Method

 

System elements

SSADM

UML

Unified Process

1.      Data

Logical Data Model (LDM)

The class diagram

A. The class diagram

B. Databases

2.      Events

Entity Life History (ELH)

The Behaviour (interaction) diagrams

The Behaviour (interaction) diagrams

3.      Processes

Data Flow Diagram (DFD)

The activity diagram

The activity diagram

4.      Interfaces

Dialogue Design

Modelled in class and component diagrams.

A, User screen sketches/prototypes.

B. Internal interfaces: classes and components.

5.      Resources

Requirements Catalogue (RC).

Modelled by using the stereotype feature.

Project manager plans and schedules process resources.

6.      Quality

Requirements Catalogue (RC).

A. In analysis explorative prototypes.

B. In design experimental prototypes

A. Inception and elaboration phases: explorative prototypes.

B. Tests: Integration, configuration, negative and stress.

7.      Business issues

A. Data Flow Diagrams (DFD).

B. Entity Life History (ELH).

Activity diagrams describe and model business process.

Developing business model that defines business processes.

8.      Identify the problem or problem objectives

The strategic planning defines the problem that needs to be solved.

The strategic planning defines the problem that needs to be solved.

The strategic planning defines the problem that needs to be solved.

9.      User involve-ment

A. Gathering information about system.

B. Reviewing products of each stage.

A. Gathering info- rmation about system in use case models, CRC and tech. dictionary.

B. Review/check prototypes.

A. Gathering info-rmation about system in use cases, business or domain models, suppl.  requirements.

B. Check/validate arte-facts of iteration//phases.

10.   Organi-sational structure, goals and policies

Strategic planning looks at organi-sational structure giving Project Initial Document.

Activity diagram models organisational structure and integration.

Documented in the business model and supplementary requirements.

11.   Employee job satisfaction

User may choose Business System Option (BSO) that defining impact on users and training.

Allowing employees to choose suitable way to perform assigned job.

Project feasibility, risk management, team structure, project schedule, project under-standability and sense of accomplishment

12.   Different point of views

Different views of the system are documented in Requirements Catalogue.

Analyst considers different views of system and resolves contradictions.

Different views are integrated to reach best answer.

13.   Employee values

Not Supported.

Not Supported.

Not supported

14.   System accepta-bility and usability

A. User involve-ment in developing system.

B. Use prototype.

C. Study of system impact on staff.

Involvement of users in experi-mental prototypes to verify usability/accepta-bility of system.

A. Involving user in developing system.

B. Performing acceptance test.

C. Providing users with doc/help line.

 

 

 

 

 

 

 

 


 

Extracted from “Evaluation of Systems Analysis Methodologies in a Workflow Context “

 

Fahad Al-Humaidan                                       B. Nick Rossiter

Computing Science                                       Computing and Mathematics           

Newcastle University                                    Northumbria University

Newcastle upon Tyne                                    Newcastle upon Tyne
NE1 7RU, UK                                                           NE1 8ST, UK

                                                                                    Tele: ++44 191 227 4662

                                                                                    nick.rossiter@unn.ac.uk