Upcoming SlideShare
×

# B Shaped model

1,059 views

Published on

Published in: Technology
0 Likes
Statistics
Notes
• Full Name
Comment goes here.

Are you sure you want to Yes No
• Be the first to comment

• Be the first to like this

Views
Total views
1,059
On SlideShare
0
From Embeds
0
Number of Embeds
3
Actions
Shares
0
6
0
Likes
0
Embeds 0
No embeds

No notes for slide

### B Shaped model

1. 1. Middle East UniversityFaculty of ITDepartment of CISMaster Program 2012-2013 This presentation edited as a requirement assignment in Information System Development “ISD: 40201722 ” course Edited By: Jasour A.Obeidat Supervised By: Dr. Hebah Nassir dean 1 Information System Development : 40201722 (2012-2013)
2. 2. “b” Shaped ModelFlow of contents• Introduction.• “b” Shaped Model illustration.• “b” Shaped Model phases.• “b” Phase: Inception.• “b” Phase: Analysis & Design.• “b” Phase: Operation & Production.• “b” Shaped Model Advantages.2 Information System Development : 40201722 (2012-2013)
3. 3. “b” Shaped ModelIntroduction• The “b” shaped model Devised by Birrell and Ould.• The whole of system development life cycle in this model presented as a vertical line and leads to:  Maintenance cycle at the bottom.3 Information System Development : 40201722 (2012-2013)
4. 4. “b” Shaped ModelIntroduction (CON’T)• Each stage of the model is important and no stage independent of the others.• Analysts need to be aware of all other stages in the life cycle and not their part of it.4 Information System Development : 40201722 (2012-2013)
5. 5. “b” Shaped Model “b” Shaped Model illustration Note: Double arrow between each phase.Whole Sequence = b letter 5 Information System Development : 40201722 (2012-2013)
6. 6. “b” Shaped Model“b” Phase- Inception• The “b” model life cycle begin with inception.• This phase represent identification of the need for a new computer system.• Inception -> Analysis6 Information System Development : 40201722 (2012-2013)
7. 7. “b” Shaped Model“b” Phase- Analysis.• The objectives of the Analysis phase are:  Define the problem.  Create detailed specification of what system have to do?  To agree with customer about the level of service and performance .  Defining the feasibility study in order to commit project resources . Analysis -> Design7 Information System Development : 40201722 (2012-2013)
8. 8. “b” Shaped Model“b” Phase- Design.• The objectives of Design phase are:  Define the structure and content of system.  Specify how the system will be implemented?  Within this phase we design : Interfaces Dialogues Input Output Design -> Production8 Information System Development : 40201722 (2012-2013)
9. 9. “b” Shaped Model“b” Model Phase: Production.• During this phase :  Code is created.  Code is tested.  Manuals and Documentation published.  Data from previous system are converted formally to be used by the new one.  Training courses designed and implemented. Any testing at this stage is conducted by client to make sure is it close to what they requested ???9 Information System Development : 40201722 (2012-2013)
10. 10. “b” Shaped Model“b” Model Phase: Operation• After Completing Development System “goes alive”.• Operation phase started by using the system in the business which leads for system evaluation.• In this time “Maintenance Cycle” started by making inception of ideas and improvements over the system.10 Information System Development : 40201722 (2012-2013)
11. 11. “b” Shaped Model“b” Shaped Model Advantages• Flexible by its interaction with system requirements.• More than one change may be moving through maintenance cycle at the same time.• Possibility in making reverse to the previous phase if any error occur.•11 Information System Development : 40201722 (2012-2013)
12. 12. “b” Shaped Model“b” Shaped Model Disadvantages• Slow in change; for each modification there are another analysis and design phase for new requirements associated with change which leads for investigation and understood again.• What can we say else ….?????12 Information System Development : 40201722 (2012-2013)
13. 13. “b” Shaped Model The End13 Information System Development : 40201722 (2012-2013)
14. 14. “b” Shaped Model14 Information System Development : 40201722 (2012-2013)