info 102 project management concepts. topics what is a project? common project terms what does a...
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Info 102
Project Management Concepts
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Topics What is a Project? Common Project Terms What does a Project Manager do? What’s in a Project? Project Management Processes Getting Started Planning a Project Executing the Plan Finishing the Project
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What is a project?
A project is an activity that : is temporary having a start and end date is unique brings about change has unknown elements, which therefore
create risk
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Generally projects are formed to solve a problem or take advantage of an opportunity.
Business as usual activities can often be mistaken for projects, as they may be completed using project methods. Generally it is the uniqueness of the activity that is the deciding factor – do we do this every year? If so, then it is not truly a project – although you can use project methods to get it done.
What is a project?
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Quiz- Are these projects?
Building a deck A restaurant planning a
menu Implementing a new
system Mowing the lawn Planning a wedding Setting up a business Planning a student
graduation
Yes No
Yes No
Yes No
Yes No
Yes No
Yes No
Yes No
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Common project terms
Deliverables: Tangible ‘things’ that the project produces
Milestones: Dates by which major activities are performed.
Tasks: Also called Actions. Activities undertaken during the project
Risks: Potential problems that may arise Issues: Risks that have happened Gantt Chart: A specific type of chart showing time and
tasks. Usually created by a Project Management program like MS Project.
Stakeholder: Any person or group of people who may be affected by your project
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Example – Building a deck Deliverables: A plan, a consent form, the deck Milestones:
Tasks:
Plan draftedPlan approved
1 Dec15 Dec
Plan submittedPlan approved
16 Dec15 Jan
Materials purchasedResources bookedEquipment identifiedDeck constructedDeck testedDeck quality approved“Deck warming” completed
16 Jan16 Jan16 Jan19 Jan23 Jan24 Jan28 Jan
Milestone Tasks
Plan drafted Requirement gatheredBest practice researchedDraft 1 preparedDistributed to stakeholders
Plan approved Feedback gatheredAmendments madeFinal plan preparedDistributed to shareholdersSign-off obtained
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Example ContinuedRisks:
•Plan is not approved after first round of feedback•Resources are not available at the required time•Plan is not given consentFor each, you should have a contingency plan, or do some activity that may prevent it happening in the first place.
If any of the above actually happens, then it becomes an issue to solve.
Gantt Chart:
Stakeholder: House owner, Builder, Council, ???
Issues:
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Project ManagerA person with a diverse set of skills – management, leadership, technical, conflict management, and customer relationship – who is responsible for:
initiating, planning, executing, controlling, monitoring,
and closing down a project.
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What does a PM do?Project Managers are essentially jugglers. They must make sure that everything keeps to task, that potential issues are quickly eliminated and the project is delivered on time, all the while making sure everyone knows what is happening and the project quality and budget are acceptable. Specifically they:
direct all activities required to successfully meet the project objectives
manage risk – scanning ahead for potential issues and resolving them before they become a problem
solve problems - recommending alternative approaches to problems that arise and providing guidance to the Project Sponsor
track and report project progress communicate to all stakeholders in the project
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Characteristics of Projects
A project contains a well defined objective. The project objective is defined in terms of scope ( or requirements), schedule, and cost.
A project is carried out via a set of interdependent tasks.
A project uses various resources to carry out these tasks.
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Characteristics of Projects
Three critical drivers Requirements (scope), cost, and
time Trade-offs exist in any project
against time and costs Time can only be reduced to a
point Adding more people can create
diseconomies of scale Increasing time may reduce or
increase costs
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Characteristics of Projects
A project has a definite start date and an expected completion date. The actual completion date may not always be the same as the expected date.
A project is a one time or unique endeavor.
A project has a customer. So why do projects fail? See later material!
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Characteristics of Projects
A project has a degree of UNCERTAINTY. In project planning many assumptions are made regarding: access to resources. resource capability. impact of environmental factors.
These assumptions are not always accurate.
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Measuring Project Success
We measure the success of a project using 4 major project constraints, specifically: Scope. Cost. Schedule (Time). Customer satisfaction (quality and
performance).
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Project Constraints Project scope – Have all the project
requirements (i.e., deliverables) been completed?
Project cost – Is the cost of the project close to the amount the customer has agreed to pay?
Schedule – Was the project completed on time?
Customer satisfaction – Is the customer happy with the quality of the project?
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Project Goal The goal of a project is therefore:
Complete the project scope within budget, time, and to the customer’s satisfaction.
Examples of sources of project failure: The project manager underestimated the costs
or resources required to complete the project. Uncertainties (e.g., weather, strikes) may cause
delays in the project. Customers may change requirements during the
project. This is very common in software and new product development projects.
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Work-Breakdown Structure WBS
Hierarchy of tasks required to complete project Each task is broken into smaller tasks that can be
managed and estimated Define task dependencies
Some tasks must begin at the same time, some must end at the same time and some cannot start until the other tasks have finished.
