1 identifying system requirements. 2 agenda identifying system requirements –stakeholder needs...

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Identifying System Requirements

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Agenda

• Identifying System Requirements– Stakeholder Needs– Features

• Project Scope

• Stakeholder Classifications

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Identifying Requirements• Objective of the analysis phases is to understand

business processes and develop requirements for the new system

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Identifying System Requirements• “A requirement is a desired feature, property

or behavior of a system.” *

* Unified Modeling Language

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Identifying System Requirements• A requirement “is either derived directly from

stakeholder or user needs

Or

stated in a contract, standard, specification, or other formally imposed document.” *

* Use Case Modeling, by Bittner & Spence, page 5.

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• Stakeholder Need:

• A reflection of the business, personal or operational problem…that must be addressed to justify consideration, purchase or use of the new system. *

Use Case Modeling, by Bittner & Spence, page 72.

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• “If you want to satisfy [Stakeholders’] real needs, you must understand the problem that they are trying to solve.” *

*Use Case Modeling by Bittner and Spence, page. 69.

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Identifying System Requirements• Capturing stakeholder needs allows us to

understand how and to what extent the different aspects of the problem affect different [categories] of stakeholders. *


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Identifying System Requirements• Stakeholder needs are an expression of the true

‘business requirements’ of the system *


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Identifying System Requirements• Features:

– “The high-level capabilities (services or qualities) of the system that are necessary to deliver benefits to the users and that help to fulfill the stakeholders and user needs.” *


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Identifying System Requirements“Features represent some area of functionality of the system that, at this time, is important to the users of the system” *


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Identifying System Requirements“The immediate and informal nature of features makes them a very powerful tool when working with the stakeholders and customers in defining what they want from a system’s release.” *


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Identifying System Requirements“Features provide the fundamental basis for product definition and scope management”*


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What is project scope?

A definition of the boundaries of the project

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When do you define scope?

• You define scope at the beginning of the project

• You manage and control scope

throughout the life of the project

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How do you define scope?

• You talk to your stakeholders!

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How do you define scope?

In addition to talking to your stakeholders,• You research and clarify • You document• Identify expected capabilities of new

system– Develop Business Use Case Diagrams– Ask, “Is problem understood?”

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Why is scope important?

• One of the biggest factors in project success • Good scope definition = good client and IT

understanding of what will be delivered and when • Ensures you understand WHERE you are going,

HOW you will get there and WHEN you will arrive

• This is where most projects start to fail!

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To Avoid Disaster

• “The team must– Establish a good understanding of the

stakeholder community– Demonstrate an understanding of the problem

to be solved…”*

*Use Case Modeling by Bittner and Spence, p. 50.

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To Avoid Disaster

• “The team must– Capture the real needs of the stakeholders and

the system features required to fulfill them– Ensure that the views of the stakeholder

community are actively and appropriately represented throughout the project” *


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Who is a Stakeholder?

• “An individual who is materially affected by the outcome of the system or the project (s) producing the system” *

• Or the people who suffer from the problem being addressed *


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Categories of Stakeholders

• Five primary categories– Users – Sponsors – Developers– Authorities– Customers

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User Stakeholders

• Those who actually use the system• Technology Adopters

– Interested in using all of the features of the system; in pushing it to the limit of its capabilities

• Standard Users– Not interested in using all of the features of the

system. Rather they want a system that allows them to perform their business processes simply and in the same way that they are used to performing them

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Standard Users

• Those in day-to-day business operations– use and change information

• Those using queries– view calculated/collected information

• Management – use reports, statistics

– demand controls

• Executives– strategic issues

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User Stakeholders

• Non-living users– Mechanical devices that the system must interact

with

– Other business areas

– Other systems

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Sponsor Stakeholders

• Indirect users • Or those actually paying for the development of

the system• Or those affected only by the business outcomes

that the system influences

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Sponsor Stakeholders

• Business Managers, investors

• Department heads

• “champions”

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Developer Stakeholders

• Those involved in the production and maintenance

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Authority Stakeholders

• Those who are expert in a particular aspect of the problem or solution domain– Ministries

– Technical experts

– Domain experts

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Customer Stakeholders

• Those doing business with the company

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Questions to Ask to Determine Stakeholders:

• Who will be affected by the success or failure of the new solution?

• Who are the users of the system?• Who is the economic buyer for the system?• Who is the sponsor of the development? *


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Questions to Ask to Determine Stakeholders:• Who else will be affected by the outputs that the

system produces?• Who will evaluate and sign off on the system

when it is delivered and deployed?• Are there any other internal or external users of

the system whose needs must be addressed? *


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• Are there any regulatory bodies or standards organizations to which the system must comply?

• Who will develop the system?• Who will install and maintain the new system?• Who will support and supply training for the new

system?• Who will test and certify the new system? *

* Use Case Modeling, by Bittner & Spence, pages 63 - 64.

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• Who will sell and market the new system?

• Is there anyone else?

• Okay, Is there anyone else? *


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