AWARE Analysis of Web Application Requirements Notation Guide Davide Bolchini, Paolo Paolini TTNM I...

AWAREAnalysis of Web Application

Requirements

Notation Guide

Davide Bolchini, Paolo Paolini

TTNM I – USI Lugano – TEC-Lab © 2004

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Scope of the Notation

• It is intended as a suggestion to:– document the results of the analysis– Support the analysis process

• Extensions may be defined

• Reformatting is possible

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Outline

• User Analysis– Goals– Scenarios

• Main Stakeholder analysis– Goals– Scenarios

• Legenda & Semantics• Advanced Concepts• Examples

User Analysis

Persons & Profiling

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Person CriteriaLIBRARY

ProfessioneLinguaLivello di conoscenza del sitoLivello di conoscenza di internetConoscenza del dominioVelocità di connessioneEtàPreferenzeMind-Set. . .

Criteria: <person_criteria>

Priority: <person_priority>

Description:<person_description>

<person_name>User Person

Criteria: profession

Priority: 0.4

Description:Italian student attending the last year at the high-school

Future USI studentUser Person

Person CriteriaLIBRARY

Access speedAgeDomain knowledgeInternet knowledgeLanguageMind-setPreferencesProfessionSite knowledge. . .

User Analysis

Goals

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Check commentsof other critics

Check for new publications Depth

{art topics}

Check for recent acquisition

Explore the bibliographiesrelative to some work of art

See How to reachAccuracy

{practical info}

Check thecollection history

Art Critic

Check ticket priceand discount

Check the history of a work of art

Highest-level goals

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Goal

Goal

Goal

Goal

Goal

Goal

Goal

Goal

Goal

Goal refinement

Goal

Goal

User Profile name

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Goal

User Profile name

Goal

Goal

Goal

Goal

Goal

Goal

Goal

Requirement name

A

Requirement name

PRequirement

name

C

Requirement name

S

Requirement name

P

Requirement name

S

Requirement name

P

Goal

Requirements definition

User Analysis

Scenarios

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Actor:<person_name> V <role_name> V <composite_profile_name>

<scenario_name>User scenario

Description

< narrative>

Actor:<person_name> V <role_name> V <composite_profile_name>

<scenario_name>User scenario

Description

• <Task description>• <Task description>• <Task description>• <Task description>

Actor:<person_name> V <role_name> V <composite_profile_name>

<scenario_name>User scenario

Description

• UML-like {Use case diagram, sequence diagram, …}

Actor:<person_name> V <role_name> V <composite_profile_name>

<scenario_name>User scenario

Description

A combination of the above described formats

Goal(s), Requirement(s) involved

<element name>

Goal(s), Requirement(s) involved

<element name>

Goal(s), Requirement(s) involved

<element name>

Goal(s), Requirement(s) involved

<element name>

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Actor:Teacher

Deciding for class visitUser scenario

Description

A high school art teacher comes to know about the exhibition of the Munch collection at the Gemaldegalerie. She has never been there but her colleagues and friends told her that it might be interesting for the pupils to visit outstanding Munch’s works that were rarely made available to the public.During lunch time, she connects to the web site in the school to see in detail what the museum is about and to get a clearer idea of opportunities for her class.She reads the introduction to the collection overview and checks for the famous works of Munch. She browses the list of all works exposed in the museum and finds some interesting works that would be really worth visiting.She discovers also that there is a large collection of Munch’s drawings that have never been showed to the public before. She definitively decides to take her class. However, it comes to her mind that it would be important to give an introductory lesson about Munch to prepare the pupils for the visit.Therefore, she searches for an explanation of four famous works, background information and references and she bookmarks the pages containing the needed material.

Goals involved

Decide if worth visitingGather material for preparing a introductory lesson before the visitOrganize the visitCheck for given works

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Outline

• User Analysis– Goals– Scenarios

• Main Stakeholder analysis– Goals– Scenarios

• Legenda & Semantics• Advanced Concepts• Examples

Main stakeholders analysis

Main stakeholders

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Roles: <main_stakeholder _role>

Priority: <main_stakeholder _priority>

Description:<main_stakeholder _description>

<main_stakeholder_name>Main Stakeholder Profile

Roles: opinion maker {influence on: museum director}

Priority: 0.3

Description:Sponsor X funds part of the events organized by the museum

Sponsor_XMain Stakeholder Profile

Roles: Domain expert, Representative, Decision Maker

Priority: 0.5

Description:Mr. X manages the organization and the maintainanceof the permanent collection.

Collection CuratorMain Stakeholder Profile

Main stakeholders analysis

Goals

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Collection Curator

Communicatethe artistic valueof the collection

Attract new visitors

High quality imagesof the works

Educate thegeneral public

Build image of a finemuseum of art

Accuracy of thepresentation

Show cultural vitality

Show attention toimpaired individuals

0.2

0.5

0.05

0.05

0.1 0.1

0.15

0.250.1

Highest-level goals

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Goal

Goal

Goal

Goal

Goal

Goal

Goal

Goal

Goal

Goal refinement

Goal

Goal

Collection Curator

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Goal

Goal

Goal

Goal

Goal

Goal

Goal

Goal

Requirement name

A

Requirement name

PRequirement

name

C

Requirement name

S

Requirement name

P

Requirement name

S

Requirement name

P

Goal

Requirements definition

Collection Curator

Main stakeholders analysis

Client Scenarios

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Actor:<person_name> V <role_name> V <composite_profile_name>

<scenario_name> (client name)Client scenario

Description

< narrative>

Actor:<person_name> V <role_name> V <composite_profile_name>

<scenario_name> (client name)Client scenario

Description

• <Task description>• <Task description>• <Task description>

•

Actor:<person_name> V <role_name> V <composite_profile_name>

<scenario_name> (client name)Client scenario

Description

• UML-like {Use case diagram, sequence diagram, …}

Actor:<person_name> V <role_name> V <composite_profile_name>

<scenario_name> (client name)Client scenario

Description

A combination of the above described formats

Goal(s), Requirement(s) involved

<element name>

Goal(s), Requirement(s) involved

<element name>

Goal(s), Requirement(s) involved

<element name>

Goal(s), Requirement(s) involved

<element name>

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Actor:Foreign high-school student

First visit (dean)Client scenario

Description

• Read the overall presentation of the faculty • Browse the list of the courses offered and he is astonished by the assortment of different disciplines covered by the program

• Find out he might learn not only computer-related stuff but also have a wide background in communication, and in the use of technology for communication, which are competencies more and more valuable today on the job market.

