The star topology features a central hub or switch that acts as a server, with the peripheral devices acting as clients. All data passes through the hub or switch before going to the connected device. Generally used for wireless networks, mesh topology connects computers and network devices. In full mesh topology, all nodes are connected, while with a partial mesh topology, at least two nodes in the network are connected to multiple other nodes in that network.
In addition to the four main topologies, there are also hybrid topologies that combine at least two topologies to form something new. Hybridization makes it possible to gain the strengths of the topologies and reduce the disadvantages of each. However, you can also combine star and ring topologies, star and bus topologies, and use other combinations to get the performance you need.
The possibilities are virtually endless. Once you have a clear goal in mind, you can start your network diagram. When doing this, leave nothing out. Note: if the list starts to become unwieldy, you can create several diagrams, with one diagram devoted to a different facet of the project.
Once you understand what your network needs, you can start laying out your diagram and placing related physical or logical shapes near each other. This step is where your diagram starts to take shape. By placing a line between two shapes, you can show how those two elements are connected. Just make sure you know what each line means. If necessary, creating a legend can help. Be sure to include any relevant details about the component next to the shape or you can number them and add the details in a reference guide or legend.
Because you will use your network diagram, presented to stakeholders and used as a reference point by others, it should look professional and be easy to follow. So, make sure your diagram is clear, the connections are correct throughout; there are no missing components and that the right information is attached to the right shape.
After the critical path of the project is determined, activities on the critical path will give us the total duration of the project respectively. Network Diagrams aid in planning, organizing and controlling. Since all project activities are shown in sequence with relevant interrelationships, the network diagram of a project will help the project manager and team during planning and organizing. Network diagram will be useful during project execution as well since it is a snapshot of the project activities tied with the dependencies.
Network diagrams show interdependencies of activities. Since interdependencies of activities are visible in the network diagram, it will be easier to see which activity can start after which one, which activity depends on each other, predecessors and successors of each activity etc.
Network Diagrams show workflow of the project activities. So the project team will know the sequence of activities.
At a certain point in the project, it will be easier to see in the network diagram what has been accomplished and the remaining activities and their interdependencies with each other. The activities running in parallel face potentially having different completion times because they are dependent on the series of activities preceding.
The critical path goes through all the nodes with the longest expected completion times. In Sinnaps, the critical path is made clearly visible to users as it is highlighted at the top of the network diagram.
Any activities that are running in parallel with the critical path must consider how long their completion will take and be on par with the critical path. Most Likely time defines the expected completion time of the project. Usually, it is defined and based on the critical path. If a project team wished to know the fastest time in which they could potentially complete the project, they must decide on the shortest possible time for each of the nodes.
In this way, if they complete each node in its established shortest time, the project will be completed faster. This would be seen as the most optimistic outcome of the project. A project team may also wish to see what the worst-case scenario would be in terms of project duration. This is a useful feature of a network project diagram as it prepares both the project team and stakeholders for the worst.
The team would have to decide on the longest possible amount of time that each node could take. After adding these values, the longest duration a project could take is produced and is seen as the most pessimistic outcome.
Network diagrams are useful in project management in many ways. Some of the benefits of using network diagrams include:. Network Diagrams help validate the time estimation for your project: Networkdiagrams paint a clear picture of how varying tasks fit in to a project and their specific interdependencies. This allows for useful duration estimation.
Through the development of a critical path and the activities that lie on it, a rather accurate project duration is produced and can be used to communicate to stakeholders. Network Diagrams aid in planning, organizing and controlling: Due to the sequential visualisation of all project tasks and activities and all their dependencies, planning the project is an easier feat whilst being able to take into consideration the criticality of each task.
The snapshot of activities aids in how a PM organises the project. Cloud-based project management apps such as Sinnaps further aid in this area with a feature called Test-mode which allows PMs to produce various network diagrams before choosing the one that suits best.
Task interdependencies are clearly defined : With the help of visual representation of project tasks, their dependencies, criticality and duration are all clearly defined. What activities are dependent on each other and what their sequence is is all represented by network diagrams. Network diagrams such as those created on Sinnaps show which activities in the workflow have been completed and when, which are in process and which are left to be done.
Network diagrams identify opportunities to compress the schedule: Some activities or the project in general may need to be shortened in duration. This may need to be done for a number of reasons. Since a network diagrams lays out everything clearly, it is easier to see which activities, depending on their criticality, can be shortened or even omitted. Project progress is constantly identified: Since a network diagram visual represents everything to do with a project, progress it visible clearly and PMs can judge how could or bad they and their team are performing.
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