz frames it specifically as a lean tool to ensure work flows through your system rather than pooling in queues, and to ensure you consciously decide what's worth your time.

In the Book

In Chapter 3, Markovitz contrasts the habit of re-reading and re-sorting email with a clear processing system. He cites the example of "$327 Million E-mail"—a company that didn't process incoming correspondence systematically, leading to missed opportunities and rework. The 4Ds force a decision point: for each message or task, ask "Do, Defer, Delegate, or Delete?"

Do: If a task takes a few minutes (a quick reply, a two-minute phone call), handle it immediately to avoid reprocessing.

Defer: Schedule larger tasks in your calendar for a specific time. This creates what Markovitz calls "designated work"—work you've consciously assigned to yourself—as opposed to reactive firefighting.

Delegate: Pass work to someone else if it's not in your value stream or if others are better positioned to do it.

Delete: Discard work that doesn't serve your customers' needs. Markovitz is emphatic: "Not every email, not every request, is worth your time." Declining or deleting is not laziness; it's focus.

The book emphasizes that without a processing discipline, work becomes invisible when your inbox hits a certain size. You can't prioritize what you can't see. By processing each item as it arrives, you maintain clarity about what you've committed to.

Why It Matters

This creates pull instead of push in your work system. Instead of a chaotic inbox driving your day reactively, you consciously decide what you're working on. Markovitz notes this shifts you from "living in your inbox" (reactive, driven by others' urgencies) to "living in your calendar" (proactive, driven by your priorities). It also prevents the waste of rework—re-reading the same email multiple times because you didn't decide what to do with it the first time. For a law firm example in the introduction, applying flow through the 4Ds freed the attorney to spend hours weekly on business development instead of fighting email.