5.1.4 - Feasibility of a project

• When you are making a new system you must consider it's benefit to a business. This is because there is no point wasting resources if it doesn't benefit the business proportionally
• 3 example benefits that a digital system is likely to provide?

  Better user experience

  Improved data management

  Better collaboration
• 4 example drawbacks of a digital system?

  Technical problems

  High initial cost

  Maintenance expenses

  Data privacy concerns
• Avery common drawback of introducing digital systems is that many stakeholders may resist the change as humans dislike change
• Risks are problems that may or may not occur during a project that may or may not cause the project to fail
• 4 common examples of risks of digital systems?

  Organisation runs out of funds

  Employees encounter setbacks

  Employees die or become ill

  The legislation regarding the system is changed
• Constraints are problems that are known to exist, they may include?

  Fixed funds

  Fixed end date

  Staff are skilled in certain things

  MUst comply with legislation
• Dependencies are where one task or activity relates to another
• 2 common examples of dependencies are?


  Project depends on certain hardware or software

  Requires another finished project
• Dependencies mainly belong to one of the following four categories?

  Mandatory

  Discretionary

  Exernal

  Internal
• Mandatory depedencies are where one activity requires another activity to be completed
• Discretionary dependencies are where the order of activities has a preffered sequence such as a user interface before database and database before customer service
• External dependencies are reliance on activities outside the project
• Internal dependencies are reliance on activities within the project
• Feasibility is the likelihood of a successful system weighed against the net benefit of a system
• The  Four Dependency Relationships are:

  FtS

  FtF

  StS

  StF
• FtS is finish to start - It refers to one project needing to be complete for another to begin. It is similar to the waterfall project approach.
• An example of FtS is needing a physical server to have been set up to put a database onto the physical server
• StS means Start To Start, meaning that two or more activities cannot begin until they all do so at the same time.
• FtF means Finish To Finish, meaning that two or more activities cannot complete until all have finished.
• StF means Start to Finish - It is the rarest of dependencies and is where the successor work item does not finish until the predecessor work item starts.
• An example of StF is waiting for regulatory approval (predecessor) before launching a marketing campaign (successor).
• 'The predecessor work item does not finish until the successor work item is finished.' What dependency relationship type is this?

  Finish to finish
• A lag can be used between tasks to slow development, as it will skip a period of time
• A lead is when a project is begun before it's predecessor is finished
• FtF is most similar to what project management approach?

  agile
• Start to start - meaning that the predessor must have begun for a successor to start
• Start to start is often employed at the beginning of the project where many independent subsections can be began