Construction phases, work areas, work packages and dependencies in a coordinated, reviewable workflow
<p>Benatrix uses the BIM model as an information source for scheduling and combines it with project objectives, milestones and the intended execution strategy. The plan is not produced from element names alone: model evidence, quantities, construction methods, project requirements and professional decisions are translated into a traceable schedule structure.</p><p>Lean construction planning focuses on value, workflow, making prerequisites ready in time, clear handoffs and reducing avoidable waiting. The 4D simulation visualizes the approved schedule and linked model elements; it is not a freely generated animation.</p>
<p>The project is divided into meaningful construction phases and work areas, such as floors, apartments, rooms, structural bays or subareas. Model elements and services are assigned to these areas as executable work packages.</p><p>Quantities and production-rate assumptions reveal differences in workload. Zone boundaries, sequence, batch size, crew capacity and buffers can then be reviewed. The objective is not forced uniformity, but a stable and understandable workflow with fewer interruptions and conflicts.</p>
<p>Concrete activities are created from the approved work areas and work packages. Quantities, construction methods, production rates and crew configurations determine workload and required duration. Technical, spatial and contractual conditions are documented as dependencies, approvals, constraints or milestones.</p><p>Before work is scheduled, the plan checks whether information, preceding work, material, access and approvals can be available in time. Assumptions remain visible and are not presented as confirmed project data.</p>
<p>The process begins with the project objectives, milestones, construction phases and available project information. Starting from the required outcome, the necessary workflow is reviewed backwards: which activities, decisions, approvals and preceding work must be ready, and in what sequence?</p><p>Benatrix develops a draft structure of work areas, work packages, dependencies, workloads, handoffs, buffers and logistics. It remains a planning proposal until the client, construction management and, where involved, the contractors have reviewed and confirmed the relevant assumptions and execution decisions.</p>
<p><strong>To begin:</strong> current IFC models or reliable 2D documents, the applicable design issue and project description, intended construction start and target completion, plus known milestones and contractual constraints.</p><p><strong>For a robust workflow plan:</strong> intended construction phases and handover areas, scope by trade, planned construction methods, crew sizes and production rates, work calendars, procurement and approval lead times, and constraints relating to site logistics, access, storage, safety and ongoing operations.</p><p><strong>For coordination:</strong> a knowledgeable contact and the ability to review open assumptions with the client, designers and, as early as possible, the contractors. If data is missing, work can begin with documented assumptions; the reliability of the plan increases only after they are confirmed.</p>
<p>Project start, work calendar, activity durations, dependencies, buffers, milestones and target dates are combined into a calculated schedule. This makes spatial workflow, handoffs, bottlenecks and variance from target dates reviewable.</p><p>Scheduled work packages are linked to their model elements. The 4D view shows which components and areas are planned at a given time and supports a joint review of the execution sequence.</p>
<p>Depending on the engagement, deliverables may include an area and workflow structure, a calculated schedule, documented assumptions and dependencies, milestones, model links and a 4D construction simulation. The plan can be updated when quantities, production rates or project requirements change.</p><p>The plan describes the agreed target sequence based on the available information. It does not guarantee actual execution and does not replace contractor involvement or project-specific resource, procurement, logistics or safety planning. <a href="/contact">Send project information for review</a>.</p>
<p>If no suitable BIM model is available, Benatrix can provide the required BIM modelling from agreed project documents. Existing models can be reviewed for IFC structure, element assignment, classification, attributes, quantity basis and suitability for cost, scheduling and 4D uses.</p><p>We also support BIM management: clarifying BIM objectives and information requirements, contributing to EIR/AIA and BEP/BAP documents, coordinating model deliveries, review and approval processes, and coordinating the parties required for the agreed use case. Scope and responsibility boundaries are defined for each project. <a href="/pages/bim-planung-koordination">More about BIM modelling, review and coordination</a>.</p>