Estimate task durations and cost May be inputted into project management software
Final WBS plan is called baseline WBS
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WBS
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IT projects fail … a lot. Standish group (1995)
31.1% of projects will be cancelled before they ever get completed…. 80,000 projects in 1995
Over 50% of projects cost almost triple their original estimates.
1 million dollar project turns into a 3 million dollar project
Estimate: in 1995 American companies and government agencies
spent $81 billion for cancelled software projects. On the success side, the average is only 16.2% for
software projects that are completed on-time and on-
budget.
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Project Failure(French Study)
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Baseline Plan is a plan consists of:
Tasks to accomplish Resources (human and materials) Schedule for completion
Things don’t always go according to plan critical people turnover, natural disasters, hiring freeze,
technology change, new managements, competitors may make project more or less important
Requires project managers to re-assess trade-offs between requirements, costs, and time
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The Project Life Cycle
5 major phases of a project are:
Identifying a need. Developing a proposed solution. Performing the project. Monitoring and control Terminating the project.
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Typical development phases of a project
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Project Scheduling
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Activity Duration Estimates
The first step in scheduling is to estimate how long each activity will take.
The duration estimate is the total elapsed time for the work to be done PLUS any associated waiting time.
The person responsible for performing the activity should help make the duration estimate.
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Project Start and Finish Times
It is necessary to select an estimated start time and a required completion time for the overall project.
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Schedule Calculations A project schedule includes:
the earliest times (or dates) at which each activity can start and finish, based on the project's estimated start time (or date)
the latest times (or dates) by which each activity must start and finish in order to complete the project by its required completion time (or date)
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Earliest Start and Finish Times
Earliest start time (ES) is the earliest time at which a particular activity can begin.
Earliest finish time (EF) is the earliest time by which a particular activity can be completed.
EF – ES = Activity Duration Estimate
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Latest Start and Finish Times
Latest start time (LS) is the latest time an activity must be started in order for the entire project to be completed by its completion time.
Latest finish time (LF) is the latest time an activity must be finished in order for the entire project to be completed by its completion time.
LF – LS = Activity Duration Estimate
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Slack time
Slack or float is the amount of time that a task in a project network can be delayed without causing a delay to: subsequent tasks (free float) project completion date (total float)
An activity that has a total float equal to zero is said to be a 'critical activity', which means that a delay in the finish time of this activity will cause the entire project to be delayed by the same amount of time.
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Free vs Total slack Free slack:
The free slack of an activity is the time this activity can be delayed without impact on the following activity.
Total slack: The total slack of an activity is the time this activity can be delayed without impact on the finish date of the project.
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Total Slack (Cont.)
If total slack is positive, it is the maximum time the activities on the path can be delayed.
If total slack is negative, it is the amount of time the activities on the path must be accelerated.
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Critical Path The critical path is the longest
path in the diagram.
The activities that make up the critical path have the least slack.
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Types of Critical Paths
Noncritical paths have positive values of total slack.
Critical paths have zero or negative values of total slack.
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Critical Path Analysis Sequence of activities charted Used to determine the earliest date a
project can be finished Longest path through the network of
activities Task dependencies compressed as much as
possible Tasks may be moved to non-critical paths to
shorten critical path If tasks on critical path run late, the project
will be late.
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Determining the Critical Path for Project X
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Various Project Management Tools/Techniques
Gantt Chart a simple bar chart that depicts project tasks against a calendar
Program Evaluation and Review Technique (PERT) is a graphical network model that depicts a project’s tasks and the
relationships between those tasks (Dependencies and Critical paths are found in PERT charts)
Critical Path Method (CPM) A method used for determining the sequence of task activities that
directly affect the completion of a project
Microsoft Project Most widely used project management software http://office.microsoft.com/en-us/project/default.aspx
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Develop a schedule Gantt Chart
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Gantt Chart of WBS created by MS Project
Figure CE 18-5
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PERT Chart Example
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Planning Large-Scale Systems Development Projects
Biggest challenge is scheduling Errors accumulate
Difficult to do credible planning
Every task may be on critical path
MS Vista Operating system was delivered two years late. Was suppose to take 3 Y but took 5 Y ( 67% schedule overrun)
Office 2003 was late. MS SQL server 2005 barely made it into 2005.
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Managing Large-Scale Systems Development Project
Challenges Coordination
Projects often organized into independent groups Diseconomies of scale
Adding people increases coordination requirements
Configuration control Changes must be carefully manages and
monitored Unexpected events
Chance of disruption due to unanticipated events
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Dealing with Uncertainty Policies and procedures implemented to instill these principles:
Business users take responsibility for new systems’ success Users work with IS throughout systems development Users take active role in project planning, management, and
reviews Development phase not complete until work reviewed and
approved Users actively test system Future systems developed in small increments
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Demos
Project Management Demo