The operations and project planner
toolbox.
Find a project’s critical path, staff a contact centre with Erlang, solve a resource allocation and keep the schedule visible.
Keep this toolbox for offline use
10 useful places to start.
Models assume the inputs are right: durations are estimates, arrivals are random, and the normal approximation behind PERT is only an approximation.
Critical path method (CPM) and PERT calculator
Find the critical path, float and project duration from tasks and predecessors, or add PERT estimates for the chance of finishing on time, with a Gantt chart.
Erlang B and Erlang C calculator (call centre staffing)
Erlang C and Erlang B calculator: agents needed for a service level such as 80/20, lines for a blocking target, shrinkage, a table and a chart.
Project timeline & Gantt chart
Turn dated tasks into an editable timeline with progress bars and SVG export.
Parallel task schedule planner
Schedule independent jobs across equal lanes and visualise elapsed time.
Linear programming solver (simplex) with graph
Maximise or minimise a linear objective under up to 12 constraints with an exact simplex method, shadow prices and a feasible-region graph.
Staff coverage lower bound
Compare required coverage hours with productive hours per person.
Work capacity planner
Translate a backlog and your working-time assumptions into throughput.
Weighted decision matrix
Compare options using your own criteria, directions and weights, with an exportable ranking.
Deadline status board
Sort a dated task table by days remaining relative to your reference date.
Work calendar hours
Summarise eligible dates and assumed working hours by month.
A few things you
can tick off.
- Find the critical path of a project
- Staff a call centre for an 80/20 service level
- Maximise profit under resource limits