• Checks for fee and financial support.

• Fill in the pre-subscription form.

Goal(s) involved

Deciding whether to enroll, knowing the disctinctive features

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Outline

• User Analysis– Goals– Scenarios

• Main Stakeholder analysis– Goals– Scenarios

• Legenda & Semantics• Advanced Concepts• Examples

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Person_name

Goal_name

The subjectof user composite profile

“Own” (or, with synonims,“Pursue”, “Wish to accomplish”, “target”) relationship

the Goal owned by one or more stakeholders

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Goal_name

The main stakeholder

“Own” (or, with synonims,“Pursue”, “Wish to accomplish”, “target”) relationship

the Goal owned by one or more stakeholders

MainStakeholder_name

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Goal_name

Goal_name

Subgoal contributingto fulfil the upper goal

High-level goal

“Refinement” relationship

Goal_name

User Task contributingto fulfil the upper goal

High-level goal

“Refinement” relationship

Task

Goal_name

Requirement contributing to fulfil the upper goal

High-level goal

“Refinement” relationship

Requirement Design Dimension

Requirement nameRequirement contributing

to fulfil the upper task

User task

“Refinement” relationship

Requirement Design Dimension

Requirement name

…

Task

…

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Design Dimension

Requirement

C

S

A

N

P

U

O

I

Content

Structure of Content

Access Paths

Navigation

Presentation

User Operation

System Operation

Interaction

... . . .

p

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Requirement name

A

Requirement name

P

Requirement name

C

Requirement name

S

Requirement name

N

Requirement name

O

Requirement name

U

Requirement name

I

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Outline

• User Analysis– Goals– Scenarios

• Main Stakeholder analysis– Goals– Scenarios

• Legenda & Semantics• Advanced Concepts• Examples

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MainStakeholder_name

Goal_nameGoal_name

Softgoal_name

Person_nameRole_name

Goal_nameSoftgoal_name Task_name

Priority #

Stake_priorityStake_priorityStake_priority

PriorityPriority

Priority

Stake_priorityStake_priorityStake_priority

Priority #

PriorityPriority Priority

Priorities

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Attract new visitors

Educate thegeneral public

Build image of a finemuseum of art

CollectionCurator

MuseumDirector

CommunicationManager

MuseumSponsor

Promote Sponsored Events

Promote Own Brand

MinimizeMaintainance Costs

Valorise the richnessof the collection

Provide Highly-reliableservice

0.2 0.40.3 0.1

0.40.6

0.5

0.3

0.2

0.3

0.7

0.2

0.40.4

0.12

0.30

0.04

0.04

0.08

0.27

0.09

0.06

Priorities: examples

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Goal_nameGoal_name

OR-targetin the designer perspective

Goal_nameGoal_name

OR-targetin the user perspective

Goal_nameGoal_name

AND-targetin the user perspective

Goal_nameGoal_name

AND-targetin the designer perspective

Goal_nameGoal_name

Default target relationshipAND for stakeholder

AND for designer

MainStakeholder_nameMainStakeholder_name

MainStakeholder_name MainStakeholder_name

MainStakeholder_name

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Goal_nameGoal_name

OR-targetin the designer perspective

Person_nameRole_name

Person_nameRole_name

Goal_nameGoal_name

OR-targetin the user perspective

Person_nameRole_name

Goal_nameGoal_name

AND-targetin the user perspective

Goal_nameGoal_name

Person_nameRole_name

AND-targetin the designer perspective

Person_nameRole_name

Goal_nameGoal_name

Default target relationshipAND for stakeholder

AND for designer

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Goal_name

Goal_name

Goal_nameGoal_name

Goal_name

Goal_name

And-refinementIn the stakeholder perspective

And-refinementIn the designer perspective

Goal_name

Goal_name

Goal_name

Or-refinementIn the stakeholder perspective

Goal_name

Goal_name

Goal_name

Or-refinementIn the designer perspective

Goal_name

Goal_name

Goal_name

Default refinementAND for stakeholders

AND for designer

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XGoal 1 Goal

P

RequirementName X

S

RequirementName

Conflicts

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Outline

• User Analysis– Goals– Scenarios

• Main Stakeholder analysis– Goals– Scenarios

• Legenda & Semantics• Advanced Concepts• Examples

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Explore BiblioDepth

{art topics}

Check the history of work of art X

0.30.50.2

Art Critic0.4

0.3

Prepare to the visitDecide if worth visiting

Check commentsOther critics

0.6

1

0.70.3

0.30.7

0.1

C

Provide Bibliofor each work

N

Relate Biblioto Bookstore

0.2520.108

0.72

0.24

Teacher0.6

1

0.312 0.36 0.216

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Wrap-up

• Basic concepts (mandatory)– Users, main stakeholders, goals– Scenarios– Goal refinement and requirements

• Advanced concepts (optional)– Priorities & priorities propagation– AND/OR relationships between goals– Softgoals