In a factory, capital projects run alongside daily production and are usually entrusted to the same people. A new line, a building extension, equipment for a second shift, automation or a system migration. The plan for this work usually sits in a file, while its real status sits in a verbal update at the weekly meeting. The budget accumulates in accounting, the quotes in purchasing, the task list in a messaging group. Nobody is withholding information as the project moves; simply because the information is never gathered in one place, a delay is only noticed after the schedule has already slipped. Ask anyone and they know the status of their own piece; nobody knows the status of the whole. And the gap between the status discussed in the meeting and the plan in the file is usually never written down anywhere.
For project-based companies the picture is a little harder. A machine builder, a contracting firm or an engineering team runs many jobs at the same time, and all of them draw on the same pool: the same foreman, the same machine tool, the same project engineer. Looked at one by one, every project has a plan; looked at all together, the same person appears full-time on three separate jobs. The deadlines given to customers usually slip because of this invisible clash. What is missing here is not the project plan but capacity visibility across projects; that is, the information that says when a job can actually start. Without that visibility, every deadline given is no more than a well-meaning guess.
At this point two concepts need to be separated. A project management system (PMS) runs a single project: the work breakdown structure (WBS), task dependencies, milestones, assignments and progress. Its question is this: how is this project going? Project and portfolio management (PPM) looks at the projects as a whole: which project should be started, where resources should go first, which job should be deferred or stopped, where the portfolio's total budget stands. Its question is this: are we doing the right projects, and is our capacity enough? The two can live in the same system, but they serve different screens and different meetings; confusing them ends with the project manager's working screen being shown to management as a report.
To be honest, these systems do not deliver the plan; they only make deviation visible early. Nor does the data enter itself: if nobody updates tasks, the dashboard stays empty and before long nobody looks at it. Another reality is progress percentages. Saying eighty per cent complete is a statement, not a measurement; that is why we recommend tying progress to completed deliverables. The resource plan is a forecast too, and it will not hold in the first few months; it becomes more accurate as forecast and actual accumulate side by side. We say all this up front, because most project software is abandoned not for technical reasons but because it is never filled in. Whether the system survives depends on how easy data entry is and on management's habit of looking at the same screen.