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COLLEGE OF BUSINESS ADMINISTRATION
MISY: Database Management for information System
Systems Development Life Cycle
Instructor Name: Mohammed Rafiq
Done by:Fatimah Al-Jomaie 200800688
Section:- 201
What is Systems development life cycle?
Systems development life cycle (SDLC) refers to a methodology for
developing systems. It provides a consistent framework of tasks and
deliverables needed to develop systems
Way to build information systems Consists of
six phases .The phases are called the life cycle
because they cover the entire life of an
information system.
Systems Development Life Cycle Stages
1.Planning involves determining what the goal is
and how best to accomplish that goal.
Planning
Purpose–preliminary understanding
Deliverable–request for study
Analysis
Logical Design
Physical Design
Implementation
Maintenance
Database activity–
enterprise modeling and early conceptual data modeling
Systems Development Life Cycle Stages
Planning
Analysis
Analysis is to determine where the problem is in an
attempt to fix it. This step involves breaking down the
stages in different pieces to analyze the situation,
analyzing goals and breaking down what needs to be
created
Logical Design
Physical Design
Implementation
Maintenance
Purpose–thorough requirements analysis and
structuring
Deliverable–functional system specifications
Database activity–thorough and
integrated conceptual data modeling
Systems Development Life Cycle Stages
Logical design the design functions and
operations are described in detail, including
business rules, process diagrams and other
documentation. The output of this
stage will describe the new system as
a collection of modules or subsystems
Planning
Analysis
Logical Design
Physical Design
Implementation
Maintenance
Purpose–information requirements elicitation and
structure
Deliverable–detailed design specifications
Database activity–
logical database design
(transactions, forms, displays,
views, data integrity and
security)
Systems Development Life Cycle Stages
Physical design specifying all the technical
detail needed to develop the system.
Planning
Analysis
Logical Design
Purpose–develop technology and
organizational specifications
Deliverable–program/data structures,
technology purchases, organization
redesigns
Physical Design
Implementation
Maintenance
Database activity–
physical database design (define
database to DBMS, physical data
organization, database processing
programs)
Systems Development Life Cycle Stages
Implementation. During this phase, the new or
enhanced system is installed in the production
environment, users are trained, data is
converted (as needed), and business processes
are evaluated.
Planning
Analysis
Logical Design
Physical Design
Implementation
Maintenance
Purpose–programming, testing, training,
installation, documenting
Deliverable–operational programs, documentation,
training materials
Database activity–
database implementation,
including coded programs,
documentation, installation
and conversion
Systems Development Life Cycle Stages
Maintenance what happen during the rest of
the system: changes, correction ,additions and
more.
Planning
Purpose–monitor, repair, enhance
Deliverable–periodic audits
Analysis
Logical Design
Physical Design
Implementation
Maintenance
Database activity–
database maintenance, performance
analysis and tuning, error corrections
Advantages of Systems Development Life Cycle
1-The Systems Development Life Cycle is the big picture of creating an
information system that handles a major task.
2- There are thousands of applications that use an information system created
just to help solve a business problem.
3-When business organization facing a keen competition in the market, rapid
change of technology and fast internal demand, system development is
necessary. system development life cycle (SDLC) which supports the business
priorities of the organization, solves the identified problem, and fits within the
existing organizational structure.
Conclusion
By the end of my presentation we should able to
know :What is Systems Development Life Cycle (SDLC) and
the phases such as: planning how it is important to
set the goals , analysis fixing problems, design
creating modules and so on.
Also, benefit of Systems Development Life Cycle
such as it helps to solve problem.
Conclusion
Systems Development Life Cycle (SDLC) what it
is and about the phases such as: planning and
how it is important to set the goals , analysis
and fixing problems, design creating modules.
Benfit of Systems Development Life Cycle such
as help to solve problem